Light Management

Light management of tandem solar cells on nanostructured substrates

[+] Author Affiliations
Alan H. Chin, Majid Keshavarz

nLiten Energy Corporation, Mountain View, California, United States

Guo Wang, Rosaline Yu, Xinwei Niu, Liyou Yang

Astronergy, Hangzhou, Zhejiang Province, China

J. Photon. Energy. 7(2), 027001 (May 10, 2017). doi:10.1117/1.JPE.7.027001
History: Received December 12, 2016; Accepted April 17, 2017
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Abstract.  We report the use of nanostructured substrates as a simple approach to improve the performance of tandem micromorph silicon solar cells. In the proposed approach, nanostructured substrates are produced using a low-cost, self-assembled growth process. The use of a nanostructured substrate coated with a thick transparent conductive oxide electrode layer enables the conformal deposition of the tandem solar cell absorber layers while allowing the solar cell to exhibit a modified surface morphology caused by the underlying nanostructured morphology. Using this nanostructured substrate approach, we demonstrated a 78% relative enhancement in the conversion efficiency of a tandem micromorph silicon cell on a nanostructured substrate compared to a standard tandem micromorph cell deposited onto a flat substrate.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Alan H. Chin ; Majid Keshavarz ; Guo Wang ; Rosaline Yu ; Xinwei Niu, et al.
"Light management of tandem solar cells on nanostructured substrates", J. Photon. Energy. 7(2), 027001 (May 10, 2017). ; http://dx.doi.org/10.1117/1.JPE.7.027001


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