Design of High Efficiency Solar Cells by Photoluminescence Studies

R. K. Ahrenkiel, D. J. Dunlavy, B. M. Keyes, S. M. Vernon, S. P. Tobin, T. M. Dixon

Research output: Contribution to conferencePaperpeer-review

8 Scopus Citations

Abstract

A metalorganic chemical vapor deposition (MOCVD) AlxGa1-xAs passivated GaAs single-junction solar cell with AM1.5 efficiency of 24.8% was recently constituted. Growth process research was greatly expedited by complementary time-resolved photoluminescence measurements on double heterostructures. The latter simulated the active regions of the solar cell and produced values of the minority carrier lifetime and interface recombination velocity of the components of the solar cell. Photon recycling was shown to be a significant process in the effective lifetime of the various structures. Interface recombination was found to limit the lifetime in materials grown at temperatures below 740°C.

Original languageAmerican English
Pages432-436
Number of pages5
StatePublished - May 1990
EventTwenty First IEEE Photovoltaic Specialists Conference - 1990 Part 2 (of 2) - Kissimimee, FL, USA
Duration: 21 May 199025 May 1990

Conference

ConferenceTwenty First IEEE Photovoltaic Specialists Conference - 1990 Part 2 (of 2)
CityKissimimee, FL, USA
Period21/05/9025/05/90

Bibliographical note

Work performed by Solar Energy Research Institute, Golden, Colorado, and Spire Corporation, Bedford, Massachusetts

NREL Publication Number

  • ACNR/CP-213-11767

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