Diagnosis of Perovskite Solar Cells Through Absolute Electroluminescence-Efficiency Measurements

Juanjuan Xue; Xiaobo Hu; Yixin Guo; Guoen Weng; Jinchun Jiang; Shaoqiang Chen; Ziqiang Zhu; Junhao Chu; Hidefumi Akiyama

doi:10.3389/fphy.2019.00166

Diagnosis of Perovskite Solar Cells Through Absolute Electroluminescence-Efficiency Measurements

Juanjuan Xue
, Xiaobo Hu
, Yixin Guo
, Guoen Weng
, Jinchun Jiang
, Shaoqiang Chen^*
, Ziqiang Zhu
, Junhao Chu
, Hidefumi Akiyama

^*Corresponding author for this work

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

2 Scopus citations

Abstract

Two organic-inorganic halide CH₃NH₃PbI₃ perovskite solar cells prepared in the same experimental batch but having different power conversion efficiencies −18.46% and 17.15%—were investigated based on the absolute electroluminescence (EL) efficiency measurements and traditional I-V measurements. The possible factors that affect the power conversion efficiency were also investigated. Comparing the experimental I-V curves of the two solar cells, it was found that the short-circuit currents (J_sc) were nearly the same; however, the open-circuit voltages (V_oc) were markedly different. Moreover, the deduced I-V curves from the absolute EL efficiencies of the two solar cells, which were mainly affected by the material quality, were almost the same, proving that the device processing technology has a vital effect on V_oc.

Original language	English
Article number	166
Journal	Frontiers in Physics
Volume	7
DOIs	https://doi.org/10.3389/fphy.2019.00166
State	Published - 30 Oct 2019

Keywords

CHNHPbI
absolute electroluminescence (EL) efficiency measurements
energy losses
perovskite
thin-film solar cell

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10.3389/fphy.2019.00166

Cite this

@article{950e96f300974ae485646b9b4f3ea07c,

title = "Diagnosis of Perovskite Solar Cells Through Absolute Electroluminescence-Efficiency Measurements",

abstract = "Two organic-inorganic halide CH3NH3PbI3 perovskite solar cells prepared in the same experimental batch but having different power conversion efficiencies −18.46\% and 17.15\%—were investigated based on the absolute electroluminescence (EL) efficiency measurements and traditional I-V measurements. The possible factors that affect the power conversion efficiency were also investigated. Comparing the experimental I-V curves of the two solar cells, it was found that the short-circuit currents (Jsc) were nearly the same; however, the open-circuit voltages (Voc) were markedly different. Moreover, the deduced I-V curves from the absolute EL efficiencies of the two solar cells, which were mainly affected by the material quality, were almost the same, proving that the device processing technology has a vital effect on Voc.",

keywords = "CHNHPbI, absolute electroluminescence (EL) efficiency measurements, energy losses, perovskite, thin-film solar cell",

author = "Juanjuan Xue and Xiaobo Hu and Yixin Guo and Guoen Weng and Jinchun Jiang and Shaoqiang Chen and Ziqiang Zhu and Junhao Chu and Hidefumi Akiyama",

note = "Publisher Copyright: {\textcopyright} Copyright {\textcopyright} 2019 Xue, Hu, Guo, Weng, Jiang, Chen, Zhu, Chu and Akiyama.",

year = "2019",

month = oct,

day = "30",

doi = "10.3389/fphy.2019.00166",

language = "英语",

volume = "7",

journal = "Frontiers in Physics",

issn = "2296-424X",

publisher = "Frontiers Media SA",

}

TY - JOUR

T1 - Diagnosis of Perovskite Solar Cells Through Absolute Electroluminescence-Efficiency Measurements

AU - Xue, Juanjuan

AU - Hu, Xiaobo

AU - Guo, Yixin

AU - Weng, Guoen

AU - Jiang, Jinchun

AU - Chen, Shaoqiang

AU - Zhu, Ziqiang

AU - Chu, Junhao

AU - Akiyama, Hidefumi

PY - 2019/10/30

Y1 - 2019/10/30

N2 - Two organic-inorganic halide CH3NH3PbI3 perovskite solar cells prepared in the same experimental batch but having different power conversion efficiencies −18.46% and 17.15%—were investigated based on the absolute electroluminescence (EL) efficiency measurements and traditional I-V measurements. The possible factors that affect the power conversion efficiency were also investigated. Comparing the experimental I-V curves of the two solar cells, it was found that the short-circuit currents (Jsc) were nearly the same; however, the open-circuit voltages (Voc) were markedly different. Moreover, the deduced I-V curves from the absolute EL efficiencies of the two solar cells, which were mainly affected by the material quality, were almost the same, proving that the device processing technology has a vital effect on Voc.

AB - Two organic-inorganic halide CH3NH3PbI3 perovskite solar cells prepared in the same experimental batch but having different power conversion efficiencies −18.46% and 17.15%—were investigated based on the absolute electroluminescence (EL) efficiency measurements and traditional I-V measurements. The possible factors that affect the power conversion efficiency were also investigated. Comparing the experimental I-V curves of the two solar cells, it was found that the short-circuit currents (Jsc) were nearly the same; however, the open-circuit voltages (Voc) were markedly different. Moreover, the deduced I-V curves from the absolute EL efficiencies of the two solar cells, which were mainly affected by the material quality, were almost the same, proving that the device processing technology has a vital effect on Voc.

KW - CHNHPbI

KW - absolute electroluminescence (EL) efficiency measurements

KW - energy losses

KW - perovskite

KW - thin-film solar cell

UR - https://www.scopus.com/pages/publications/85075244183

U2 - 10.3389/fphy.2019.00166

DO - 10.3389/fphy.2019.00166

M3 - 文章

AN - SCOPUS:85075244183

SN - 2296-424X

VL - 7

JO - Frontiers in Physics

JF - Frontiers in Physics

M1 - 166

ER -

Diagnosis of Perovskite Solar Cells Through Absolute Electroluminescence-Efficiency Measurements

Abstract

Keywords

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