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Solar photovoltaic electricity: Current status and future prospects |
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| Authors: | TM Razykov CS Ferekides E Stefanakos HM Upadhyaya |
| Affiliation: | a Physical-Technical Institute, Scientific Association “Physics-Sun”, Uzbek Academy of Sciences, G. Mavlyanov Street 2B, Tashkent 700084, Uzbekistan b Department of Electrical Engineering, University of South Florida, 4202 E. Fowler Ave., ENB 0118 Tampa, FL 33620-5350, USA c 43600 Solar Energy Research Institute, UKM, Bangi, Selangor, Malaysia d National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO 80401, USA e CREST, Loughborough University, Leicestershire LE11 3TU, UK |
| Abstract: | We review the technical progress made in the past several years in the area of mono- and polycrystalline thin-film photovoltaic (PV) technologies based on Si, III-V, II-VI, and I-III-VI2 semiconductors, as well as nano-PV. PV electricity is one of the best options for sustainable future energy requirements of the world. At present, the PV market is growing rapidly at an annual rate of 35-40%, with PV production around 10.66 GW in 2009. Si and GaAs monocrystalline solar cell efficiencies are very close to the theoretically predicted maximum values. Mono- and polycrystalline wafer Si solar cells remain the predominant PV technology with module production cost around $1.50 per peak watt. Thin-film PV was developed as a means of substantially reducing the cost of solar cells. Remarkable progress has been achieved in this field in recent years. CdTe and Cu(In,Ga)Se2 thin-film solar cells demonstrated record efficiencies of 16.5% and almost 20%, respectively. These values are the highest achieved for thin-film solar cells. Production cost of CdTe thin-film modules is presently around $0.76 per peak watt. |
| Keywords: | Solar Photovoltaics Wafer Thin film Photovoltaic market Nanophotovoltaics |
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