Fused Hexacyclic Nonfullerene Acceptor with Strong Near-Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency

Wei Wang; Cenqi Yan; Tsz Ki Lau; Jiayu Wang; Kuan Liu; Yan Fan; Xinhui Lu; Xiaowei Zhan

doi:10.1002/adma.201701308

Fused Hexacyclic Nonfullerene Acceptor with Strong Near-Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency

Wei Wang
, Cenqi Yan
, Tsz Ki Lau
, Jiayu Wang
, Kuan Liu
, Yan Fan
, Xinhui Lu
, Xiaowei Zhan

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

421 Citations (Scopus)

Abstract

A fused hexacyclic electron acceptor, IHIC, based on strong electron-donating group dithienocyclopentathieno[3,2-b]thiophene flanked by strong electron-withdrawing group 1,1-dicyanomethylene-3-indanone, is designed, synthesized, and applied in semitransparent organic solar cells (ST-OSCs). IHIC exhibits strong near-infrared absorption with extinction coefficients of up to 1.6 × 10⁵m⁻¹ cm⁻¹, a narrow optical bandgap of 1.38 eV, and a high electron mobility of 2.4 × 10⁻³ cm² V⁻¹ s⁻¹. The ST-OSCs based on blends of a narrow-bandgap polymer donor PTB7-Th and narrow-bandgap IHIC acceptor exhibit a champion power conversion efficiency of 9.77% with an average visible transmittance of 36% and excellent device stability; this efficiency is much higher than any single-junction and tandem ST-OSCs reported in the literature.

Original language	English
Article number	1701308
Journal	Advanced Materials
Volume	29
Issue number	31
DOIs	https://doi.org/10.1002/adma.201701308
Publication status	Published - 18 Aug 2017

Keywords

dithienocyclopentathieno[3,2-b]thiophene
fused-ring electron acceptors
near-infrared absorption
nonfullerene acceptors
organic solar cells

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

More information

10.1002/adma.201701308

Cite this

@article{eca46f48e4834b2a9dc83b428f71a86c,

title = "Fused Hexacyclic Nonfullerene Acceptor with Strong Near-Infrared Absorption for Semitransparent Organic Solar Cells with 9.77\% Efficiency",

abstract = "A fused hexacyclic electron acceptor, IHIC, based on strong electron-donating group dithienocyclopentathieno[3,2-b]thiophene flanked by strong electron-withdrawing group 1,1-dicyanomethylene-3-indanone, is designed, synthesized, and applied in semitransparent organic solar cells (ST-OSCs). IHIC exhibits strong near-infrared absorption with extinction coefficients of up to 1.6 {\texttimes} 105m−1 cm−1, a narrow optical bandgap of 1.38 eV, and a high electron mobility of 2.4 {\texttimes} 10−3 cm2 V−1 s−1. The ST-OSCs based on blends of a narrow-bandgap polymer donor PTB7-Th and narrow-bandgap IHIC acceptor exhibit a champion power conversion efficiency of 9.77\% with an average visible transmittance of 36\% and excellent device stability; this efficiency is much higher than any single-junction and tandem ST-OSCs reported in the literature.",

keywords = "dithienocyclopentathieno[3,2-b]thiophene, fused-ring electron acceptors, near-infrared absorption, nonfullerene acceptors, organic solar cells",

author = "Wei Wang and Cenqi Yan and Lau, \{Tsz Ki\} and Jiayu Wang and Kuan Liu and Yan Fan and Xinhui Lu and Xiaowei Zhan",

note = "Funding Information: W.W. and C.Y. contributed equally to this work. X.Z. wishes to thank the 973 Program (No. 2013CB834702) and the NSFC (No. 91433114). T.-K.L. and X.L. acknowledge the financial support from the RGC of Hong Kong GRF (No. 14303314) and the CUHK Direct Grant (No. 4053128). T.-K.L. and X.L. gratefully thank the beam time and technical supports provided by 14B1 and 19U2 beamlines at the Shanghai Synchrotron Radiation Facility. Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2017",

month = aug,

day = "18",

doi = "10.1002/adma.201701308",

language = "English",

volume = "29",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "John Wiley and Sons Inc.",

number = "31",

}

TY - JOUR

T1 - Fused Hexacyclic Nonfullerene Acceptor with Strong Near-Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency

AU - Wang, Wei

AU - Yan, Cenqi

AU - Lau, Tsz Ki

AU - Wang, Jiayu

AU - Liu, Kuan

AU - Fan, Yan

AU - Lu, Xinhui

AU - Zhan, Xiaowei

N1 - Funding Information: W.W. and C.Y. contributed equally to this work. X.Z. wishes to thank the 973 Program (No. 2013CB834702) and the NSFC (No. 91433114). T.-K.L. and X.L. acknowledge the financial support from the RGC of Hong Kong GRF (No. 14303314) and the CUHK Direct Grant (No. 4053128). T.-K.L. and X.L. gratefully thank the beam time and technical supports provided by 14B1 and 19U2 beamlines at the Shanghai Synchrotron Radiation Facility. Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2017/8/18

Y1 - 2017/8/18

N2 - A fused hexacyclic electron acceptor, IHIC, based on strong electron-donating group dithienocyclopentathieno[3,2-b]thiophene flanked by strong electron-withdrawing group 1,1-dicyanomethylene-3-indanone, is designed, synthesized, and applied in semitransparent organic solar cells (ST-OSCs). IHIC exhibits strong near-infrared absorption with extinction coefficients of up to 1.6 × 105m−1 cm−1, a narrow optical bandgap of 1.38 eV, and a high electron mobility of 2.4 × 10−3 cm2 V−1 s−1. The ST-OSCs based on blends of a narrow-bandgap polymer donor PTB7-Th and narrow-bandgap IHIC acceptor exhibit a champion power conversion efficiency of 9.77% with an average visible transmittance of 36% and excellent device stability; this efficiency is much higher than any single-junction and tandem ST-OSCs reported in the literature.

AB - A fused hexacyclic electron acceptor, IHIC, based on strong electron-donating group dithienocyclopentathieno[3,2-b]thiophene flanked by strong electron-withdrawing group 1,1-dicyanomethylene-3-indanone, is designed, synthesized, and applied in semitransparent organic solar cells (ST-OSCs). IHIC exhibits strong near-infrared absorption with extinction coefficients of up to 1.6 × 105m−1 cm−1, a narrow optical bandgap of 1.38 eV, and a high electron mobility of 2.4 × 10−3 cm2 V−1 s−1. The ST-OSCs based on blends of a narrow-bandgap polymer donor PTB7-Th and narrow-bandgap IHIC acceptor exhibit a champion power conversion efficiency of 9.77% with an average visible transmittance of 36% and excellent device stability; this efficiency is much higher than any single-junction and tandem ST-OSCs reported in the literature.

KW - dithienocyclopentathieno[3,2-b]thiophene

KW - fused-ring electron acceptors

KW - near-infrared absorption

KW - nonfullerene acceptors

KW - organic solar cells

UR - https://www.scopus.com/pages/publications/85020376923

U2 - 10.1002/adma.201701308

DO - 10.1002/adma.201701308

M3 - Journal article

C2 - 28608531

AN - SCOPUS:85020376923

SN - 0935-9648

VL - 29

JO - Advanced Materials

JF - Advanced Materials

IS - 31

M1 - 1701308

ER -

Fused Hexacyclic Nonfullerene Acceptor with Strong Near-Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency

Abstract

Keywords

ASJC Scopus subject areas

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