Research on stable, high-efficiency, amorphous silicon multijunction modules. Annual subcontract report, 1 May 1991--30 April 1992 [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1992. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 47 pages : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- This report describes work to demonstrate a multijunction module with a ``stabilized`` efficiency (600 h, 50°C, AM1.5) of 10.5%. Triple-junction devices and modules using a-Si:H alloys with carbon and germanium were developed to meet program goals. ZnO was used to provide a high optical transmission front contact. Proof of concept was obtained for several important advances deemed to be important for obtaining high (12.5%) stabilized efficiency. They were (1) stable, high-quality a-SiC:H devices and (2) high-transmission, textured ZnO. Although these developments were not scaled up and included in modules, triple-junction module efficiencies as high as 10.85% were demonstrated. NREL measured 9.62% and 9.00% indoors and outdoors, respectively. The modules are expected to lose no more than 20% of their initial performance. 28 refs.
- Published through SciTech Connect., 08/01/1992., "nrel/tp--411-4995", "DE92010599", Newton, J.; Bennett, M.; Li, Y.; Yang, L.; Catalano, A.; Chen, L.; D`Aiello, R.; Fieselmann, B.; Podlesny, R., National Renewable Energy Lab., Golden, CO (United States), and Solarex Corp., Newtown, PA (United States). Thin Film Div.
- Type of Report and Period Covered Note:
- Annual; 01/01/1991 - 12/31/1992
- Funding Information:
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