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solar News
Spectroscopy Probes the Energy-Level Landscape of Solar Cells
HEIDELBERG, Germany, Aug. 15, 2019 — A new spectroscopic method developed by researchers at Heidelberg University could enable scientists to study the physical principles of organic photovoltaics with extreme precision to gain a better understanding of how energetic losses occur. The new method combines ultraviolet photoemission spectroscopy and argon cluster etching to allow scientists to directly visualize the vertical energetic landscape in the donor-acceptor blend. The researchers investigated both model and
Schooling the solar industry
Aug 7, 2019 — At 13 years old, most of us aren’t making existing technologies obsolete with revolutionary ideas, but then again, most of us aren’t Georgia Hutchinson. For her school’s science fair, Hutchinson, an eighth grader from Woodside...
Worldwide Solar Energy Model Provides Historical PV Performance Data
AARHUS, Denmark, July 2, 2019 — A model for how much energy photovoltaic (PV) systems produce worldwide has been developed by researchers at Aarhus University. The researchers collected 38 years of global solar radiation, weather, and temperature data with a spatial resolution of...
Scientists Look to Plants to Increase Solar Panel Efficiency
UPTON, NY, June 25, 2019 — Taking notes from the light-harvesting protein complex of plants and certain bacteria, scientists from the U.S. Department of Energy’s Brookhaven National Laboratory and Stony Brook University have assembled a nanohybrid structure that...
‘Self-Healing’ Coating Minimizes Lead Leakage from Perovskite Cells
ONNA, Japan, June 25, 2019 — Adding a protective layer of epoxy resin to the top of a perovskite solar cell (PSC) can significantly reduce the amount of lead that the cell discharges into the environment, researchers at Okinawa Institute of Science and Technology (OIST)...
Nonlinear Optical Process Could Improve Solar-Powered Desalination
HOUSTON, June 20, 2019 — Researchers at Rice University have improved the efficiency of their solar-powered desalination system by more than 50% by concentrating sunlight into “hot spots.” Using the same amount of light, the researchers were able to increase the...
Light Energy and Biomass Can Be Converted to Fuel and Hydrogen
DALIAN, China, June 17, 2019 — A team at the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, led by professor Feng Wang, has developed a process for using light energy to drive the use of downstream biomass products to produce hydrogen and diesel fuel...
Solar Power Data Set Could Help Make Power Grids More Reliable
CANBERRA, Australia, May 31, 2019 — Engineers from the Australian National University (ANU) and Fraunhofer Institute for Solar Energy Systems ISE have created a data set from 1287 residential installations of PV systems across Australia and have made this data set freely available....
Photovoltaic Technologies Aim for Higher Efficiency Ratings
May 28, 2019 — In a time of growing concern about climate change and the high cost of humanity’s carbon footprint, there are glimmers of hope. A global boom in sustainable energy investment is underway. The Renewable Energy Policy Network for the 21st...
Quantum Dots Enhance Stability of Perovskites for Solar Power
TORONTO, May 27, 2019 — A team from the University of Toronto is researching materials that could enhance the solar-harvesting potential of silicon by absorbing wavelengths of light that silicon does not absorb. The researchers have demonstrated that perovskite crystals...
Tandem Perovskite Solar Cell Demonstrates Efficiency of About 23%
TOLEDO, Ohio, May 23, 2019 — A high-efficiency tandem perovskite solar cell could be ready for use in full-sized solar panels in the consumer market in the near future, said scientists at the University of Toledo, who are collaborating with the U.S. Department of Energy’s...
New Nanodevice Generates 3× More Voltage than Classic Nanoantennas
SAN LUIS POTOSÍ, Mexico, May 9, 2019 — A nanodevice for harvesting solar energy, called an evolutive dipole nanoantenna (EDN), has demonstrated the ability to generate a thermoelectric voltage up to 3× larger than a classic dipole nanoantenna (CDN). The EDN could be used in applications...
Textile-Based Display Module Is Self-Powered, Washable
DAEJEON, South Korea, March 25, 2019 — A Korea Advanced Institute of Science and Technology (KAIST) research team has developed a textile-based wearable display module technology that is washable and does not require an external power source. The team fabricated its wearable display...
Quantum Dots Demonstrate High Luminescence Efficiency
STANFORD, Calif., March 22, 2019 — A new technique for precisely measuring quantum dot (QD) performance, developed by researchers at Stanford University, showed that groups of QDs reliably emit about 99.6 percent of the light they absorb, with a potential error of 0.2 percent in...
Microscopic Robots Powered by Light Could Aid Medical Diagnostics
PHILADELPHIA, March 12, 2019 — Using novel nanofabrication techniques, researchers from the University of Pennsylvania and Cornell University have built micro-robots made from silicon and powered by solar cells. One million functional microscopic robots can be produced from a...
Defects in Perovskites Could Have Positive Impact on Optoelectronic Devices
ST. LOUIS, Feb. 22, 2019 — In a quest to design more efficient solar cells and LEDs, an engineering team from the University of Washington in St. Louis analyzed different types of defects in the semiconductor material that enables such devices to determine if and how these...
Thermally Painted Metasurfaces Yield Perfect Light Absorbers
CLEVELAND, Ohio, Feb. 22, 2019 — A 3000-year-old metallurgy technique of heating metal to create vibrant colors creates a nanostructured surface that acts as a perfect light absorber, researchers from Case Western Reserve University have found. The team applied its findings to...
Control of Nanowire Growth Advances Silicon Photonics
LAUSANNE, Switzerland, Feb. 21, 2019 — Researchers from the Swiss Federal Institute of Technology Luasanne (EPFL) Laboratory of Semiconductor Materials, together with colleagues from the Massachusetts Institute of Technology (MIT) and the Ioffe Institute in Russia, have discovered a way...
Artificial Photosynthesis Could Help Limit Carbon Emissions
BERLIN, Jan. 22, 2019 — If CO2 emissions do not fall fast enough, then CO2 will have to be removed from the atmosphere to limit global warming. New technologies for artificial photosynthesis could contribute to negative emissions of CO2, say researchers from...
Stevens Researcher Receives NSF CAREER Award to Develop Portable Solar Panels
HOBOKEN, N.J., Jan. 8, 2019 — Stephanie Lee, an assistant professor at Stevens Institute of Technology, was awarded a 2019 CAREER Award by the National Science Foundation to fund her research in engineering green, portable, cost-efficient solar panels and other power sources....
Pure Graphene Generates Photocurrent Over Great Distances
RIVERSIDE, Calif., Jan. 8, 2019 — An international research team has discovered a new mechanism for ultra-efficient charge and energy flow in pristine graphene. The team was co-led by professor Nathaniel Gabor from the University of California, Riverside. The researchers fabricated...
Machine Learning Identifies Nearly All US Solar Panels from 1 Billion Images
STANFORD, Calif., Dec. 28, 2018 — Stanford University scientists developed a machine learning program that analyzed more than 1 billion high-resolution satellite images and identified nearly every photovoltaic solar power installation in the contiguous 48 U.S. states. They found...
Colloidal Quantum Dot, IR LEDs Display Highest Efficiency
BARCELONA, Spain, Dec. 5, 2018 — A composite material that is a strong light emitter as well as an efficient charge conductor — colloidal quantum dot (CQD) LEDs — has been developed by a team at the Institute of Photonic Sciences (ICFO). The nanocomposite system comprising IR CQDs...
Perovskite-Based LEDs Achieve New Efficiency Record
CAMBRIDGE, England, Nov. 7, 2018 — A new efficiency record has been set for perovskite-based LEDs, according to researchers at the University of Cambridge. The researchers showed that by forming a composite layer of the perovskites together with a polymer, it was possible to achieve...
NUS Team Enables Solar-Powered Drone Flight
SINGAPORE, Sept. 25, 2018 — A team from the National University of Singapore (NUS) has achieved a major step forward in stretching the capabilities of quadcopter drones by powering the flight solely by natural sunlight. A first in Asia, the current prototype has flown >10 m in...
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May 2024
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