New concepts for high efficiency energy conversion [electronic resource] : The avalanche heterostructure and superlattice solar cells.
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| Online Access: |
Online Access |
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| Corporate Authors: | , |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Defense ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1993.
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| Subjects: |
| Abstract: | This report describes investigation into the theory and technology of a novel heterojunction or superlattice, single-junction solar cell, which injects electrons across the heterointerface to produce highly efficient impact ionization of carriers in the lowband-gap side of the junction, thereby conserving their total energy. Also, the superlattice structure has the advantage of relaxing the need for perfect lattice matching at the p-n interface and will inhibit the cross diffusion of dopant atoms that typically occurs in heavy doping. This structure avoids the use of tunnel junctions that make it very difficult to achieve the predicted efficiencies in cascade cells, thus making it possible to obtain energy efficiencies that are competitive with those predicted for cascade solar cells with reduced complexity and cost. This cell structure could also be incorporated into other solar cell structures designed for wider spectral coverage. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 01/01/1993. "nrel/tp-410-4960" "DE92010592" Harris, H.M.; Rohatgi, A.; Summers, C.J.; Torabi, A. |
| Physical Description: | Pages: (118 p) : digital, PDF file. |