By Mary D Archer, Robert Hill Ph.D., Juergen O Schumacher
Photovoltaic cells offer fresh, reversible electrical energy from the sunlight. made of semiconductors, they're sturdy, silent in operation and freed from polluting emissions. during this e-book, specialists from all sectors of the PV neighborhood - fabrics scientists, physicists, creation engineers, economists and environmentalists - supply their serious value determinations of the place the expertise is now and what its clients are. pattern chapters - "crystalline silicon sunlight cells" and "photovoltaic modules, structures and purposes" at the moment are on hand on-line.
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Additional resources for Clean Electricity from Photovoltaics (Series on Photoconversion of Solar Energy, Volume 1)
1938), 'Semiconductor theory of the barrier film', Naturwiss. 26, 843. Shay J. , Wagner S. and Kasper H. M. (1975), 'Efficient CuInSe2/CdS solar cells', Appl. Phys. Lett. 27, 89-90. Siemens W. (1885), 'On the electromotive action of illuminated selenium discovered by Mr. Fritts, of New York', Van Nostrand's Engineering Magazine 32, 392n. SIJ (1998), Solar Industry Journal, Vol. 9, No. 1. Smith W. (1873), 'The action of light on selenium', J. Soc. Telegraph Engineers 2, 31-33. , Starkiewicz J. and Simpson O.
13) The Past and Present 23 For good performance, iph and V^ must be as large as possible. The maximum value of iph would be obtained if all photogenerated electron-hole pairs were collected as photocurrent, and iph can achieve 80-90% of this limit if light absorption and minority carrier collection are both highly efficient. The limiting value of Vx is the built-in voltage K6°, corresponding to complete flattening of the bands across the junction. 7 V^. For a high open-circuit voltage, FA° should be as large as possible given the band gap of the semiconductor, so the work function difference between the two sides of the junction should be as large as possible.
E. (1954), 'Photovoltaic effect in cadmium sulfide', Phys. Rev. 96, 533-534. 1 for website information). , Akiyama M. and Tanaka T. (1972), 'Epitaxial growth of cadmium telluride by a closed-space technique', Jpn. J. Appl. Phys. 11, 1758-1759 Schottky W. (1938), 'Semiconductor theory of the barrier film', Naturwiss. 26, 843. Shay J. , Wagner S. and Kasper H. M. (1975), 'Efficient CuInSe2/CdS solar cells', Appl. Phys. Lett. 27, 89-90. Siemens W. (1885), 'On the electromotive action of illuminated selenium discovered by Mr.
Clean Electricity from Photovoltaics (Series on Photoconversion of Solar Energy, Volume 1) by Mary D Archer, Robert Hill Ph.D., Juergen O Schumacher