Solar Energy News -- ScienceDaily
On the road to invisible solar panels: How tomorrow's windows will generate electricity
Tue, 05 Jan 2021 10:48:39 EST
Researchers demonstrate the first transparent solar cell. Their innovative technique rests on a specific part of the solar cell: the heterojunction, made up of thin films of materials responsible for absorbing light. By combining the unique properties of titanium dioxide and nickel oxide semiconductors, the researchers were able to generate an efficient, transparent solar cell.
Using solar energy and agriculture to limit climate change, assist rural communities
Tue, 05 Jan 2021 09:56:38 EST
Co-developing land for both solar photovoltaic power and agriculture could provide 20% of total electricity generation in the United States with an investment of less than 1% of the annual US budget, new researchers found.
First glimpse of polarons forming in a promising next-gen energy material
Mon, 04 Jan 2021 13:19:18 EST
Polarons affect a material's behavior, and may even be the reason that solar cells made with lead hybrid perovskites achieve extraordinarily high efficiencies in the lab. Now scientists have used an X-ray free-electron laser to directly see and measure the formation of these ephemeral atomic lattice distortions for the first time.
A polarization-driven guide to making high-performance, versatile solar cells
Mon, 04 Jan 2021 11:04:07 EST
When solar cells are exposed to sunlight, certain bound 'charge pairs' are generated in its components, which need to be separated for photocurrent generation. Ferroelectric materials, due to their spontaneous electric polarization, are highly efficient at charge separation but do poorly in light-to-electricity conversion. Now, scientists have demonstrated using theoretical calculations that antiperovskite oxides, a class of ferroelectric materials, show large absorption of sunlight, making them suitable photoabsorbers for thin film solar cells.
Goldilocks and the three quantum dots: Just right for peak solar panel performance
Mon, 21 Dec 2020 10:12:17 EST
Maximizing the efficiency of renewable energy technology is dependent on creating nanoparticles with ideal dimensions and density, new simulations have shown.
Roadmap to renewables unites climate and sustainability goals
Fri, 18 Dec 2020 13:18:50 EST
Are clean energy plans missing the forest for the GHGs? A new study presents a roadmap to renewables that unites climate change and biodiversity goals.
Discovery of chromophores that emit light in the ultraviolet region when excited with visible light
Fri, 18 Dec 2020 11:24:56 EST
Fluorescence usually entails the conversion of light at shorter wavelengths to light at longer wavelengths. Scientists have now discovered a chromophore system that goes the other way around. When excited by visible light, the fluorescent dyes emit light in the ultraviolet region. According to the study, such light upconversion systems could boost the light-dependent reactions for which efficiency is important, such as solar-powered water splitting.
Transforming clean energy technology
Thu, 17 Dec 2020 13:52:42 EST
A team of researchers has developed a new method of harnessing solar energy, moving us closer to a clean energy future.
A new method for the functionalization of graphene
Wed, 16 Dec 2020 08:50:26 EST
A research team has demonstrated a novel process to modify the structure and properties of graphene, a one atom thick carbon.
Benefits of renewable energy vary from place to place
Mon, 14 Dec 2020 12:36:26 EST
A new study finds the environmental benefits of renewable power generation vary significantly, depending on the nature of the conventional power generation that the renewable energy is offsetting. The researchers hope the work will help target future renewable energy investments in places where they can do the most good.
New blended solar cells yield high power conversion efficiencies
Wed, 09 Dec 2020 11:51:59 EST
Researchers have blended together various polymer and molecular semiconductors as photo-absorbers to create a solar cell with increased power efficiencies and electricity generation.
Shining a light on what's really happening in perovskite solar cells
Wed, 09 Dec 2020 11:51:57 EST
Researchers used electron spin resonance spectroscopy to follow the internal deterioration mechanism of perovskite solar cells while they were in operation. They showed correlation between changes in the spin states and the performance of the solar cells. It is hoped that the findings will provide a useful starting point for the continued development of perovskite solar cells and ultimately contribute to viable green energy solutions.
'Game changer' perovskite can detect gamma rays
Wed, 09 Dec 2020 11:51:41 EST
Scientists have developed a game-changing perovskite material that can be used as a cheaper and highly efficient alternative to gamma-ray detectors.
New testing system could become the IoT of photovoltaics
Fri, 04 Dec 2020 13:13:52 EST
A new testing system measures system voltage as a function of light intensity in outdoor setting, enabling real-time performance measurement and diagnostics.
Ionic defect landscape in perovskite solar cells revealed
Fri, 04 Dec 2020 11:02:58 EST
Researchers have uncovered the ionic defect landscape in metal halide perovskites. They were able to identify essential properties of the ions that make up these materials. The migration of the ions leads to the presence of defects in the material, which have a negative effect on the efficiency and stability of perovskite solar cells.
Study shows promising material can store solar energy for months or years
Wed, 02 Dec 2020 11:44:56 EST
Researchers studying a crystalline material have discovered it has properties that allow it to capture energy from the sun. The energy can be stored for several months at room temperature, and it can be released on demand in the form of heat. With further development, these kinds of materials could offer exciting potential as a way of capturing solar energy during the summer months, and storing it for use in winter -- where less solar energy is available.
Researchers overcome barriers for bio-inspired solar energy harvesting materials
Mon, 23 Nov 2020 11:24:46 EST
Inspired by nature, researchers can demonstrate a synthetic strategy to stabilize bio-inspired solar energy harvesting materials. Their findings could be a significant breakthrough in functionalizing molecular assemblies for future solar energy conversion technologies.
Green hydrogen: Buoyancy-driven convection in the electrolyte
Thu, 19 Nov 2020 12:53:17 EST
Hydrogen produced by using solar energy could contribute to a climate neutral energy system of the future. But there are hurdles on the way from laboratory scale to large-scale implementation. A team has now presented a method to visualize convection in the electrolyte and to reliably simulate it in advance with a multiphysics model.
System can sterilize medical tools using solar heat
Wed, 18 Nov 2020 14:16:41 EST
Autoclaves, which are used to sterilize medical tools, require a steady supply of hot, pressurized steam. Researchers have come up with a way to generate that steam passively, using just the power of sunlight, to help maintain safe, sterile equipment at low cost in remote locations.
Solar cells: Mapping the landscape of Caesium based inorganic halide perovskites
Mon, 16 Nov 2020 11:29:07 EST
Scientists have printed and explored different compositions of caesium based halide perovskites. In a temperature range between room temperature and 300 Celsius, they observe structural phase transitions influencing the electronic properties. The study provides a quick and easy method to assess new compositions of perovskite materials in order to identify candidates for applications in thin film solar cells and optoelectronic devices.