Lattice-Mismatched Approaches for High-Performance, III-V Photovoltaic Energy Converters

Conference · Tue Feb 01 00:00:00 EST 2005

DOI:https://doi.org/10.1109/PVSC.2005.1488186· OSTI ID:15016493

Wanlass, M W; Ahrenkiel, S P; Ahrenkiel, R K; Albin, D S; Carapella, J J; Duda, A; Geisz, J F; Kurtz, S; Moriarty, T; Wehrer, R J; Wernsman, B

We discuss lattice-mismatched (LMM) approaches using compositionally step-graded layers and buffer layers that yield III-V photovoltaic devices with performance parameters equaling those of similar lattice-matched (LM) devices. Our progress in developing high-performance, LMM, InP-based GaInAs/InAsP materials and devices for thermophotovoltaic (TPV) energy conversion is highlighted. A novel, monolithic, multi-bandgap, tandem device for solar PV (SPV) conversion involving LMM materials is also presented, along with promising preliminary performance results.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC36-99-GO10337
• OSTI ID: 15016493
• Report Number(s): NREL/CP-520-37440; TRN: US200513%%518
• Resource Relation: Conference: Prepared for the 31st IEEE Photovoltaics Specialists Conference and Exhibition, Lake Buena Vista, FL (US), 01/03/2005--01/07/2005; Other Information: PBD: 1 Feb 2005
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
BUFFERS
ENERGY CONVERSION
PERFORMANCE
SOLAR ENERGY
PV
LATTICE-MISMATCHED (LMM)
STEP-GRADED LAYERS
BUFFER LAYERS
LATTICE-MATCHED (LM)
DEVICES
THERMOPHOTOVOLTAIC (TPV)
SOLAR ENERGY - PHOTOVOLTAICS