Presentation Details
| Proton-Induced Degradation and Recovery of SHJ Solar Cells for Space Applications Michael W Martinez-Szewczyk, Mariana I Bertoni. Arizona State University, Tempe, AZ, USA |
Abstract
Current space platforms rely heavily on III–V multijunction solar cells, which deliver high efficiencies, strong radiation tolerance, and excellent spectral performance. However, their dependence on scarce materials and complex epitaxial growth processes leads to high manufacturing costs and limited scalability. Silicon heterojunction (SHJ) solar cells have emerged as a promising alternative capable of addressing these limitations with excellent temperature coefficients and strong interface passivation that enables stable operation under the extreme thermal cycling encountered in orbit. With their scalability and high efficiencies, SHJ solar cells offer a scalable pathway to expand photovoltaic capability across future space systems. The work presented here demonstrates the promising stability and recovery of SHJ solar cells exposed to proton radiation equivalent to 2-5 years in operation.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.