Naslov
Is vacuum necessary for low-cost solar cells?

Autori
Etlinger, Božidar

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik povzetkov, 8. međunarodni znanstveni sestanak Vakuumska znanost in tehnika, Brdo pri Kranju 23. maj 2001 / Belić, Lidija - Ljubljana : Društvo za vakuumsko tehniko Slovenije, 2001, 22-22

Skup
8. međunarodni znanstveni sestanak Vakuumska znanost in tehnika, Brdo pri Kranju 23. maj 2001

Mjesto i datum
Brdo kod Kranja, Slovenija, 23.05.2001

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
solar cells; low-cost production; chalcopyrit

Sažetak
Solar cells can be produced in many ways with widely varying efficiency and cost. They can be divided into two grups: discrete cell technology (single crystal silicone, multicrystalline silicon, edge-defined film-fed ribbons, dentritic web, gallium arsenid) and integrated thin film technology (chalcopyrite semiconductors, amorphous silicon, cadmium telluride). Thin film is a promissing path to produce low-cost photovoltaic. Today, photovoltaic power costs about $6 a wat. The goal is to develop thin film technology that cost $1 a wat, making clean renewable solar-powered photovoltaics competitive with electricity produced by fossil fuels. Chalcopyrite semiconductors are promising absorber materials for thin solar cell application due to their high absorption coefficient, and high stability. The most importand compound is: copper indium diselenide (CuInSe2 so called CIS) with a band gap of 1.0 eV, Cu(InxGa(1-x))Se2 and CuGaSe2 with a band gap 1.7 eV. In 1996 the efficiency of devices based od CIS was 17.7%, and a prototype power module at 10.2%, the highest efficiency recorded for any thin film cell. The most common methods for preparation CIS thin films in 90th was: three-element co-evaporation and selenization, in mid 90th: the molecular-beam epitaxy (MBE), sputtering and use of magnetron, “flash evaporation”, and so-called thermal processing technique. All that methods are connected with vacuum and the prize of so produced thin films is too high. At the end of 90th and at the beginning of new century many research centers, and especially industry started introduced the new methods without of use of vacuum. In this paper will be done the comparing of some new resuts, some plans of research leaders for near future, and also the prognosis for commercial production of low-cost solar cells.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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