Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency

Li, Hang; Zhou, Junjie; Tan, Liguo; Li, Minghao; Jiang, Chaofan; Wang, Siyang; Zhao, Xing; Liu, Yue; Zhang, Yu; Ye, Yiran; Tress, Wolfgang; Yi, Chenyi

doi:10.1126/sciadv.abo7422

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-26606

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency
Authors:	Li, Hang Zhou, Junjie Tan, Liguo Li, Minghao Jiang, Chaofan Wang, Siyang Zhao, Xing Liu, Yue Zhang, Yu Ye, Yiran Tress, Wolfgang Yi, Chenyi
et. al:	No
DOI:	10.1126/sciadv.abo7422 10.21256/zhaw-26606
Published in:	Science Advances
Volume(Issue):	8
Issue:	28
Page(s):	eabo7422
Issue Date:	15-Jul-2022
Publisher / Ed. Institution:	AAAS
ISSN:	2375-2548
Language:	English
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	Vacuum evaporation is promising for the high-throughput fabrication of perovskite solar cells (PSCs) because of its solvent-free characteristic, precise control of film thickness, and compatibility with large-scale production. Nevertheless, the power conversion efficiency (PCE) of PSCs fabricated by vacuum evaporation lags behind that of solution-processed PSCs. Here, we report a Cl-containing alloy-mediated sequential vacuum evaporation approach to fabricate perovskite films. The presence of Cl in the alloy facilitates organic ammonium halide diffusion and the subsequent perovskite conversion reaction, leading to homogeneous pinhole-free perovskite films with few defects. The resulting PSCs yield a PCE of 24.42%, 23.44% (certified 22.6%), and 19.87% for 0.1, 1.0, and 14.4 square centimeters (mini-module, aperture area), respectively. The unencapsulated PSCs show good stability with negligible decline in performance after storage in dry air for more than 4000 hours. Our method provides a reproducible approach for scalable fabrication of large-area, high-efficiency PSCs and other perovskite-based optoelectronics.
URI:	https://digitalcollection.zhaw.ch/handle/11475/26606
Fulltext version:	Published version
License (according to publishing contract):	CC BY-NC 4.0: Attribution - Non commercial 4.0 International
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Li, H., Zhou, J., Tan, L., Li, M., Jiang, C., Wang, S., Zhao, X., Liu, Y., Zhang, Y., Ye, Y., Tress, W., & Yi, C. (2022). Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency. Science Advances, 8(28), eabo7422. https://doi.org/10.1126/sciadv.abo7422

Li, H. et al. (2022) ‘Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency’, Science Advances, 8(28), p. eabo7422. Available at: https://doi.org/10.1126/sciadv.abo7422.

H. Li et al., “Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency,” Science Advances, vol. 8, no. 28, p. eabo7422, Jul. 2022, doi: 10.1126/sciadv.abo7422.

LI, Hang, Junjie ZHOU, Liguo TAN, Minghao LI, Chaofan JIANG, Siyang WANG, Xing ZHAO, Yue LIU, Yu ZHANG, Yiran YE, Wolfgang TRESS und Chenyi YI, 2022. Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency. Science Advances. 15 Juli 2022. Bd. 8, Nr. 28, S. eabo7422. DOI 10.1126/sciadv.abo7422

Li, Hang, Junjie Zhou, Liguo Tan, Minghao Li, Chaofan Jiang, Siyang Wang, Xing Zhao, et al. 2022. “Sequential Vacuum-Evaporated Perovskite Solar Cells with More than 24% Efficiency.” Science Advances 8 (28): eabo7422. https://doi.org/10.1126/sciadv.abo7422.

Li, Hang, et al. “Sequential Vacuum-Evaporated Perovskite Solar Cells with More than 24% Efficiency.” Science Advances, vol. 8, no. 28, July 2022, p. eabo7422, https://doi.org/10.1126/sciadv.abo7422.