Proton radiation analysis of multi-junction space solar cells

We report experimental results of proton irradiations with various energies on InGaP/GaAs/Ge triple-junction (3J) solar cells. The 3J solar cells consisting of stacked three different sub-cells (InGaP top cell, GaAs middle cell and Ge bottom cell) were irradiated with various energies of protons. Pr...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2003-05, Vol.206 (Complete), p.448-451
Main Authors: Sumita, T., Imaizumi, M., Matsuda, S., Ohshima, T., Ohi, A., Itoh, H.
Format: Article
Language:English
Subjects:
Proton radiation
Relative damage coefficients
Spectral response
Triple junction solar cell
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report experimental results of proton irradiations with various energies on InGaP/GaAs/Ge triple-junction (3J) solar cells. The 3J solar cells consisting of stacked three different sub-cells (InGaP top cell, GaAs middle cell and Ge bottom cell) were irradiated with various energies of protons. Proton penetration depth was calculated by the TRIM program. Current–voltage characteristic under AM0 simulated light and the spectral response under color bias light of the 3J cells were measured before and after the irradiations. Relative damage coefficients were obtained based on the irradiated cell performance. The results have revealed that protons with energy of a few hundred keV cause the most severe damage on 3J cells because the GaAs middle cell has the least radiation tolerance among the three sub-cells.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(03)00791-2