Open AccessMultijunction solar cell spectral response determination at radiation damage study
Author(s) -
S. A. Levina,
V. M. Emelyanov,
M. A. Mintairov,
M. V. Nakhimovich,
М. Z. Shvarts
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012180
Subject(s) - radiation , photocurrent , optoelectronics , materials science , irradiation , photosensitivity , luminescence , degradation (telecommunications) , radiation damage , solar cell , coupling (piping) , optics , physics , electrical engineering , composite material , nuclear physics , engineering
This paper discusses multijunction solar cells with optically coupled p-n junctions under radiation exposure photosensitivity spectral response study. It is shown that if the measurement technique does not consider the luminescent coupling and does not track the optical coupling degradation, then instead of a decrease (which is a natural response of a photoconverter to radiation damage), an abnormal increase in the narrow-bandgap photoresponse (receiving luminescent radiation) subcell due to radiation damage can be observed. Accordingly, with an increase in the irradiation dose, an increase in the subcell photocurrent forming a “negative” degradation dependence of MJ SC being used in space applications is recorded.