Articles tagged with Photovoltaics
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A lunar solar power system, proposed by Criswell, could supply up to 20 terawatts of electricity to Earth, enough for a population of 10 billion. The system would harness just one percent of the moon's solar power and beam it back to receivers on Earth via microwave beams.
Researchers at the University of Houston are developing methods to manufacture huge solar cell arrays on the moon using materials from lunar soil. The goal is to generate enough electricity to supply a lunar base or colonies, as well as beam electricity back to Earth for use in local grids.
Researchers have developed nanoparticles that can absorb all visible light but reject invisible light, increasing the efficiency of solar cells. This technology has the potential to make solar energy dirt cheap to produce and competitive with fossil fuels.
Chemical engineers have developed a novel process to grow crops of nanowires, which could lead to improved design of advanced military and space gear, fuel cells, sensors and solar devices. The process uses pools or thin films of low-melting metals like gallium to create the nanowires.
Researchers at Virginia Tech create flexible photovoltaic devices using nanometer-thick layers of self-assembling materials, increasing efficiency to up to 20% of silicon. Electrochromic films also improve response times, enabling faster color changes for applications in flat panel displays.
The discovery shows that confining hydrogen molecules in small spaces creates measurable magnetic interactions, which could lead to a better understanding of solar cell efficiency. The researchers believe this finding has fundamental implications for the study of nanomaterials and their potential applications.
The University of Houston's Space Vacuum Epitaxy Center has developed 15 new technologies, published over 450 scientific papers, and received $80 million in research funding. Researchers have also spun off two companies, one producing infrared lasers and the other commercializing a new type of electric wire.
The NTUA is installing 200 photovoltaic systems at private residences in remote areas, serving a single home each. The systems provide clean and quiet power for households with limited or no electricity, improving living standards.
A junior scientist has improved the efficiency of organic solar cells and discovered a new type of transistor, enabling flexible circuit manufacture. This breakthrough paves the way for simplification of circuit manufacturing and potential replacement of traditional silicon-based solar cells.
The Ninth Sede Boker Symposium on Solar Electricity Production will focus on ground-breaking work in solar power generation from around the world. Experts will share knowledge and problem-solving techniques with Arab and Israeli users of a large photovoltaic system designed for agricultural communities.
Adding nitrogen to gallium indium arsenide decreases its band gap dramatically, a significant finding for advanced solar cells. The discovery explains why the material has been disappointing in solar cells so far.
Researchers found that defects in silicon wafers, not grain boundaries, cause low efficiency; optimizing processes can remove contaminants and improve performance. The goal is to achieve 18% efficiency on the production line, a significant step towards making solar cells more profitable.
Researchers at Georgia Tech are using the university's rooftop solar system to study the performance and reliability of solar power systems. The system has operated close to expectations, producing 162.2 megawatt hours of electricity in its first seven-month period, but factors such as weather conditions have affected energy output.