Presentation Details
| Reduced mass, self-curing, industry compatibility: optimization of silicon-based SHJ solar cells for space applications Samuel Harrison1, Nicolas Enjalbert1, Charles Seron1, Christine Denis1, Romain Cariou1, Matthieu Fongral2, Loris Ibarrart2, Sebastien Dubois1. 1Univ.Grenoble Alpes, CEA-INES, Le Bourget Du Lac, France.2Centre National d'Etudes Spatiales (CNES), Toulouse, France |
Abstract
The latest developments conducted at CEA-INES on space compliant silicon-based heterojunction (SHJ) solar cells are reported in this paper. Through limited process adaptations, the overall integration remains very close to terrestrial configuration, allowing the cost-effective processing of such devices in existing production lines. Indeed, thinner 90 µm thick SHJ cells are firstly targeted (p-type Gallium-doped wafers), as a compromise between improved radiation hardness, reduced mass and improved flexibility at PhotoVoltaic Assembly (PVA) level, while taking into account production constraints. Furthermore, we demonstrate here the capability of such optimized SHJ devices to feature complete self-recovery from irradiation degradation under conditions representative of the space environment. Combined with already promising post-irradiation efficiencies, we thus demonstrate the high potential of SHJ to fulfill the growing demand in cost-effective and readily-available cells for space related applications.
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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.