Gallium arsenide (GaAs) is a III-V direct band gap semiconductor with a zinc blende crystal structure.
Applied Materials, Inc. is an American corporation that supplies equipment, services and software for the manufacture of semiconductor chips for electronics, flat panel displays for computers, smartphones, televisions, and solar products. The company also supplies equipment to produce coatings for flexible electronics, packaging and other applications. The company is headquartered in Santa Clara, California, and is the second largest supplier of semiconductor equipment in the world based on revenue behind ASML of Netherlands.
A solar cell or photovoltaic cell is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect. It is a form of photoelectric cell, a device whose electrical characteristics vary when it is exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as "solar panels". The common single-junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts.
Energy Conversion Devices (ECD) was an American photovoltaics manufacturer of thin-film solar cells made of amorphous silicon used in flexible laminates and in building-integrated photovoltaics. The company was also a manufacturer of rechargeable batteries and other renewable energy related products. ECD was headquartered in Rochester Hills, Michigan.
Soitec is an international company based in France, that manufactures substrates used in the creation of semiconductors.
Hanwha Solutions Corporation is a multinational energy services, petrochemical, and real estate development company headquartered in Seoul, South Korea. The company is part of the Hanwha Group, a large South Korean business conglomerate. Founded in 1965 as Hanwha Chemical, the company was rebranded as Hanwha Solutions in January 2020 when Hanwha Chemical merged with Hanwha Q Cells & Advanced Materials, which itself was formed out of a 2018 merger. The company added the Hanwha Galleria and Hanwha City Development real estate companies to its portfolio in April 2021. The Galleria division and the Advanced Materials division were spun off. The Electronic Materials business, which had remained part of the Advanced Materials division, was also transferred to a subsidiary of the company.
Nanosolar was a developer of solar power technology. Based in San Jose, CA, Nanosolar developed and briefly commercialized a low-cost printable solar cell manufacturing process. The company started selling thin-film CIGS panels mid-December 2007, and planned to sell them at 99 cents per watt, much below the market at the time. However, prices for solar panels made of crystalline silicon declined significantly during the following years, reducing most of Nanosolar's cost advantage. By February 2013 Nanosolar had laid off 75% of its work force. Nanosolar began auctioning off its equipment in August 2013. Co-Founder of Nanosolar Martin Roscheisen stated on his personal blog that nanosolar "ultimately failed commercially." and that he would not enter this industry again because of slow-development cycle, complex production problems and the impact of cheap Chinese solar power production. Nanosolar ultimately produced less than 50 MW of solar power capacity despite having raised more than $400 million in investment.
Konarka Technologies, Inc. was a solar energy company based in Lowell, Massachusetts, founded in 2001 as a spin-off from University of Massachusetts Lowell. In late May 2012, the company filed for Chapter 7 bankruptcy protection and laid off its approximately 80-member staff. The company’s operations have ceased and a trustee is tasked with liquidating the company’s assets for the benefit of creditors.
MiaSolé is an American solar energy company selling copper indium gallium selenide (CIGS) thin-film photovoltaic products. MiaSolé's manufacturing process lays CIGS on a flexible stainless steel substrate. MiaSolé produces all layers of photovoltaic material in a continuous sputtering process.
SunEdison, Inc. is a renewable energy company headquartered in the U.S. In addition to developing, building, owning, and operating solar power plants and wind energy plants, it also manufactures high purity polysilicon, monocrystalline silicon ingots, silicon wafers, solar modules, solar energy systems, and solar module racking systems. Originally a silicon-wafer manufacturer established in 1959 as the Monsanto Electronic Materials Company, the company was sold by Monsanto in 1989.
TEL Solar, formerly Oerlikon Solar, is a manufacturer of production equipment for the manufacturing of thin-film silicon cells, headquartered in Trübbach, Switzerland, near the border to Liechtenstein. The Japanese electronics and semiconductor company Tokyo Electron acquired the company of about 650 employees from OC Oerlikon in November 2012.
Cadmium telluride (CdTe) photovoltaics is a photovoltaic (PV) technology based on the use of cadmium telluride in a thin semiconductor layer designed to absorb and convert sunlight into electricity. Cadmium telluride PV is the only thin film technology with lower costs than conventional solar cells made of crystalline silicon in multi-kilowatt systems.
Veeco is a global capital equipment supplier, headquartered in the U.S., that designs and builds processing systems used in semiconductor and compound semiconductor manufacturing, data storage and scientific markets for applications such as advanced packaging, photonics, power electronics and display technologies.
Solarmer Energy, Inc. was a solar energy company that was developing polymer solar cells, a new type of solar cell; specifically, a subtype of organic photovoltaic cells (OPV). They claim their solar panels can be made flexible, transparent, and will cost less to manufacture than traditional cells.
A copper indium gallium selenide solar cell is a thin-film solar cell used to convert sunlight into electric power. It is manufactured by depositing a thin layer of copper indium gallium selenide solid solution on glass or plastic backing, along with electrodes on the front and back to collect current. Because the material has a high absorption coefficient and strongly absorbs sunlight, a much thinner film is required than of other semiconductor materials.
Bloom Energy is an American public company headquartered in San Jose, California. It manufactures and markets solid oxide fuel cells that produce electricity on-site. The company was founded in 2001 and came out of stealth mode in 2010. It raised more than $1 billion in venture capital funding before going public in 2018. Its fuel cells are subsidized by government incentive programs for green energy. As of 2020, Bloom had installed about 600 megawatts worth of fuel cells.
The energy sector of Ohio consists of thousands of companies and cities representing the oil, natural gas, coal, solar, wind energy, fuel cell, biofuel, geothermal, hydroelectric, and other related industries. Oil and natural gas accounts for $3.1 billion annually in sales while ethanol generates $750 million. Toledo is a national hub in solar cell manufacturing, and the state has significant production of fuel cells. In 2008, the state led the country in alternative energy manufacturing according to Site Selection Magazine, while the natural gas industry has experienced growth due to the expansion of shale gas.
There are currently many research groups active in the field of photovoltaics in universities and research institutions around the world. This research can be categorized into three areas: making current technology solar cells cheaper and/or more efficient to effectively compete with other energy sources; developing new technologies based on new solar cell architectural designs; and developing new materials to serve as more efficient energy converters from light energy into electric current or light absorbers and charge carriers.
Polycrystalline silicon, or multicrystalline silicon, also called polysilicon, poly-Si, or mc-Si, is a high purity, polycrystalline form of silicon, used as a raw material by the solar photovoltaic and electronics industry.
SVTC Technologies was a technology services company that provided development and commercialization services for semiconductor process-based technologies and products. SVTC operated from 2004 to October 2012.
