Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells

Tongle Bu, Lan Wu, Xueping Liu, Xiaokun Yang, Peng Zhou, Xinxin Yu, Tianshi Qin, Jiangjian Shi, Song Wang, Saisai Li, Zhiliang Ku, Yong Peng, Fuzhi Huang, Qingbo Meng, Yi-Bing Cheng, Jie Zhong*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

73 Citations (Scopus)

Abstract

Organic-inorganic hybrid halide perovskite solar cells (PSCs) have recently drawn enormous attentions due to their impressive performance (>22%) and low temperature solution processability (<150 °C). Current solution process involves application of a large amount of toxic solvents, such as chlorobenzene, which is heavily employed in both the perovskite layer and the hole transport layer (HTL) deposition. Herein, this study employs green solvent of ethyl acetate for engineering efficient perovskite and HTL layers, which enables a synergic interface (perovskite/HTL) optimization. A champion efficiency of 19.43% is obtained for small cells (0.16 cm2 with mask) and over 14% for large size modules (5 × 5 cm2). The PSCs prepared from the green solvent engineering demonstrate superior performance on both efficiency and stability over their chlorobenzene counterparts. These enhancements are ascribed to the in situ inhibition on carrier recombination induced by interfacial defects during the solution processing, which enables about 2/3 reduction of calculated recombination rate. Thus, the green solvent route shows the great potential toward environmental-friendly manufacturing.

Original languageEnglish
Article number1700576
Number of pages10
JournalAdvanced Energy Materials
Volume7
Issue number20
DOIs
Publication statusPublished - 25 Oct 2017

Keywords

  • Green solvents
  • Interface optimization
  • Large size modules
  • Mixed perovskite
  • Spiro-OMeTAD

Cite this

Bu, Tongle ; Wu, Lan ; Liu, Xueping ; Yang, Xiaokun ; Zhou, Peng ; Yu, Xinxin ; Qin, Tianshi ; Shi, Jiangjian ; Wang, Song ; Li, Saisai ; Ku, Zhiliang ; Peng, Yong ; Huang, Fuzhi ; Meng, Qingbo ; Cheng, Yi-Bing ; Zhong, Jie. / Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells. In: Advanced Energy Materials. 2017 ; Vol. 7, No. 20.
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title = "Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells",
abstract = "Organic-inorganic hybrid halide perovskite solar cells (PSCs) have recently drawn enormous attentions due to their impressive performance (>22{\%}) and low temperature solution processability (<150 °C). Current solution process involves application of a large amount of toxic solvents, such as chlorobenzene, which is heavily employed in both the perovskite layer and the hole transport layer (HTL) deposition. Herein, this study employs green solvent of ethyl acetate for engineering efficient perovskite and HTL layers, which enables a synergic interface (perovskite/HTL) optimization. A champion efficiency of 19.43{\%} is obtained for small cells (0.16 cm2 with mask) and over 14{\%} for large size modules (5 × 5 cm2). The PSCs prepared from the green solvent engineering demonstrate superior performance on both efficiency and stability over their chlorobenzene counterparts. These enhancements are ascribed to the in situ inhibition on carrier recombination induced by interfacial defects during the solution processing, which enables about 2/3 reduction of calculated recombination rate. Thus, the green solvent route shows the great potential toward environmental-friendly manufacturing.",
keywords = "Green solvents, Interface optimization, Large size modules, Mixed perovskite, Spiro-OMeTAD",
author = "Tongle Bu and Lan Wu and Xueping Liu and Xiaokun Yang and Peng Zhou and Xinxin Yu and Tianshi Qin and Jiangjian Shi and Song Wang and Saisai Li and Zhiliang Ku and Yong Peng and Fuzhi Huang and Qingbo Meng and Yi-Bing Cheng and Jie Zhong",
year = "2017",
month = "10",
day = "25",
doi = "10.1002/aenm.201700576",
language = "English",
volume = "7",
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Bu, T, Wu, L, Liu, X, Yang, X, Zhou, P, Yu, X, Qin, T, Shi, J, Wang, S, Li, S, Ku, Z, Peng, Y, Huang, F, Meng, Q, Cheng, Y-B & Zhong, J 2017, 'Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells', Advanced Energy Materials, vol. 7, no. 20, 1700576. https://doi.org/10.1002/aenm.201700576

Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells. / Bu, Tongle; Wu, Lan; Liu, Xueping; Yang, Xiaokun; Zhou, Peng; Yu, Xinxin; Qin, Tianshi; Shi, Jiangjian; Wang, Song; Li, Saisai; Ku, Zhiliang; Peng, Yong; Huang, Fuzhi; Meng, Qingbo; Cheng, Yi-Bing; Zhong, Jie.

In: Advanced Energy Materials, Vol. 7, No. 20, 1700576, 25.10.2017.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells

AU - Bu, Tongle

AU - Wu, Lan

AU - Liu, Xueping

AU - Yang, Xiaokun

AU - Zhou, Peng

AU - Yu, Xinxin

AU - Qin, Tianshi

AU - Shi, Jiangjian

AU - Wang, Song

AU - Li, Saisai

AU - Ku, Zhiliang

AU - Peng, Yong

AU - Huang, Fuzhi

AU - Meng, Qingbo

AU - Cheng, Yi-Bing

AU - Zhong, Jie

PY - 2017/10/25

Y1 - 2017/10/25

N2 - Organic-inorganic hybrid halide perovskite solar cells (PSCs) have recently drawn enormous attentions due to their impressive performance (>22%) and low temperature solution processability (<150 °C). Current solution process involves application of a large amount of toxic solvents, such as chlorobenzene, which is heavily employed in both the perovskite layer and the hole transport layer (HTL) deposition. Herein, this study employs green solvent of ethyl acetate for engineering efficient perovskite and HTL layers, which enables a synergic interface (perovskite/HTL) optimization. A champion efficiency of 19.43% is obtained for small cells (0.16 cm2 with mask) and over 14% for large size modules (5 × 5 cm2). The PSCs prepared from the green solvent engineering demonstrate superior performance on both efficiency and stability over their chlorobenzene counterparts. These enhancements are ascribed to the in situ inhibition on carrier recombination induced by interfacial defects during the solution processing, which enables about 2/3 reduction of calculated recombination rate. Thus, the green solvent route shows the great potential toward environmental-friendly manufacturing.

AB - Organic-inorganic hybrid halide perovskite solar cells (PSCs) have recently drawn enormous attentions due to their impressive performance (>22%) and low temperature solution processability (<150 °C). Current solution process involves application of a large amount of toxic solvents, such as chlorobenzene, which is heavily employed in both the perovskite layer and the hole transport layer (HTL) deposition. Herein, this study employs green solvent of ethyl acetate for engineering efficient perovskite and HTL layers, which enables a synergic interface (perovskite/HTL) optimization. A champion efficiency of 19.43% is obtained for small cells (0.16 cm2 with mask) and over 14% for large size modules (5 × 5 cm2). The PSCs prepared from the green solvent engineering demonstrate superior performance on both efficiency and stability over their chlorobenzene counterparts. These enhancements are ascribed to the in situ inhibition on carrier recombination induced by interfacial defects during the solution processing, which enables about 2/3 reduction of calculated recombination rate. Thus, the green solvent route shows the great potential toward environmental-friendly manufacturing.

KW - Green solvents

KW - Interface optimization

KW - Large size modules

KW - Mixed perovskite

KW - Spiro-OMeTAD

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U2 - 10.1002/aenm.201700576

DO - 10.1002/aenm.201700576

M3 - Article

AN - SCOPUS:85024364031

VL - 7

JO - Advanced Energy Materials

JF - Advanced Energy Materials

SN - 1614-6832

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