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

研究成果: 雜誌貢獻文章

3 引文 (Scopus)

摘要

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.
原文英語
頁(從 - 到)118-129
頁數12
期刊Electrochimica Acta
266
DOIs
出版狀態已發佈 - 三月 10 2018
對外發佈Yes

指紋

Dimethyl Sulfoxide
Crystallization
Crystal growth
Perovskite
Perovskite solar cells
Carrier lifetime
Iodides
Charge carriers
Light absorption
Conversion efficiency
Lead
Chemical analysis

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

引用此文

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; Wei, Tzu Chien; Lu, Shih Yuan.

於: Electrochimica Acta, 卷 266, 10.03.2018, p. 118-129.

研究成果: 雜誌貢獻文章

Kwang, Zai wen ; Chang, Chih Wen ; Hsieh, Tsung Yu ; Wei, Tzu Chien ; Lu, Shih Yuan. / Solvent-modulated reaction between mesoporous PbI 2 film and CH 3 NH 3 I for enhancement of photovoltaic performances of perovskite solar cells. 於: Electrochimica Acta. 2018 ; 卷 266. 頁 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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