Solvent-modulated reaction between mesoporous PbI                        2                         film and CH                        3                        NH                        3                        I for enhancement of photovoltaic performances of perovskite solar cells

Zai wen Kwang; Chih Wen Chang; Tsung Yu Hsieh; Tzu Chien Wei; Shih Yuan Lu

doi:10.1016/j.electacta.2018.02.026

Solvent-modulated reaction between mesoporous PbI ₂ film and CH ₃ NH ₃ I for enhancement of photovoltaic performances of perovskite solar cells

Zai wen Kwang, Chih Wen Chang, Tsung Yu Hsieh, Tzu Chien Wei, Shih Yuan Lu

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Solvent engineering with dimethylsulfoxide (DMSO) has been shown to achieve high quality methylammonium lead iodide (MAPbI ₃ ) films for high performance perovskite solar cells (PSC). The morphology and composition of the intermediate PbI ₂ -DMSO films play the key role for the success. The coordination and crystal growth of the PbI ₂ –DMSO film however remain un-exploited. We study the way and extent of DMSO coordination and subsequent crystal growth of the PbI ₂ -DMSO film to fabricate high quality perovskite films for enhancement of the photovoltaic performances of the cells. The DMSO is pre-coordinated or coordinated in-situ with PbI ₂ at a 1:1 or 2:1 M ratio. The PbI ₂ -DMSO film from pre-coordination at 1:1 M ratio gives perovskite films of the best quality, being dense and possessing uniform size grains, high light absorption, and long charge carrier life times, among all investigated. The champion PSC achieves a high power conversion efficiency of 15.2%, significantly outperforming 13.0% of PSC based on PbI ₂ -DMSO films from in-situ coordination at 1:1 M ratio, and 11.7% of PSC based on plain PbI ₂ films.

Original language	English
Pages (from-to)	118-129
Number of pages	12
Journal	Electrochimica Acta
Volume	266
DOIs	https://doi.org/10.1016/j.electacta.2018.02.026
Publication status	Published - Mar 10 2018
Externally published	Yes

Keywords

DMSO coordination
Mesoporous PbI2
Perovskite solar cell
Solvent engineering

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.electacta.2018.02.026

Cite this

Kwang, Z. W., Chang, C. W., Hsieh, T. Y., Wei, T. C., & Lu, S. Y. (2018). Solvent-modulated reaction between mesoporous PbI ₂ film and CH ₃ NH ₃ I for enhancement of photovoltaic performances of perovskite solar cells. Electrochimica Acta, 266, 118-129. https://doi.org/10.1016/j.electacta.2018.02.026

Solvent-modulated reaction between mesoporous PbI ₂ film and CH ₃ NH ₃ I for enhancement of photovoltaic performances of perovskite solar cells. / Kwang, Zai wen; Chang, Chih Wen; Hsieh, Tsung Yu et al.
In: Electrochimica Acta, Vol. 266, 10.03.2018, p. 118-129.

Research output: Contribution to journal › Article › peer-review

Kwang, ZW, Chang, CW, Hsieh, TY, Wei, TC & Lu, SY 2018, 'Solvent-modulated reaction between mesoporous PbI ₂ film and CH ₃ NH ₃ I for enhancement of photovoltaic performances of perovskite solar cells', Electrochimica Acta, vol. 266, pp. 118-129. https://doi.org/10.1016/j.electacta.2018.02.026

Kwang ZW, Chang CW, Hsieh TY, Wei TC, Lu SY. Solvent-modulated reaction between mesoporous PbI ₂ film and CH ₃ NH ₃ I for enhancement of photovoltaic performances of perovskite solar cells. Electrochimica Acta. 2018 Mar 10;266:118-129. doi: 10.1016/j.electacta.2018.02.026

Kwang, Zai wen ; Chang, Chih Wen ; Hsieh, Tsung Yu et al. / Solvent-modulated reaction between mesoporous PbI ₂ film and CH ₃ NH ₃ I for enhancement of photovoltaic performances of perovskite solar cells. In: Electrochimica Acta. 2018 ; Vol. 266. pp. 118-129.

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abstract = " Solvent engineering with dimethylsulfoxide (DMSO) has been shown to achieve high quality methylammonium lead iodide (MAPbI 3 ) films for high performance perovskite solar cells (PSC). The morphology and composition of the intermediate PbI 2 -DMSO films play the key role for the success. The coordination and crystal growth of the PbI 2 –DMSO film however remain un-exploited. We study the way and extent of DMSO coordination and subsequent crystal growth of the PbI 2 -DMSO film to fabricate high quality perovskite films for enhancement of the photovoltaic performances of the cells. The DMSO is pre-coordinated or coordinated in-situ with PbI 2 at a 1:1 or 2:1 M ratio. The PbI 2 -DMSO film from pre-coordination at 1:1 M ratio gives perovskite films of the best quality, being dense and possessing uniform size grains, high light absorption, and long charge carrier life times, among all investigated. The champion PSC achieves a high power conversion efficiency of 15.2%, significantly outperforming 13.0% of PSC based on PbI 2 -DMSO films from in-situ coordination at 1:1 M ratio, and 11.7% of PSC based on plain PbI 2 films. ",

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