New three-layer antireflection/surface passivating coating for high efficiency III-V compound solar cells
- Cleveland State Univ., OH (United States)
- National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
By using a chemically grown In(PO{sub 3}){sub 3}-rich oxide layer as the first layer of a 3-layer AR coating, with Al{sub 2}O{sub 3} and MgF{sub 2} as the second and third layers, the authors have addressed the problem of surface passivation and AR coating on InP solar cells. They have designed a 3-layer optimized AR coating for p{sup +}n InP solar cell, which reduces the average reflectance on the surface of cell from about 40% (bare) to less than 2%. At the same time the AR coating significantly improves the J{sub SC} and V{sub OC} by passivating the top surface of the emitter. The authors believe that the significant front surface passivation is to a large extent responsible for their achieving the record high AM0, 25 C, open-circuit voltage of 890.3 mV on a thermally diffused p{sup +}n InP(Cd,S) solar cell. This concept of using a passivating chemically grown oxide as the first layer of a multilayer AR coating can be beneficial to other III-V compound solar cells as well.
- OSTI ID:
- 536220
- Report Number(s):
- CONF-960498-; ISBN 0-7803-3283-0; TRN: IM9745%%59
- Resource Relation:
- Conference: 8. international conference on indium phosphide and related materials, Schwaebisch-Gmuend (Germany), 21-25 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of Indium phosphide and related materials 1996: Proceedings; PB: 799 p.
- Country of Publication:
- United States
- Language:
- English
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