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Issue 9, 2017
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Peroptronic devices: perovskite-based light-emitting solar cells

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Abstract

Solution processed perovskite semiconductors have developed rapidly over the past decade to yield excellent performance in both solar cell and light emitting diode devices. Both of these device types are prepared using similar materials and architectures, raising the possibility of perovskite based light emitting solar cells. Recent reports have indicated that some low band gap perovskite solar cells are able to emit infrared light efficiently, however, intermediate band gap perovskite solar cells which emit visible light have not, to the best of our knowledge been deliberately designed or extensively characterized. In this work, we have investigated the use of different electron transport layers in order to minimize energetic barriers to electron injection and extraction in methylammonium lead bromide (MAPbBr3) films. We demonstrate that through appropriate band structure engineering, MAPbBr3 can be used to make such “peroptronic” light-emitting solar cells, which simultaneously exhibit efficient solar cell power conversion efficiencies over 1% and 0.43 lm W−1 green light emission.

Graphical abstract: Peroptronic devices: perovskite-based light-emitting solar cells

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Supplementary files

Article information


Submitted
15 Jun 2017
Accepted
10 Aug 2017
First published
10 Aug 2017

Energy Environ. Sci., 2017,10, 1950-1957
Article type
Communication

Peroptronic devices: perovskite-based light-emitting solar cells

H. Kim, Y. J. Yoon, J. Jeong, J. Heo, H. Jang, J. H. Seo, B. Walker and J. Y. Kim, Energy Environ. Sci., 2017, 10, 1950
DOI: 10.1039/C7EE01666B

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