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Issue 1, 2016
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Room-temperature mixed-solvent-vapor annealing for high performance perovskite solar cells

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Abstract

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.

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

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Publication details

The article was received on 25 Oct 2015, accepted on 16 Nov 2015 and first published on 18 Nov 2015


Article type: Paper
DOI: 10.1039/C5TA08565A
J. Mater. Chem. A, 2016,4, 321-326

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

    H. Yu, X. Liu, Y. Xia, Q. Dong, K. Zhang, Z. Wang, Y. Zhou, B. Song and Y. Li, J. Mater. Chem. A, 2016, 4, 321
    DOI: 10.1039/C5TA08565A

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