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Issue 24, 2016
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Optical analysis of perovskite/silicon tandem solar cells

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Abstract

Semi-transparent perovskite solar cells have significant potential as the top cell in a tandem structure with silicon (Si) or copper indium gallium selenide (CIGS) as the bottom cell. The efficiency of such tandem cells depends on careful light management and optical design of the device. Here, using the transfer matrix method, we report a detailed optical analysis of the absorption distribution, parasitic absorption and reflection losses in various semi-transparent perovskite solar cell structures and their impact on tandem cell efficiencies. The optical properties of some key layers of a semi perovskite cell are measured and modelled to facilitate the optical analysis. It is found that the encapsulation glass and the absorption in the transparent conductive electrode have a huge impact on the tandem efficiency. The tandem efficiency limit is also calculated to present the design of a two-terminal current-matched tandem device required to achieve 30% conversion efficiency. This work provides directions for further improving the power conversion efficiency of perovskite/Si tandem cells.

Graphical abstract: Optical analysis of perovskite/silicon tandem solar cells

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Supplementary files

Article information


Submitted
29 Mar 2016
Accepted
09 May 2016
First published
10 May 2016

J. Mater. Chem. C, 2016,4, 5679-5689
Article type
Paper

Optical analysis of perovskite/silicon tandem solar cells

Y. Jiang, I. Almansouri, S. Huang, T. Young, Y. Li, Y. Peng, Q. Hou, L. Spiccia, U. Bach, Y. Cheng, M. A. Green and A. Ho-Baillie, J. Mater. Chem. C, 2016, 4, 5679
DOI: 10.1039/C6TC01276K

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