Ternary Organic Solar Cells with Small Nonradiative Recombination Loss

Yuanpeng Xie; Tengfei Li; Jing Guo; Pengqing Bi; Xiaonan Xue; Hwa Sook Ryu; Yunhao Cai; Jie Min; Lijun Huo; Xiaotao Hao; Han Young Woo; Xiaowei Zhan; Yanming Sun

doi:10.1021/acsenergylett.9b00681

Ternary Organic Solar Cells with Small Nonradiative Recombination Loss

Yuanpeng Xie
, Tengfei Li
, Jing Guo
, Pengqing Bi
, Xiaonan Xue
, Hwa Sook Ryu
, Yunhao Cai
, Jie Min^*
, Lijun Huo
, Xiaotao Hao
, Han Young Woo
, Xiaowei Zhan
, Yanming Sun

^*Corresponding author for this work

School of Chemistry

Beihang University
Peking University
Wuhan University
Shandong University
Korea University

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

116 Scopus citations

Abstract

Nonradiative recombination loss (qΔVocnonrad), as a large component of energy loss (E_loss), has become an important factor that limits the power conversion efficiency (PCE) of organic solar cells (OSCs). Herein, high-performance ternary OSCs based on a polymer donor PTB7-Th, a polymer donor PBDTm-T1, and a nonfullerene acceptor FOIC are reported. When blended with FOIC, the PBDTm-T1-based device yielded a smallest qΔVocnonrad of 0.197 eV, but with a moderate PCE of 3.3%. In contrast, the PTB7-Th:FOIC device exhibited a relatively higher qΔVocnonrad of 0.329 eV; however, a high PCE of 11.9% was found. This trade-off relationship has been resolved using a ternary blend. By incorporation of 20% PBDTm-T1 into the PTB7-Th:FOIC blend, a small qΔVocnonrad value of 0.271 eV and a significantly high PCE of 13.8% were simultaneously obtained. The results demonstrate that the nonradiative recombination loss can be effectively reduced by using a ternary strategy.

Original language	English
Pages (from-to)	1196-1203
Number of pages	8
Journal	ACS Energy Letters
Volume	4
Issue number	5
DOIs	https://doi.org/10.1021/acsenergylett.9b00681
State	Published - 10 May 2019

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@article{780f46a348bb4323bd73a2b95930eec1,

title = "Ternary Organic Solar Cells with Small Nonradiative Recombination Loss",

abstract = "Nonradiative recombination loss (qΔVocnonrad), as a large component of energy loss (Eloss), has become an important factor that limits the power conversion efficiency (PCE) of organic solar cells (OSCs). Herein, high-performance ternary OSCs based on a polymer donor PTB7-Th, a polymer donor PBDTm-T1, and a nonfullerene acceptor FOIC are reported. When blended with FOIC, the PBDTm-T1-based device yielded a smallest qΔVocnonrad of 0.197 eV, but with a moderate PCE of 3.3\%. In contrast, the PTB7-Th:FOIC device exhibited a relatively higher qΔVocnonrad of 0.329 eV; however, a high PCE of 11.9\% was found. This trade-off relationship has been resolved using a ternary blend. By incorporation of 20\% PBDTm-T1 into the PTB7-Th:FOIC blend, a small qΔVocnonrad value of 0.271 eV and a significantly high PCE of 13.8\% were simultaneously obtained. The results demonstrate that the nonradiative recombination loss can be effectively reduced by using a ternary strategy.",

author = "Yuanpeng Xie and Tengfei Li and Jing Guo and Pengqing Bi and Xiaonan Xue and Ryu, \{Hwa Sook\} and Yunhao Cai and Jie Min and Lijun Huo and Xiaotao Hao and Woo, \{Han Young\} and Xiaowei Zhan and Yanming Sun",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = may,

day = "10",

doi = "10.1021/acsenergylett.9b00681",

language = "英语",

volume = "4",

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publisher = "American Chemical Society",

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}

TY - JOUR

T1 - Ternary Organic Solar Cells with Small Nonradiative Recombination Loss

AU - Xie, Yuanpeng

AU - Li, Tengfei

AU - Guo, Jing

AU - Bi, Pengqing

AU - Xue, Xiaonan

AU - Ryu, Hwa Sook

AU - Cai, Yunhao

AU - Min, Jie

AU - Huo, Lijun

AU - Hao, Xiaotao

AU - Woo, Han Young

AU - Zhan, Xiaowei

AU - Sun, Yanming

PY - 2019/5/10

Y1 - 2019/5/10

N2 - Nonradiative recombination loss (qΔVocnonrad), as a large component of energy loss (Eloss), has become an important factor that limits the power conversion efficiency (PCE) of organic solar cells (OSCs). Herein, high-performance ternary OSCs based on a polymer donor PTB7-Th, a polymer donor PBDTm-T1, and a nonfullerene acceptor FOIC are reported. When blended with FOIC, the PBDTm-T1-based device yielded a smallest qΔVocnonrad of 0.197 eV, but with a moderate PCE of 3.3%. In contrast, the PTB7-Th:FOIC device exhibited a relatively higher qΔVocnonrad of 0.329 eV; however, a high PCE of 11.9% was found. This trade-off relationship has been resolved using a ternary blend. By incorporation of 20% PBDTm-T1 into the PTB7-Th:FOIC blend, a small qΔVocnonrad value of 0.271 eV and a significantly high PCE of 13.8% were simultaneously obtained. The results demonstrate that the nonradiative recombination loss can be effectively reduced by using a ternary strategy.

AB - Nonradiative recombination loss (qΔVocnonrad), as a large component of energy loss (Eloss), has become an important factor that limits the power conversion efficiency (PCE) of organic solar cells (OSCs). Herein, high-performance ternary OSCs based on a polymer donor PTB7-Th, a polymer donor PBDTm-T1, and a nonfullerene acceptor FOIC are reported. When blended with FOIC, the PBDTm-T1-based device yielded a smallest qΔVocnonrad of 0.197 eV, but with a moderate PCE of 3.3%. In contrast, the PTB7-Th:FOIC device exhibited a relatively higher qΔVocnonrad of 0.329 eV; however, a high PCE of 11.9% was found. This trade-off relationship has been resolved using a ternary blend. By incorporation of 20% PBDTm-T1 into the PTB7-Th:FOIC blend, a small qΔVocnonrad value of 0.271 eV and a significantly high PCE of 13.8% were simultaneously obtained. The results demonstrate that the nonradiative recombination loss can be effectively reduced by using a ternary strategy.

UR - https://www.scopus.com/pages/publications/85065579704

U2 - 10.1021/acsenergylett.9b00681

DO - 10.1021/acsenergylett.9b00681

M3 - 文章

AN - SCOPUS:85065579704

SN - 2380-8195

VL - 4

SP - 1196

EP - 1203

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 5

ER -

Ternary Organic Solar Cells with Small Nonradiative Recombination Loss

Abstract

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