Abstract
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.
Original language | American English |
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Number of pages | 9 |
State | Published - 2005 |
Event | 31st IEEE Photovoltaics Specialists Conference and Exhibition - Lake Buena Vista, Florida Duration: 3 Jan 2005 → 7 Jan 2005 |
Conference
Conference | 31st IEEE Photovoltaics Specialists Conference and Exhibition |
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City | Lake Buena Vista, Florida |
Period | 3/01/05 → 7/01/05 |
NREL Publication Number
- NREL/CP-520-37440
Keywords
- buffer layers
- devices
- energy conversion
- lattice-matched (LM)
- lattice-mismatched (LMM)
- PV
- step-graded layers
- thermophotovoltaics (TPV)