Session 1

[OWPT1-02(Invited)] High-irradiance photoconversion using multijunction photovoltaic devices

*John F. Geisz¹, Danial J. Friedman¹, Myles A. Steiner¹, Ryan M. France¹, Kevin L. Schulte¹, Sarah Collins¹, Darin Meeker¹ (1. National Renewable Energy Laboratory)

Photovoltaic devices convert light into electrical energy at high-irradiance for concentrated solar photovoltaics, thermophotovoltaics and laser power converter applications. As the irradiance increases, the efficiency and economics improves until resistance, heating, or Auger recombination losses begin to dominate. We discuss strategies used to improve InGaAs PV performance at high irradiances.