Room-temperature mixed-solvent-vapor annealing for high performance perovskite solar cells

In this paper, we introduce a room-temperature mixed-solvent-vapor annealing (rtMSVA) method to fabricate high performance perovskite solar cells (pero-SCs) based on MAPbI3-xClx without the need for thermal annealing (TA). An ultra-smooth perovskite thin-film with high crystallinity was obtained by...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2016-01, Vol.4 (1), p.321-326
Main Authors: Yu, Hao, Liu, Xiaodong, Xia, Yijun, Dong, Qingqing, Zhang, Kaicheng, Wang, Zhaowei, Zhou, Yi, Song, Bo, Li, Yongfang
Format: Article
Language:English
Subjects:
Annealing
Crystallinity
Electrodes
Energy conversion efficiency
Perovskites
Photovoltaic cells
Solar cells
Thin films
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Summary:In this paper, we introduce a room-temperature mixed-solvent-vapor annealing (rtMSVA) method to fabricate high performance perovskite solar cells (pero-SCs) based on MAPbI3-xClx without the need for thermal annealing (TA). An ultra-smooth perovskite thin-film with high crystallinity was obtained by the DMF/CB mixed-solvent (1 : 20, v/v) vapor annealing at room-temperature without TA and the power conversion efficiency (PCE) of the pero-SCs reached 16.4%. More importantly, the reproducibility of the PCEs is quite good among 40 different devices. Furthermore, large active area pero-SCs were fabricated with the rtMSVA method. The PCEs of the pero-SCs based on ITO and flexible PET/Ag mesh electrodes with an active area of 1.21 cm2 reached 11.01% and 7.5%, respectively. We anticipate that rtMSVA would very possibly become a promising crystallization method for the fabrication of large area pero-SCs in the near future.
ISSN:2050-7488
2050-7496
DOI:10.1039/c5ta08565a