Presentation Details
| Detailed investigation of the Performance of Low-Concentrator PV Receiver for Wireless Laser Power Transmission under Laboratory Conditions Alvaro Valera-Albacete1, Elvira Castillo-García1, Natalia Seoane2, Antonio García-Loureiro2, Florencia Almonacid1, Eduardo F.Fernández1. 1Advances in Photovoltaic Technology (AdPVTech), CEACTEMA, Universidad de Jaén, Jaen, Spain.2Centro Singular de Investigación en Tecnoloxías de Información (CiTiUS), Universid de de Santiago, Santiago de Compostela, Spain |
Abstract
This work presents the analysis of a low-concentrator photovoltaic (LCPV) receiver for Wireless Laser Power Transmission (WLPT), illuminated by an 808 nm laser and coupled through a crossed compound parabolic concentrator (CCPC). The receiver integrates a 3×3 array of c-Si IBC solar cells and operates under highly non-uniform Gaussian irradiance. Optical, thermal, and electrical characterizations were performed to quantify irradiance distribution, angular tolerance, and mismatch effects. The results show strong photocurrent dispersion, while Voc and FF remain relatively uniform. Several interconnection schemes were analysed, with a current-homogeneous Ring configuration achieving <2% mismatch—effectively matching the ideal independent-cell scenario—whereas series and parallel layouts experienced substantial losses. The measured optical-to-electrical conversion efficiency reached 15.6–16.3% at 806 nm, approaching the theoretical 17.8–18.4% limit associated with the optimum wavelength (~955 nm).
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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.
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