Enhancing Efficiency and Stability of Organic Solar Cells by UV Absorbent

Meng Qin; Pei Cheng; Jiangquan Mai; Tsz Ki Lau; Qianqian Zhang; Jiayu Wang; Cenqi Yan; Kuan Liu; Chun Jen Su; Wei You; Xinhui Lu; Xiaowei Zhan

doi:10.1002/solr.201700148

Enhancing Efficiency and Stability of Organic Solar Cells by UV Absorbent

Meng Qin, Pei Cheng, Jiangquan Mai, Tsz Ki Lau, Qianqian Zhang, Jiayu Wang, Cenqi Yan, Kuan Liu, Chun Jen Su, Wei You, Xinhui Lu, Xiaowei Zhan

Research output: Journal article publication › Journal article › Academic research › peer-review

28 Citations (Scopus)

Abstract

A new type of high boiling-point additive, UV absorbent benzophenone (BP), is reported which can simultaneously improve the efficiency and stability of fullerene and nonfullerene organic solar cells (OSCs). After the addition of BP, the power conversion efficiencies (PCEs) of nonfullerene OSCs based on FTAZ: ITIC-Th is increased from 8.5 to 9.4%, and is further increased to 10.3% by employing inverted geometry. Meanwhile, the photo-stability of nonfullerene OSC is improved. After illumination-aging, the OSCs with BP preserve 79% of the original PCEs, while the OSCs without additives or with 1,8-diiodooctane only preserve 65 and 58% of their original PCEs, respectively. In addition, BP can also work in fullerene-based OSCs. After the addition of BP, the efficiency and photo-stability of the OSCs based on PTB7-Th: PC₇₁BM are simultaneously enhanced.

Original language	English
Article number	1700148
Journal	Solar RRL
Volume	1
Issue number	12
DOIs	https://doi.org/10.1002/solr.201700148
Publication status	Published - 1 Dec 2017

Keywords

additives
nonfullerene
organic solar cells
stability
UV absorbent

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Energy Engineering and Power Technology
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1002/solr.201700148

Cite this

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title = "Enhancing Efficiency and Stability of Organic Solar Cells by UV Absorbent",

abstract = "A new type of high boiling-point additive, UV absorbent benzophenone (BP), is reported which can simultaneously improve the efficiency and stability of fullerene and nonfullerene organic solar cells (OSCs). After the addition of BP, the power conversion efficiencies (PCEs) of nonfullerene OSCs based on FTAZ: ITIC-Th is increased from 8.5 to 9.4%, and is further increased to 10.3% by employing inverted geometry. Meanwhile, the photo-stability of nonfullerene OSC is improved. After illumination-aging, the OSCs with BP preserve 79% of the original PCEs, while the OSCs without additives or with 1,8-diiodooctane only preserve 65 and 58% of their original PCEs, respectively. In addition, BP can also work in fullerene-based OSCs. After the addition of BP, the efficiency and photo-stability of the OSCs based on PTB7-Th: PC71BM are simultaneously enhanced.",

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author = "Meng Qin and Pei Cheng and Jiangquan Mai and Lau, {Tsz Ki} and Qianqian Zhang and Jiayu Wang and Cenqi Yan and Kuan Liu and Su, {Chun Jen} and Wei You and Xinhui Lu and Xiaowei Zhan",

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month = dec,

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doi = "10.1002/solr.201700148",

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T1 - Enhancing Efficiency and Stability of Organic Solar Cells by UV Absorbent

AU - Qin, Meng

AU - Cheng, Pei

AU - Mai, Jiangquan

AU - Lau, Tsz Ki

AU - Zhang, Qianqian

AU - Wang, Jiayu

AU - Yan, Cenqi

AU - Liu, Kuan

AU - Su, Chun Jen

AU - You, Wei

AU - Lu, Xinhui

AU - Zhan, Xiaowei

PY - 2017/12/1

Y1 - 2017/12/1

N2 - A new type of high boiling-point additive, UV absorbent benzophenone (BP), is reported which can simultaneously improve the efficiency and stability of fullerene and nonfullerene organic solar cells (OSCs). After the addition of BP, the power conversion efficiencies (PCEs) of nonfullerene OSCs based on FTAZ: ITIC-Th is increased from 8.5 to 9.4%, and is further increased to 10.3% by employing inverted geometry. Meanwhile, the photo-stability of nonfullerene OSC is improved. After illumination-aging, the OSCs with BP preserve 79% of the original PCEs, while the OSCs without additives or with 1,8-diiodooctane only preserve 65 and 58% of their original PCEs, respectively. In addition, BP can also work in fullerene-based OSCs. After the addition of BP, the efficiency and photo-stability of the OSCs based on PTB7-Th: PC71BM are simultaneously enhanced.

AB - A new type of high boiling-point additive, UV absorbent benzophenone (BP), is reported which can simultaneously improve the efficiency and stability of fullerene and nonfullerene organic solar cells (OSCs). After the addition of BP, the power conversion efficiencies (PCEs) of nonfullerene OSCs based on FTAZ: ITIC-Th is increased from 8.5 to 9.4%, and is further increased to 10.3% by employing inverted geometry. Meanwhile, the photo-stability of nonfullerene OSC is improved. After illumination-aging, the OSCs with BP preserve 79% of the original PCEs, while the OSCs without additives or with 1,8-diiodooctane only preserve 65 and 58% of their original PCEs, respectively. In addition, BP can also work in fullerene-based OSCs. After the addition of BP, the efficiency and photo-stability of the OSCs based on PTB7-Th: PC71BM are simultaneously enhanced.

KW - additives

KW - nonfullerene

KW - organic solar cells

KW - stability

KW - UV absorbent

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DO - 10.1002/solr.201700148

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ER -

Enhancing Efficiency and Stability of Organic Solar Cells by UV Absorbent

Abstract

Keywords

ASJC Scopus subject areas

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