Effective Improvement of the Photovoltaic Performance of Carbon-Based Perovskite Solar Cells by Additional Solvents

Chenxi Zhang; Yudan Luo; Xiaohong Chen; Yiwei Chen; Zhuo Sun; Sumei Huang

doi:10.1007/s40820-016-0094-4

Effective Improvement of the Photovoltaic Performance of Carbon-Based Perovskite Solar Cells by Additional Solvents

Chenxi Zhang, Yudan Luo, Xiaohong Chen, Yiwei Chen, Zhuo Sun, Sumei Huang^*

^*Corresponding author for this work

East China Normal University

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

76 Scopus citations

Abstract

Abstract: A solvent-assisted methodology has been developed to synthesize CH₃NH₃PbI₃ perovskite absorber layers. It involved the use of a mixed solvent of CH₃NH₃I, PbI₂, γ-butyrolactone, and dimethyl sulfoxide (DMSO) followed by the addition of chlorobenzene (CB). The method produced ultra-flat and dense perovskite capping layers atop mesoporous TiO₂ films, enabling a remarkable improvement in the performance of free hole transport material (HTM) carbon electrode-based perovskite solar cells (PSCs). Toluene (TO) was also studied as an additional solvent for comparison. At the annealing temperature of 100 °C, the fabricated HTM-free PSCs based on drop-casting CB demonstrated power conversion efficiency (PCE) of 9.73 %, which is 36 and 71 % higher than those fabricated from the perovskite films using TO or without adding an extra solvent, respectively. The interaction between the PbI₂–DMSO–CH₃NH₃I intermediate phase and the additional solvent was discussed. Furthermore, the influence of the annealing temperature on the absorber film formation, morphology, and crystalline structure was investigated and correlated with the photovoltaic performance. Highly efficient, simple, and stable HTM-free solar cells with a PCE of 11.44 % were prepared utilizing the optimum perovskite absorbers annealed at 120 °C. Graphical Abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	347-357
Number of pages	11
Journal	Nano-Micro Letters
Volume	8
Issue number	4
DOIs	https://doi.org/10.1007/s40820-016-0094-4
State	Published - 1 Oct 2016
Externally published	Yes

Keywords

Carbon counter electrode
Free hole transporting material
Halide perovskite
Solar cell
Spin-coating

UN SDGs

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

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10.1007/s40820-016-0094-4

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title = "Effective Improvement of the Photovoltaic Performance of Carbon-Based Perovskite Solar Cells by Additional Solvents",

abstract = "Abstract: A solvent-assisted methodology has been developed to synthesize CH3NH3PbI3 perovskite absorber layers. It involved the use of a mixed solvent of CH3NH3I, PbI2, γ-butyrolactone, and dimethyl sulfoxide (DMSO) followed by the addition of chlorobenzene (CB). The method produced ultra-flat and dense perovskite capping layers atop mesoporous TiO2 films, enabling a remarkable improvement in the performance of free hole transport material (HTM) carbon electrode-based perovskite solar cells (PSCs). Toluene (TO) was also studied as an additional solvent for comparison. At the annealing temperature of 100 °C, the fabricated HTM-free PSCs based on drop-casting CB demonstrated power conversion efficiency (PCE) of 9.73 \%, which is 36 and 71 \% higher than those fabricated from the perovskite films using TO or without adding an extra solvent, respectively. The interaction between the PbI2–DMSO–CH3NH3I intermediate phase and the additional solvent was discussed. Furthermore, the influence of the annealing temperature on the absorber film formation, morphology, and crystalline structure was investigated and correlated with the photovoltaic performance. Highly efficient, simple, and stable HTM-free solar cells with a PCE of 11.44 \% were prepared utilizing the optimum perovskite absorbers annealed at 120 °C. Graphical Abstract: [Figure not available: see fulltext.]",

keywords = "Carbon counter electrode, Free hole transporting material, Halide perovskite, Solar cell, Spin-coating",

author = "Chenxi Zhang and Yudan Luo and Xiaohong Chen and Yiwei Chen and Zhuo Sun and Sumei Huang",

note = "Publisher Copyright: {\textcopyright} 2016, The Author(s).",

year = "2016",

month = oct,

day = "1",

doi = "10.1007/s40820-016-0094-4",

language = "英语",

volume = "8",

pages = "347--357",

journal = "Nano-Micro Letters",

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TY - JOUR

T1 - Effective Improvement of the Photovoltaic Performance of Carbon-Based Perovskite Solar Cells by Additional Solvents

AU - Zhang, Chenxi

AU - Luo, Yudan

AU - Chen, Xiaohong

AU - Chen, Yiwei

AU - Sun, Zhuo

AU - Huang, Sumei

PY - 2016/10/1

Y1 - 2016/10/1

N2 - Abstract: A solvent-assisted methodology has been developed to synthesize CH3NH3PbI3 perovskite absorber layers. It involved the use of a mixed solvent of CH3NH3I, PbI2, γ-butyrolactone, and dimethyl sulfoxide (DMSO) followed by the addition of chlorobenzene (CB). The method produced ultra-flat and dense perovskite capping layers atop mesoporous TiO2 films, enabling a remarkable improvement in the performance of free hole transport material (HTM) carbon electrode-based perovskite solar cells (PSCs). Toluene (TO) was also studied as an additional solvent for comparison. At the annealing temperature of 100 °C, the fabricated HTM-free PSCs based on drop-casting CB demonstrated power conversion efficiency (PCE) of 9.73 %, which is 36 and 71 % higher than those fabricated from the perovskite films using TO or without adding an extra solvent, respectively. The interaction between the PbI2–DMSO–CH3NH3I intermediate phase and the additional solvent was discussed. Furthermore, the influence of the annealing temperature on the absorber film formation, morphology, and crystalline structure was investigated and correlated with the photovoltaic performance. Highly efficient, simple, and stable HTM-free solar cells with a PCE of 11.44 % were prepared utilizing the optimum perovskite absorbers annealed at 120 °C. Graphical Abstract: [Figure not available: see fulltext.]

AB - Abstract: A solvent-assisted methodology has been developed to synthesize CH3NH3PbI3 perovskite absorber layers. It involved the use of a mixed solvent of CH3NH3I, PbI2, γ-butyrolactone, and dimethyl sulfoxide (DMSO) followed by the addition of chlorobenzene (CB). The method produced ultra-flat and dense perovskite capping layers atop mesoporous TiO2 films, enabling a remarkable improvement in the performance of free hole transport material (HTM) carbon electrode-based perovskite solar cells (PSCs). Toluene (TO) was also studied as an additional solvent for comparison. At the annealing temperature of 100 °C, the fabricated HTM-free PSCs based on drop-casting CB demonstrated power conversion efficiency (PCE) of 9.73 %, which is 36 and 71 % higher than those fabricated from the perovskite films using TO or without adding an extra solvent, respectively. The interaction between the PbI2–DMSO–CH3NH3I intermediate phase and the additional solvent was discussed. Furthermore, the influence of the annealing temperature on the absorber film formation, morphology, and crystalline structure was investigated and correlated with the photovoltaic performance. Highly efficient, simple, and stable HTM-free solar cells with a PCE of 11.44 % were prepared utilizing the optimum perovskite absorbers annealed at 120 °C. Graphical Abstract: [Figure not available: see fulltext.]

KW - Carbon counter electrode

KW - Free hole transporting material

KW - Halide perovskite

KW - Solar cell

KW - Spin-coating

UR - https://www.scopus.com/pages/publications/84979683949

U2 - 10.1007/s40820-016-0094-4

DO - 10.1007/s40820-016-0094-4

M3 - 文章

AN - SCOPUS:84979683949

SN - 2311-6706

VL - 8

SP - 347

EP - 357

JO - Nano-Micro Letters

JF - Nano-Micro Letters

IS - 4

ER -

Effective Improvement of the Photovoltaic Performance of Carbon-Based Perovskite Solar Cells by Additional Solvents

Abstract

Keywords

UN SDGs

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