Fused selenophene-thieno[3,2-B] thiophene-selenophene (ST)-based narrow-bandgap electron acceptor for efficient organic solar cells with small voltage loss

Xunfan Liao; Xueliang Shi; Ming Zhang; Ke Gao; Lijian Zuo; Feng Liu; Yiwang Chen; Alex K.Y. Jen

doi:10.1039/c9cc03585k

Fused selenophene-thieno[3,2-B] thiophene-selenophene (ST)-based narrow-bandgap electron acceptor for efficient organic solar cells with small voltage loss

Xunfan Liao^*
, Xueliang Shi
, Ming Zhang
, Ke Gao
, Lijian Zuo
, Feng Liu
, Yiwang Chen
, Alex K.Y. Jen

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

44 Scopus citations

Abstract

A novel near-infrared-light-absorbing fused-ring electron acceptor, STIC, was developed for organic solar cells. STIC exhibited a narrow bandgap with an absorption edge reaching 940 nm, which was ascribed to the strong electron-rich selenophene-thieno[3,2-b]thiophene-selenophene (ST) unit and strong intramolecular charge transfer of STIC. Also, STIC-based devices showed low open-circuit voltage (V_oc) loss values, attributed to the rigid ST core providing low reorganization energy. The device based on the PBDB-T:STIC blend exhibited a power conversion efficiency (PCE) of 9.68% with a high short-circuit current density (J_sc) of 19.96 mA cm^-2 and a low V_oc loss of 0.55 eV.

Original language	English
Pages (from-to)	8258-8261
Number of pages	4
Journal	Chemical Communications
Volume	55
Issue number	57
DOIs	https://doi.org/10.1039/c9cc03585k
State	Published - 2019

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title = "Fused selenophene-thieno[3,2-B] thiophene-selenophene (ST)-based narrow-bandgap electron acceptor for efficient organic solar cells with small voltage loss",

abstract = "A novel near-infrared-light-absorbing fused-ring electron acceptor, STIC, was developed for organic solar cells. STIC exhibited a narrow bandgap with an absorption edge reaching 940 nm, which was ascribed to the strong electron-rich selenophene-thieno[3,2-b]thiophene-selenophene (ST) unit and strong intramolecular charge transfer of STIC. Also, STIC-based devices showed low open-circuit voltage (Voc) loss values, attributed to the rigid ST core providing low reorganization energy. The device based on the PBDB-T:STIC blend exhibited a power conversion efficiency (PCE) of 9.68\% with a high short-circuit current density (Jsc) of 19.96 mA cm-2 and a low Voc loss of 0.55 eV.",

author = "Xunfan Liao and Xueliang Shi and Ming Zhang and Ke Gao and Lijian Zuo and Feng Liu and Yiwang Chen and Jen, \{Alex K.Y.\}",

note = "Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

doi = "10.1039/c9cc03585k",

language = "英语",

volume = "55",

pages = "8258--8261",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

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}

TY - JOUR

T1 - Fused selenophene-thieno[3,2-B] thiophene-selenophene (ST)-based narrow-bandgap electron acceptor for efficient organic solar cells with small voltage loss

AU - Liao, Xunfan

AU - Shi, Xueliang

AU - Zhang, Ming

AU - Gao, Ke

AU - Zuo, Lijian

AU - Liu, Feng

AU - Chen, Yiwang

AU - Jen, Alex K.Y.

PY - 2019

Y1 - 2019

N2 - A novel near-infrared-light-absorbing fused-ring electron acceptor, STIC, was developed for organic solar cells. STIC exhibited a narrow bandgap with an absorption edge reaching 940 nm, which was ascribed to the strong electron-rich selenophene-thieno[3,2-b]thiophene-selenophene (ST) unit and strong intramolecular charge transfer of STIC. Also, STIC-based devices showed low open-circuit voltage (Voc) loss values, attributed to the rigid ST core providing low reorganization energy. The device based on the PBDB-T:STIC blend exhibited a power conversion efficiency (PCE) of 9.68% with a high short-circuit current density (Jsc) of 19.96 mA cm-2 and a low Voc loss of 0.55 eV.

AB - A novel near-infrared-light-absorbing fused-ring electron acceptor, STIC, was developed for organic solar cells. STIC exhibited a narrow bandgap with an absorption edge reaching 940 nm, which was ascribed to the strong electron-rich selenophene-thieno[3,2-b]thiophene-selenophene (ST) unit and strong intramolecular charge transfer of STIC. Also, STIC-based devices showed low open-circuit voltage (Voc) loss values, attributed to the rigid ST core providing low reorganization energy. The device based on the PBDB-T:STIC blend exhibited a power conversion efficiency (PCE) of 9.68% with a high short-circuit current density (Jsc) of 19.96 mA cm-2 and a low Voc loss of 0.55 eV.

UR - https://www.scopus.com/pages/publications/85068774696

U2 - 10.1039/c9cc03585k

DO - 10.1039/c9cc03585k

M3 - 文章

C2 - 31243399

AN - SCOPUS:85068774696

SN - 1359-7345

VL - 55

SP - 8258

EP - 8261

JO - Chemical Communications

JF - Chemical Communications

IS - 57

ER -

Fused selenophene-thieno[3,2-B] thiophene-selenophene (ST)-based narrow-bandgap electron acceptor for efficient organic solar cells with small voltage loss

Abstract

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