The Way to Pursue Truly High-Performance Perovskite Solar Cells

Wu, Jia-Ren; Thakur, Diksha; Chiang, Shou-En; Chandel, Anjali; Wang, Jyh-Shyang; Chiu, Kuan-Cheng; Chang, Sheng Hsiung

doi:10.3390/nano9091269

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The Way to Pursue Truly High-Performance Perovskite Solar Cells

by

Jia-Ren Wu

^1,†,

Diksha Thakur

^1,†,

Shou-En Chiang

¹,

Anjali Chandel

¹,

Jyh-Shyang Wang

^1,2,

Kuan-Cheng Chiu

^1,2 and

Sheng Hsiung Chang

^1,2,*

¹

Department of Physics, Chung Yuan Christian University, Taoyuan32023, Taiwan

²

Center for Nano Technology, Chung Yuan Christian University, Taoyuan 32023, Taiwan

^*

Author to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Nanomaterials 2019, 9(9), 1269; https://doi.org/10.3390/nano9091269

Submission received: 16 August 2019 / Revised: 2 September 2019 / Accepted: 3 September 2019 / Published: 5 September 2019

(This article belongs to the Special Issue Advances in Emerging Solar Cells)

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Abstract

The power conversion efficiency (PCE) of single-junction solar cells was theoretically predicted to be limited by the Shockley–Queisser limit due to the intrinsic potential loss of the photo-excited electrons in the light absorbing materials. Up to now, the optimized GaAs solar cell has the highest PCE of 29.1%, which is close to the theoretical limit of ~33%. To pursue the perfect photovoltaic performance, it is necessary to extend the lifetimes of the photo-excited carriers (hot electrons and hot holes) and to collect the hot carriers without potential loss. Thanks to the long-lived hot carriers in perovskite crystal materials, it is possible to completely convert the photon energy to electrical power when the hot electrons and hot holes can freely transport in the quantized energy levels of the electron transport layer and hole transport layer, respectively. In order to achieve the ideal PCE, the interactions between photo-excited carriers and phonons in perovskite solar cells has to be completely understood.

Keywords: perovskite solar cells; hot-carrier characteristics; quantized electron transport layer; quantized hole transport layer

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MDPI and ACS Style

Wu, J.-R.; Thakur, D.; Chiang, S.-E.; Chandel, A.; Wang, J.-S.; Chiu, K.-C.; Chang, S.H. The Way to Pursue Truly High-Performance Perovskite Solar Cells. Nanomaterials 2019, 9, 1269. https://doi.org/10.3390/nano9091269

AMA Style

Wu J-R, Thakur D, Chiang S-E, Chandel A, Wang J-S, Chiu K-C, Chang SH. The Way to Pursue Truly High-Performance Perovskite Solar Cells. Nanomaterials. 2019; 9(9):1269. https://doi.org/10.3390/nano9091269

Chicago/Turabian Style

Wu, Jia-Ren, Diksha Thakur, Shou-En Chiang, Anjali Chandel, Jyh-Shyang Wang, Kuan-Cheng Chiu, and Sheng Hsiung Chang. 2019. "The Way to Pursue Truly High-Performance Perovskite Solar Cells" Nanomaterials 9, no. 9: 1269. https://doi.org/10.3390/nano9091269

APA Style

Wu, J.-R., Thakur, D., Chiang, S.-E., Chandel, A., Wang, J.-S., Chiu, K.-C., & Chang, S. H. (2019). The Way to Pursue Truly High-Performance Perovskite Solar Cells. Nanomaterials, 9(9), 1269. https://doi.org/10.3390/nano9091269

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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