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

Research output: Contribution to conferencePaper

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 languageAmerican English
Number of pages9
StatePublished - 2005
Event31st IEEE Photovoltaics Specialists Conference and Exhibition - Lake Buena Vista, Florida
Duration: 3 Jan 20057 Jan 2005

Conference

Conference31st IEEE Photovoltaics Specialists Conference and Exhibition
CityLake Buena Vista, Florida
Period3/01/057/01/05

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)

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