Solar Energy News -- ScienceDaily
New study on a recently discovered chlorophyll molecule could be key to better solar cells
Wed, 15 Jan 2020 12:06:24 EST
Photosynthesis, the process by which some organisms convert sunlight into chemical energy, is well known. But, it is a complex phenomenon, which involves a myriad of proteins. The molecule Chl f, a new type of chlorophyll, is known to play a part in photosynthesis, but owing to its recent discovery, its location and functions are not understood. Scientists have now analyzed in detail the protein complex involved in photosynthesis and uncovered several new aspects about Chl f.
Can solar geoengineering mitigate both climate change and income inequality?
Mon, 13 Jan 2020 07:58:28 EST
New research finds that solar geoengineering -- the intentional reflection of sunlight away from the Earth's surface -- may reduce income inequality between countries.
Growing strained crystals could improve performance of perovskite electronics
Thu, 09 Jan 2020 14:09:32 EST
A new method could enable researchers to build more efficient, longer lasting perovskite solar cells and LEDs. By growing thin perovskite films on different substrates, engineers invented a way of fabricating perovskite single crystals with precisely deformed, or strained, structures.
Tests measure solar panel performance beyond established standards
Thu, 02 Jan 2020 18:48:34 EST
In testing solar panels, the sun's intensity, the spectral composition and the angle of light are important factors in understanding why certain panels are successful and others degrade more quickly. To address the knowledge gap in degradation mechanisms for various photovoltaic types, researchers performed tests over five years in which they collected weather data and panel performance information.
Tweaks behind the rebirth of nearly discarded organic solar technologies
Thu, 19 Dec 2019 12:25:14 EST
A minuscule chemical tweak is advancing an organic solar technology that was once thought unviable.
Solar power from 'the dark side' unlocked by a new formula
Wed, 18 Dec 2019 15:35:56 EST
Most of today's solar panels capture sunlight and convert it to electricity only from the side facing the sky. If the dark underside of a solar panel could also convert sunlight reflected off the ground, even more electricity might be generated.
In breakthrough method of creating solar material, scientists prove the impossible really isn't
Tue, 17 Dec 2019 14:15:35 EST
Scientists have achieved a technological breakthrough for solar cells previously thought impossible.
Big step in producing carbon-neutral fuel: Silver diphosphide
Mon, 16 Dec 2019 12:24:20 EST
A new chemical process does in the lab what trees do in nature -- it converts carbon dioxide into usable chemicals or fuels.
Artificial intelligence may help scientists make spray-on solar cells
Mon, 16 Dec 2019 12:24:15 EST
Artificial Intelligence may be just the thing to accelerate spray-on solar cell technology, which could revolutionize how consumers use energy. A research team has used Machine Learning, aka Artificial Intelligence to optimize the materials used to make perovskite solar cells (PSC). The Organic-Inorganic halide perovskites material used in PSC converts photovoltaic power into consumable energy.
Punching holes in opaque solar cells turns them transparent
Wed, 11 Dec 2019 11:55:34 EST
Researchers in Korea have found an effective and inexpensive strategy to transform solar cells from opaque to transparent. Existing transparent solar cells tend to have a reddish hue and lower efficiency, but by punching tiny holes on crystalline silicon wafers, it allows light through without coloring. The holes are then strategically spaced, so the human eye is unable to 'see' the pattern.
New method to remove dust on solar panels
Mon, 09 Dec 2019 08:05:05 EST
Particle removal increased from 41% on hydrophilic smooth Si wafers to 98% on superhydrophobic Si-based nanotextured surfaces. The researchers confirmed these results by measuring the adhesion of a micron-sized particle to the flat and nanotextured substrate using an atomic force microscope. They found that the adhesion in water is reduced by a factor of 30.
Making higher-energy light to fight cancer
Mon, 02 Dec 2019 19:04:28 EST
Researchers have achieved photon up-conversion, the emission of light with energy higher than the one that excites the material, using carefully designed structures containing silicon nanocrystals and specialized organic molecules. The accomplishment brings scientists one step closer to developing minimally invasive photodynamic treatments for cancer. The advance could also hasten new technologies for solar-energy conversion, quantum information, and near-infrared driven photocatalysis.
Daylight damage to photovoltaics
Mon, 02 Dec 2019 10:21:02 EST
A research team has investigated the ways sunlight can degrade the efficiency of newly developed organic photovoltaics over time. This work may assist in the wide commercialization of next-generation solar sheets.
New hybrid device can both capture and store solar energy
Wed, 20 Nov 2019 13:13:09 EST
Researchers have reported a new device that can both efficiently capture solar energy and store it until it is needed, offering promise for applications ranging from power generation to distillation and desalination.
Decarbonizing the power sector
Tue, 19 Nov 2019 07:53:06 EST
Electricity supply is one of the biggest CO2 emitters globally. To keep global warming well below 2°C, several paths lead to zero emissions in the energy sector, and each has its potential environmental impacts -- such as air and water pollution, land-use or water demand. Using a first-time combination of multiple modelling systems, an international team of researchers has now quantified the actual benefits and downsides of three main roads to decarbonization.
Novel Direct Thermal Charging Cell Converts low-grade waste heat to usable electricity
Mon, 18 Nov 2019 11:09:43 EST
Engineers can now efficiently convert heat into electricity, creating a huge potential to reduce greenhouse effects by capturing exhaust heat and cutting down primary energy wastage.
Scientists show how perovskite solar cells can capture more electricity
Mon, 18 Nov 2019 10:08:39 EST
Scientists have developed a method to analyze which pairs of materials in next-generation perovskite solar cells will harvest the most energy.
Hot electrons harvested without tricks
Fri, 15 Nov 2019 19:03:19 EST
Semiconductors convert energy from photons into an electron current. However, some photons carry too much energy for the material to absorb. These photons produce 'hot electrons', and the excess energy of these electrons is converted into heat. Materials scientists have been looking for ways to harvest this excess energy. Scientists have now shown that this may be easier than expected.
New material points toward highly efficient solar cells
Tue, 12 Nov 2019 16:49:44 EST
A new type of material for next-generation solar cells eliminates the need to use lead, which has been a major roadblock for this technology.
Iron-based solar cells on track to becoming more efficient
Tue, 12 Nov 2019 14:29:30 EST
An international study shows that 30% of the energy in a certain type of light-absorbing iron molecule disappears in a previously unknown manner. By closing this loophole, the researchers hope to contribute to the development of more efficient solar cells using this iron-based solar cell.