Accession Number:

ADP012668

Title:

Irradiation Effects in Space Solar Cells Made of Multiple Absorbers

Descriptive Note:

Symposium proceedings

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

2002-01-01

Pagination or Media Count:

12.0

Abstract:

Solar cells made of multiple absorbers are a commonly used approach for improving efficiency due to their extended range of spectral sensitivity. Indeed, efficiencies nearing the theoretical maximum have been achieved with a triple-junction device made of In0.51Ga0.49P InGaP2, GaAs, and Ge solar cells connected in series. For extraterrestrial applications, there is the added requirement of radiation tolerance. The main challenge for space power-generation is therefore the development of highly efficient and radiation-tolerant devices. We have investigated several aspects of the radiation response of solar cells made of multiple absorbers, such as multijunction devices and quantum-well solar cells. Novel possibilities such as quantum-dot solar cells and ordered-disordered heterostructures are proposed.

Subject Categories:

  • Electric Power Production and Distribution

Distribution Statement:

APPROVED FOR PUBLIC RELEASE