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Russian invasion catalyst for renewables in Ukraine: minister

By Isabel MALSANG

Paris (AFP) Feb 16, 2024






The wartime destruction of its coalmines and several of its power plants are proving a catalyst for Ukraine’s renewable energy transition, said the country’s Energy Minister German Galushchenko.

Ukraine is also looking to replace some of its lost nuclear energy production, he added.

The minister said moves towards wind and solar power, coupled with the war’s impact on classic energy infrastructure, means that “the green transition should be implemented faster than we expected.”

Russian forces have destroyed 11 coalmines, which they did to weaken Kyiv’s capacity to produce energy, Galushchenko told AFP on the sidelines of an IEE energy summit this week in Paris.

“Of course we would never restart the operations, that’s obvious,” said Galushchenko. “We understand that we will never repair” the destroyed facilities.

Ukraine has eight power plants in non-occupied territory that can run on coal or natural gas, of which three have been knocked out of action.

“We want to phase out coal of course” for climate protection reasons said Galushchenko.

“Transition will happen faster that expected due to war,” he added.

The immediate focus is on wind and solar farms.

Galushchenko said last year Ukraine constructed around 200 megawatts of wind and around 150 megawatts of solar power capacity.

Even if “it’s not a big amount, I can say that this is due to the war,” he said.

Ukraine is also looking to rebuild nuclear power to compensate for production it lost from Zaporizhzhia, Europe’s largest nuclear power plant, since Russian forces occupied the facility in 2022.

That would, Galushchenko said, involve buying two Russian VVER-1000 reactors stored in Bulgaria, initially earmarked for the Belene nuclear power plant decommissioned as a precondition for Bulgaria joining the European Union.

Two AP-1000 type pressurised water reactors would also, he said, come from US nuclear power company Westinghouse for deployment at Khmelnytskyi, in western Ukraine.

Yet some experts are sceptical as to whether that project is viable as new reactors would take at least a decade to come on stream while there are worries the reactors in Bulgaria may prove to be too old.

Galushchenko said expanding nuclear production would also open up possibilities for Ukraine to supply Europe with green hydrogen.

Hydrogen is being looked at as a fuel that could help decarbonise industry and transport as it produces no carbon dioxide when burned, and is green provided it is produced using renewable or nuclear power.

Ukraine has “calculated it will be able to produce three to five million tonnes of hydrogen per year,” Galushchenko said.

“The one question is how to transport this hydrogen … that is the most difficult question.”

Galushchenko said Ukraine’s electricity network was faring better this winter than last year.

“It’s not the same as it was before the previous winter… when we were under almost constant restrictions. Generally, we do not have restrictions in supply of electricity,” he said.

Ukraine can produce up to 18 gigawatts of electricity, he said, which is enough to handle even peak hours of consumption.

And even if Kyiv has had at times to import electricity, international support has enabled it to get by more or less.

With the end of winter approaching they may get through the most demanding season without major restrictions for consumers.

“It’s great news, and due to this we also have a growth in the economy,” said the minister.

im-ant/cw/rl

TOSHIBA

Related Links

All About Solar Energy at SolarDaily.com

Imagine slashing your energy bills in half, transforming the scorching Texas sun into your very own power plant. Dallas, a city that basks in sunlight nearly year-round, is witnessing a solar revolution, and homeowners are at the forefront, reaping the rewards. This isn’t just about saving money; it’s about embracing a sustainable future and enjoying the independence that comes with generating your own electricity. Let me take you on a journey through the secrets of solar panel installation in Dallas, Texas, that could drastically reduce your energy expenses and contribute to a greener planet.

First off, Dallas’s geographical position is a goldmine for solar energy. The city enjoys an abundance of sunny days, making it an ideal location for solar panels. However, it’s not just the sunny days that are driving the solar boom in Dallas; it’s the combination of state incentives, falling solar installation costs, and the increasing efficiency of solar technology. These factors together make the proposition of installing solar panels more attractive than ever.

Let’s dive into the nitty-gritty. The initial investment in solar panels can seem daunting to many. Yet, with federal tax incentives, local rebates, and solar programs available in Texas, the cost becomes significantly more manageable. And let’s not forget the long-term savings on your energy bill. Over time, the savings from reduced energy bills can outweigh the initial setup costs. Imagine the feeling of watching your energy meter run backward on a sunny Dallas day, knowing that each rotation is money saved and a step towards a sustainable future.

But here’s the secret sauce: choosing the right installer. Not all solar panel installers are created equal. Dallas is home to some of the best in the business, companies that not only offer top-notch installation services but also provide invaluable advice on how to maximize your investment. These experts can guide you through the maze of options to find the best solar solution for your home, taking into account factors like roof orientation, shade, and local energy rates.

Anecdotes abound of Dallas homeowners who’ve cut their energy bills in half, turning their neighbors green with envy. There’s the story of the Johnson family, who installed solar panels last summer and now enjoy virtually non-existent electricity bills during some months. Or the tale of the elderly couple who, after installing solar panels, now spend their savings on spoiling their grandchildren, rather than handing it over to the utility company.

But it’s not just about individual savings. By installing solar panels, Dallas residents are contributing to a larger movement, a shift towards renewable energy that reduces reliance on fossil fuels, curbs greenhouse gas emissions, and combats climate change. It’s a collective effort that enhances the city’s resilience and sets a sustainable example for future generations.

The transition to solar power is not just an economic decision; it’s a lifestyle choice that speaks volumes about your commitment to sustainability and your willingness to invest in a cleaner, brighter future for Dallas and the planet. It’s a statement that you’re part of a community that values innovation, independence, and the health of the environment.

So, if you’re a Dallas homeowner pondering the solar plunge, the time is now. The secrets out: solar panels are no longer just an alternative; they’re a smart, financially savvy, and environmentally responsible choice. With every panel installed, Dallas moves a step closer to a sustainable future, powered by the relentless Texas sun. And that’s a future we can all be excited about.

In the heart of the Mojave Desert, Las Vegas stands as an oasis of glittering lights and 24/7 entertainment. But beyond the neon and the nightlife lies a question of practicality and sustainability: Are solar panels truly worth it in this sun-drenched city? I’m diving headfirst into the scorching debate, peeling back the layers of hype to uncover the raw truth about solar energy in Las Vegas.

First off, let’s talk sunlight. Vegas isn’t just a hotspot for high rollers and show-goers; it’s a literal solar powerhouse. With over 300 days of sunshine annually, the potential for solar energy is immense. But does this abundant sunshine translate to tangible savings on your energy bills? Absolutely. The math is simple: More sunlight equals more energy production, which in turn can significantly lower your electricity costs. It’s like hitting a green jackpot without setting foot in a casino.

However, the allure of solar in Vegas isn’t just about slashing your utility bills. It’s also about independence. In a city that thrives on excess, generating your own power feels rebelliously self-sufficient. Imagine a sweltering summer day when AC units are working overtime, and you’re not sweating the electric bill because your roof is busy converting sunlight into cooling bliss. It’s a liberating feeling, akin to finding a secret shortcut on the Strip that bypasses all the crowds.

But here’s where the plot thickens. The initial investment in solar panels can feel like placing a hefty bet. The upfront costs are not for the faint of heart, yet the long-term payoff is enticing. With federal and state incentives sweetening the pot, plus the promise of increased home value, taking the solar plunge can feel less like a gamble and more like a strategic move in the game of financial security. It’s about playing the long game, watching your savings accumulate like chips on a winning streak.

Critics may argue that solar panels are a high-maintenance luxury, a shiny accessory for the eco-conscious elite. But let’s bust that myth right now. Solar technology has leaped forward, making panels more durable, efficient, and accessible than ever. Maintenance is minimal, and the latest models can withstand even the most brutal Vegas sun without breaking a sweat. It’s like having an ace up your sleeve, a silent, sun-harvesting ally on your roof.

Now, for a dose of reality. Solar panels aren’t a one-size-fits-all solution. The effectiveness of your solar setup depends on various factors, such as roof space, orientation, and shade. Not every home in Vegas is a prime candidate for solar, but for those that are, the benefits can be substantial. It’s like discovering you’re sitting on a goldmine, only this time, the gold is green, and the mine is your rooftop.

Embracing solar in Las Vegas is not just about the immediate perks. It’s a vote for a cleaner, more sustainable future. In a city that never sleeps, powered by an industry that’s anything but eco-friendly, choosing solar is a powerful statement. It’s a declaration that you’re part of the solution, a pioneer on the frontier of renewable energy. And let’s be real, there’s something incredibly satisfying about watching your meter run backward, knowing you’re feeding clean energy back into the grid, offsetting the carbon footprint of one neon sign at a time.

So, are solar panels worth it in Las Vegas? The evidence shines as brightly as the desert sun. Between the financial savings, the environmental impact, and the sheer cool factor of generating your own power, solar panels are more than just a viable option; they’re a smart investment in your future and the planet’s. In a city built on dreams and driven by energy, going solar is perhaps the most Vegas thing you can do—bold, optimistic, and undeniably forward-thinking.

Europe Invests in Thermal Energy Storage Innovation

by Robert Schreiber

Berlin, Germany (SPX) Feb 09, 2024






An ambitious international research endeavor, spearheaded by the Martin Luther University Halle-Wittenberg (MLU), is set to revolutionize seasonal thermal energy storage technologies. Titled “INTERSTORES,” this project is at the forefront of designing and integrating novel storage systems into our energy infrastructure, marking a significant step forward in the energy transition movement.



Funded under the “Horizon Europe” program, the initiative boasts nearly eleven million euros in support, with MLU receiving approximately 1.5 million euros. This substantial investment underscores the project’s critical role in enhancing the performance and cost-efficiency of thermal energy storage systems, aiming to propel these technologies to market readiness.



Professor Peter Bayer, a geoscientist at MLU and the project lead, highlights the essential challenge renewable energy faces-storage. Particularly in temperate climates, energy, especially in the form of heat, is abundant in summer but scarce in winter. “That is why we need simple and cost-effective solutions so that, for example, the surplus energy from the summer can be used in the winter,” Bayer explains.



Initial systems utilizing water heated by solar energy or waste heat, stored in large underground tanks, demonstrate the concept’s viability. Despite the proven potential of these thermal storage solutions, their widespread implementation is hindered by high investment costs, economic risks, and a lack of practical planning tools. The INTERSTORES project aims to address these barriers through a collaborative effort involving partners from nine countries, each bringing expertise in business, engineering, geosciences, and environmental technology.



A key focus of the project is demonstrating how large storage systems can be constructed in an efficient, cost-effective, and environmentally friendly manner. This effort includes the development of two distinct facilities: one leveraging existing basin infrastructure in Ingolstadt, Germany, and another involving the excavation of a massive cavern near Helsinki, Finland, capable of holding approximately one million cubic meters of water. These demonstration plants offer a unique opportunity to test the technology at full scale, aiming to bridge critical knowledge gaps and provide practical insights for future implementations.



“By including these two demonstration plants in the project, we have the unique opportunity to investigate the technology at full scale. We want to close critical knowledge gaps to create reliable, functionally robust systems and to obtain practical information for specific implementation projects in the future,” concludes Bayer. Through the INTERSTORES project, MLU and its partners are paving the way for a more sustainable and efficient energy future, showcasing the pivotal role of thermal energy storage in the global shift towards renewable resources.


Related Links

Martin Luther University Halle-Wittenberg

Powering The World in the 21st Century at Energy-Daily.com

Space reflectors could ensure bright future for solar power farms

by Sophie Jenkins

Glasgow UK (SPX) Feb 06, 2024






Researchers at the University of Glasgow have taken a significant step forward in the quest for sustainable energy solutions with their latest study on the potential of orbiting solar reflectors. Published in the journal Acta Astronautica, their research unveils a pioneering method to augment the energy output of large-scale solar farms by harnessing additional sunlight reflected from space-based mirrors, extending the power generation window beyond sunset.



The paper, a result of advanced computer simulations, outlines the feasibility of deploying 20 gossamer-like reflectors into a 1000-kilometer orbit above Earth. These reflectors, strategically positioned near the planet’s terminator line in a Walker constellation-a satellite arrangement ensuring consistent Earth coverage-could illuminate solar farms with extra sunlight for two hours daily. This novel approach promises to scale up solar energy production, addressing the critical demand for electricity during the early evening hours.



Dr. Onur Celik, a leading figure from the James Watt School of Engineering at the University of Glasgow and the corresponding author of the study, emphasized the growing role of solar power in achieving net-zero goals. He highlighted the rapid decline in solar panel costs as a catalyst for the widespread adoption of solar energy, underscoring the technology’s limitation to daylight hours. “Orbiting solar reflectors present an innovative solution to maximize solar farms’ output, potentially revolutionizing locations and effectiveness of future solar energy projects,” Dr. Celik remarked.



This research is part of SOLSPACE, a groundbreaking initiative spearheaded by the University of Glasgow with a euro 2.5 million grant from the European Research Council under the European Union’s Horizon 2020 program. Professor Colin McInnes, SOLSPACE’s principal investigator, reflects on the historical context of space reflectors, noting their conceptual discussions dating back to the 1920s and practical demonstrations in the early ’90s.



The SOLSPACE project aims to advance these ideas significantly, leveraging modern technological capabilities and the decreasing cost of space launches to propose a feasible, large-scale application of orbital reflector technology for global clean energy services.



The team’s findings suggest that the deployment of 20 such reflectors could produce an additional 728 megawatt-hours of electricity daily, akin to the output of a large solar farm, but without the need for extensive land use or infrastructure development.



This approach not only promises to enhance the efficiency of solar power generation but also offers a sustainable pathway to meet the escalating global energy demand while mitigating climate change impacts.



As the world grapples with the urgent need for clean energy solutions, the University of Glasgow’s research offers a glimpse into the potential of space-based technologies to complement terrestrial efforts in renewable energy generation. The integration of orbiting solar reflectors with solar farms could mark a significant leap in our pursuit of sustainability, demonstrating the untapped potential of space to contribute to Earth’s energy matrix.



The team’s paper, titled ‘A constellation design for orbiting solar reflectors to enhance terrestrial solar energy’, is published in Acta Astronautica. The research was supported by funding from the European Research Council under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 883730).


Related Links

University of Glasgow

All About Solar Energy at SolarDaily.com

NUS develops perovskite nanocrystal scintillators for precise single-proton detection

by Simon Mansfield

Sydney, Australia (SPX) Feb 02, 2024






In a significant leap forward for particle radiation detection technology, researchers from the National University of Singapore (NUS) have introduced an innovative transmissive thin scintillator crafted from perovskite nanocrystals. This novel device is engineered for the real-time tracking and counting of single protons, marking a considerable advancement in the field of particle detection.



At the heart of this breakthrough is the scintillator’s exceptional sensitivity, attributed to biexcitonic radiative emission generated through proton-induced upconversion and impact ionization. This technological innovation is poised to revolutionize a range of scientific and technological domains, including fundamental physics, quantum technology, deep space exploration, and notably, proton cancer therapy.



The quest for precise dose control in proton therapy has catalyzed extensive research into advanced proton detectors. The NUS team’s development stands out by addressing a critical challenge in the field: the need for real-time proton irradiation with single-proton counting accuracy. Unlike traditional particle detectors, which are hampered by their bulkiness or insufficient sensitivity, the NUS-developed scintillator combines ultrathin construction with unparalleled sensitivity.



Led by Professor Liu Xiaogang from the NUS Department of Chemistry and Associate Professor Andrew Bettiol from the NUS Department of Physics, the research team has showcased a thin-film transmissive scintillator that significantly outperforms existing solutions. With a light yield approximately double that of commercially available BC-400 plastic thin-film scintillators and ten times greater than conventional bulk scintillators like LYSO:Ce, BGO, and YAG:Ce crystals, this innovation represents a major step forward in the detection and imaging of single protons.



The scintillators, with a mere thickness of about 5 um, achieve a detection limit of 7 protons per second- a sensitivity that is several orders of magnitude lower than the counting rates deemed clinically relevant. This capability is crucial for applications where precise detection and imaging are paramount.



Moreover, the team has put forward a novel theory regarding the scintillation mechanisms induced by protons in CsPbBr3 nanocrystals, providing significant insights into the fundamental processes underpinning proton scintillation. This understanding is instrumental in harnessing the full potential of perovskite nanocrystals in particle radiation detection.



Utilizing the enhanced sensitivity and fast response time (~336 ps) of these scintillators, the researchers have demonstrated their utility in applications ranging from single-proton tracing and real-time patterned irradiation to super-resolution proton imaging. Impressively, the study achieved a spatial resolution of sub-40 nm for proton imaging, heralding new possibilities for materials characterization, medical imaging, and scientific research.



Professor Liu emphasized the transformative impact of their work, noting, “The breakthrough presented in this work would be of considerable interest to particle radiation detection communities, offering both fundamental insights into new mechanisms of proton scintillation and technical advances in groundbreaking single-ion detection sensitivity using ultrathin proton-transmissive scintillators. In particular, these CsPbBr3 nanocrystal scintillators hold overwhelming promise for advancing detection technology in proton therapy and proton radiography.”



Published in the journal Nature Materials, this research not only contributes to the advancement of detection technologies but also underscores the potential of perovskite nanocrystals in revolutionizing the field. As the scientific community continues to explore the applications of this novel technology, the findings from the NUS team offer a promising path towards improved diagnostics, therapy, and understanding of particle physics.



Research Report:Real-time single-proton counting with transmissive perovskite nanocrystal scintillators


Related Links

National University of Singapore

All About Solar Energy at SolarDaily.com

Bipartisan bill addressing lithium-ion battery fires awaits congressional action

by Dana Forsythe

Washington DC (UPI) Jan 29, 2024






With electric bikes growing in popularity, poorly manufactured lithium-ion batteries and electronics have led to a spate of fires. New congressional legislation aims to fix the problem.

With bipartisan support, members of the House and Senate, including U.S. Rep. Ritchie Torres, D-N.Y., hope to implement safety standards for manufacturing the small but powerful batteries.

According to Torres, deaths associated with e-bike fires have steadily risen since 2019. In an interview with Bronx12 in January, Torres said he was optimistic the bill that provides more safety measures, will move forward.

“I’m confident that we’re going to pass it on a bipartisan basis this year,” he said.

In addition to powering devices like smartphones, laptops and power tools, lithium-ion batteries are in many of the devices used every day, including e-bikes. When these batteries are damaged, they can overheat, catch on fire and potentially lead to explosions.

According to the National Fire Protection Association, e-bike and e-scooter battery fires have been associated with faulty charging equipment, improper charging practices and overloaded electrical circuits.

In December, HR 1797, also known as the “Setting Consumer Standards for Lithium-Ion Batteries Act,” was introduced in the House and referred to the Energy and Commerce Committee.

If passed, it would require the Consumer Product Safety Commission “to promulgate a consumer product safety standard with respect to rechargeable lithium-ion batteries used in micromobility devices, and for other purposes.”

A companion bill in the Senate, S.1008, was introduced March 28 and referred to the Commerce, Science and Transportation Committee.

Gabe Knight, safety policy analyst for Consumer Reports, said that in New York City alone, 267 fires and 18 deaths linked to unsafe lithium-ion batteries in micro mobility devices occurred in 2023.

“Tragically, some of those deaths involved children,” he told UPI. “This marks a significant increase from 2022, in which there were six such deaths in New York City. Nationally, the Consumer Product Safety Commission recorded 19 deaths linked to micro mobility fires from Jan. 1, 2021, through Nov. 28, 2022.”

The U.S. e-bike market size was valued at $1.98 billion in 2022 and is expected to grow some 15.6% a year from 2023 to 2030, according to Grandview Research.

The boom results largely from people adopting electric bikes for daily commutes, growing environmental concern for reducing carbon emissions and the increased support by the U.S. government.

By 2030, the global market for e-bokes is projected to reach just under 77.3 million e-bikes by 2030, according to Statista.

Knight said Consumer Reports strongly supports the bill and has urged every member of Congress to join the effort. The bill has has received endorsement from the Fire Department of New York, the International Association of Fire Chiefs, delivery services like GrubHub and Doordash, and organizations like PeopleForBikes.

“Some people see all e-bikes as dangerous and others will understand that some are safer than others, said Brandale Randolph, CEO and founder of the 1854 Cycling Co., an electric bike manufacturer based in Boston.

The company is preparing to deliver the Bowditch e-bike to law enforcement agencies this summer.

“The e-bike fires are very similar to the fires happening with low quality scooters, hoverboards and even fully electric vehicles in that companies are looking for lower-cost ways of making lithium-Ion based storage systems,” Randolph said.

Randolph said his company has transitioned away from lithium-ion batteries and developed “safer higher quality energy systems,” which has priced them out of the retail market.

Kevin Cox, President of Electra Bicycle Co., said his firm has focused on safety and aesthetics with its most recent lines of e-bikes. Electra makes a wide variety of e-bikes from cruisers to commuter models like the Ponto Go!

“Motors and batteries that have undergone testing and meet U.S. and global regulatory standards are a must, as are quality components and safety features,” Cox said. “Consumers must make sure their e-bike or any e-bike they are thinking of purchasing is equipped with a battery that is UL2849 certified.”

UL 2849 is “the standard for electrical systems for e-Bikes, for the electrical system of any powered bicycle sold, distributed, leased or rented in New York City,” according to Consumer Product Safety Commission.

In addition , Cox said, riders should only use the manufacturer’s battery charger that came with their e-bike and store the bike in a cool, dry place when put away for long periods of time.

“While many bikes these days are sold online, it’s essential consumers know whether their local bike shop can provide the necessary support and service for their new purchase,” he said.

“E-bikes are more complex and will require additional servicing to keep them in the best and safest condition. Pay attention to who you buy an e-bike from. This purchase should be no different than any other large purchase one would make.”

Related Links

Powering The World in the 21st Century at Energy-Daily.com

Innovative chiral molecule strategy boosts perovskite solar cell efficiency

by Simon Mansfield

Sydney, Australia (SPX) Jan 29, 2024






In the dynamic world of solar energy, metal halide perovskite solar cells (PSCs) have recently marked a significant milestone, with their power conversion efficiency (PCE) reaching an impressive 26.1%, inching closer to the efficiency levels of traditional crystalline silicon cells.



This achievement is particularly notable given the relatively short time span of just over a decade in which PSCs have developed. The latest research indicates that PSCs could potentially exceed a 30% PCE threshold, a development that could revolutionize solar energy technology.



The recent advancements in PSC technology primarily hinge on the quality of perovskite films used in these cells. The goal is to minimize defect density and achieve exceptional homogeneity in the films, thereby enhancing the overall performance of the solar devices.



Traditionally, the process of creating high-quality perovskite films involves introducing specific molecules during the film’s crystallization phase. These molecules help reduce defects or prevent excessive components in the films, a process known as passivation.



However, conventional passivation strategies in perovskite photovoltaics, typically involving the ABX3 structure, have their limitations. These limitations arise from the interactions between the passivation molecules and the perovskite sites, labeled as A, B, and X.



At the forefront of this research is Prof. Wang’s group from Soochow University, who have introduced a novel method for manipulating the crystal orientation of metal halide perovskites. Their approach involves using chiral molecules to establish a quantified strong force with formamidine (FA) ions in the perovskite, known as the magnetic dipole moment. This method addresses a critical issue in conventional perovskite film crystallization, where the production of a phase harmful to the device, termed the ‘d phase,’ is inevitable.



The use of chiral passivation molecules alone can regulate the composition of perovskite films but is insufficient to ensure an orderly overall structure. However, the application of an external magnetic field, leveraging the spin-orbit coupling effect, enhances this interaction. This allows for the precise adjustment of crystal orientation in the perovskite film while optimizing its composition.



Collaborating with Ilhan Yavuz and his team at Marmara University, Prof. Wang’s group has provided theoretical and computational support for this strategy. This collaboration has demonstrated the feasibility and effectiveness of this approach from both theoretical and experimental perspectives.



In contrast to conventional passivation strategies that involve the direct implementation of organic molecules, this new method significantly increases the interaction energy between chiral molecules and perovskites. This improvement ensures more effective crystallization regulation and achieves a uniform perovskite film.



The Shanghai Synchrotron Radiation Facility, with contributions from Xingyu Gao and colleagues, used in situ crystallization process detection technology to observe a clear and comprehensive improvement in the quality of perovskite films under this synergistic effect.



Research Report:Magnetic-biased chiral molecules enabling highly oriented photovoltaic perovskites


Related Links

Institute of Functional Nano and Soft Materials (FUNSOM)

All About Solar Energy at SolarDaily.com

Digital
entrepreneurs
are
building
empires
by
selling
digital
products.

They
are
operating
the
entire
business
from
one
single
room,
sitting
on
their
couches.

Digital
products
are
something
that
is
tasteless,
have
no
smell,
and
can’t
be
touched
but
are
selling
like
hot
products
and
are
very
much
in
fashion.

Yes,

Some
of
the
digital
products
can
be
converted
into
physical
form
like
an
e-book
(PDF
format);
you
can
print
them
on
paper.

Digital
products
are
very
popular
among
creators
because:

)
Selling
digital
products
business
is
infinitely
scalable.

b)
Once
created,
digital
products
can
be
sold
repeatedly
to
the
customers.

c)
Their
ease
of
distribution,
almost
zero
delivery
time,
no
need
for
replenishing
the
inventory,
low
cost,
and
instant
payout.

d)
Also,
the
value
addition
has
made
them
equally
popular
among
the
creators
like
freelancers,
educators,
bloggers,
small
businesses
on
one
side
and
buyers
on
the
other
side.

Also,
the
current
pandemic
(COVID-19)
situation
has
increased
the
importance
of
digital
products
many-fold.

Creators
are
exploring
new
opportunities
to
showcase
their
talent
to
the
world
and
selling
digital
products
is
the
best
way
to
do
this.

I’m
sure
that
the
year
2022
is
going
to
be
the
year
of
Digital
Creators.

If
you’re
an
expert
in
any
topic
then
encasing
it
in
digital
form
and
selling
to
the
interested
ones
is
a
great
idea.

Let
us
discuss
the
digital
products
that
are
hot,
popular,
and
creating
value
for
the
buyers:

Online
Solar
Course

An
online
course
is
like
a
classroom
where
you
teach
your
students
through
recorded
videos,
text
presentations,
audio,
downloadable
assignments,
and
other
materials.

The
lessons
are
systematically
arranged
and
are
filled
with
live
examples
so
that
the
students
can
understand
the
whole
concept
easily.

Online
courses
have
made
anyone
learn
from
anywhere
and
that
too
without
being
expensive.

Moreover,
these
courses
are
in
no
way
inferior
to
the
classroom
courses
in
delivering
value
to
the
students.

You
too
can
create
an
online
course
on
any
topic
of
your
interest.

However,
the
following
points
should
be
kept
in
mind
while
designing
it:

Revolution in low-light imaging with integrated photovoltaic and photodetector organic device

by Riko Seibo

Seoul, South Korea (SPX) Jan 26, 2024






In a significant advancement in organic-based optoelectronic technology, the Korea Institute of Science and Technology (KIST), in collaboration with experts from Korea University and Ewha Womans University, has developed an innovative device that uniquely combines the functions of organic photovoltaic cells (OPVs) and organic photodetectors (OPDs). This development marks a novel stride in creating low-power, efficient solutions for indoor electronics and wireless IoT sensors.



Historically, the development of OPVs and OPDs has been pursued independently, despite their potential synergies. OPVs are known for their ability to generate electricity even under low-light conditions, while OPDs excel in capturing images. However, their independent development paths have so far limited their practical application in next-generation, miniaturized devices due to efficiency constraints.



The joint research team, led by Dr. Min-Chul Park and Dr. Do Kyung Hwang from KIST, Prof. Jae Won Shim and Prof. Tae Geun Kim from Korea University, and Prof. JaeHong Park from Ewha Womans University, has bridged this gap by integrating these two technologies into a single device. This innovative approach not only enables simultaneous energy harvesting and image capturing but also significantly enhances energy efficiency in indoor environments.



One of the key advancements in this technology is the transformation of the organic semiconductor layer into a multicomponent structure, which has led to a remarkable improvement in the device’s performance. In indoor settings, the device achieves an impressive photoelectric conversion efficiency of over 32%, coupled with a linear dynamic range exceeding 130 dB. This enhancement, particularly in contrast ratio and low-light conditions, allows for clearer image capturing compared to conventional silicon devices, which typically offer a linear dynamic range of around 100 dB.



The research team has also made notable progress by successfully implementing single-pixel image sensing. This system captures ambient light, converts it into electrical energy, and uses this energy for image acquisition. This new photodetector, characterized by its multi-component semiconductor layer, offers versatile applications. It functions not only as a conventional camera but also as an aesthetic and practical element that can be integrated into windows or walls, providing sufficient resolution to discern shapes and movements.



Dr. Min-chul Park from KIST underscored the versatility and potential of this technology, stating, “While primarily functioning as an energy harvester, it can also be applied to detect movement and recognize motion patterns in environments without light.” He expressed optimism about its applications in various sectors, including human-computer interaction (HCI) research and smart indoor environments.



This breakthrough represents a significant step forward in the field of organic optoelectronics. By combining energy harvesting and imaging capabilities, the team has opened new avenues for eco-friendly and efficient solutions in indoor electronic applications. The device’s ability to operate effectively in low-light conditions while providing dual functionality underscores its potential impact on the advancement of wireless IoT sensors and other indoor electronics.



Research Report:Self-Powering Sensory Device with Multi-Spectrum Image Realization for Smart Indoor Environments


Related Links

National Research Council of Science and Technology

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