Acceptor manipulation of bisalkylthiothienyl benzo[1,2-b:4,5-b']dithiophene core-structured oligomers for efficient organic photovoltaics

Xinxing Yin; Qiaoshi An; Jiangsheng Yu; Zhongsheng Xu; Ping Deng; Yongliang Geng; Baojing Zhou; Fujun Zhang; Weihua Tang

doi:10.1016/j.dyepig.2016.10.040

Acceptor manipulation of bisalkylthiothienyl benzo[1,2-b:4,5-b']dithiophene core-structured oligomers for efficient organic photovoltaics

Xinxing Yin, Qiaoshi An, Jiangsheng Yu, Zhongsheng Xu, Ping Deng, Yongliang Geng, Baojing Zhou, Fujun Zhang, Weihua Tang^*

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

Three novel small molecules named DR3TDST, DRCN3TDST and DB3TDST containing bisalkylthiothienyl side-chain on benzo[1,2-b:4,5-b']dithiophene (BDT) core with different electron-deficient ending-groups are designed and synthesized. All three molecules have deep HOMO energy level from −5.40 eV to −5.44 eV, indicating introduction of bisalkylthio group to BDT is an effective method to modulate the molecular energy levels. Different ending-groups exhibit small but measurable effects on absorption, energy level, charge transport, morphology, and photovoltaic properties of small molecules. Bulk heterojunction solar cells fabricated with DRCN3TDST and PC₇₁BM deliverer the highest power conversion efficiency (PCE) of 5.17% after annealing and solvent vapor annealing.

Original language	English
Pages (from-to)	512-519
Number of pages	8
Journal	Dyes and Pigments
Volume	140
DOIs	https://doi.org/10.1016/j.dyepig.2016.10.040
Publication status	Published - 1 May 2017
Externally published	Yes

Keywords

Benzo[1,2-b:4,5-b']dithiophene
Bisalkylthio
Molecular donor
Organic solar cells
Sidechain engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.dyepig.2016.10.040

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@article{ad3eb9c94a7c447b91a474dc71a7b064,

title = "Acceptor manipulation of bisalkylthiothienyl benzo[1,2-b:4,5-b']dithiophene core-structured oligomers for efficient organic photovoltaics",

abstract = "Three novel small molecules named DR3TDST, DRCN3TDST and DB3TDST containing bisalkylthiothienyl side-chain on benzo[1,2-b:4,5-b']dithiophene (BDT) core with different electron-deficient ending-groups are designed and synthesized. All three molecules have deep HOMO energy level from −5.40 eV to −5.44 eV, indicating introduction of bisalkylthio group to BDT is an effective method to modulate the molecular energy levels. Different ending-groups exhibit small but measurable effects on absorption, energy level, charge transport, morphology, and photovoltaic properties of small molecules. Bulk heterojunction solar cells fabricated with DRCN3TDST and PC71BM deliverer the highest power conversion efficiency (PCE) of 5.17% after annealing and solvent vapor annealing.",

keywords = "Benzo[1,2-b:4,5-b']dithiophene, Bisalkylthio, Molecular donor, Organic solar cells, Sidechain engineering",

author = "Xinxing Yin and Qiaoshi An and Jiangsheng Yu and Zhongsheng Xu and Ping Deng and Yongliang Geng and Baojing Zhou and Fujun Zhang and Weihua Tang",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2017",

month = may,

day = "1",

doi = "10.1016/j.dyepig.2016.10.040",

language = "English",

volume = "140",

pages = "512--519",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Acceptor manipulation of bisalkylthiothienyl benzo[1,2-b:4,5-b']dithiophene core-structured oligomers for efficient organic photovoltaics

AU - Yin, Xinxing

AU - An, Qiaoshi

AU - Yu, Jiangsheng

AU - Xu, Zhongsheng

AU - Deng, Ping

AU - Geng, Yongliang

AU - Zhou, Baojing

AU - Zhang, Fujun

AU - Tang, Weihua

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Three novel small molecules named DR3TDST, DRCN3TDST and DB3TDST containing bisalkylthiothienyl side-chain on benzo[1,2-b:4,5-b']dithiophene (BDT) core with different electron-deficient ending-groups are designed and synthesized. All three molecules have deep HOMO energy level from −5.40 eV to −5.44 eV, indicating introduction of bisalkylthio group to BDT is an effective method to modulate the molecular energy levels. Different ending-groups exhibit small but measurable effects on absorption, energy level, charge transport, morphology, and photovoltaic properties of small molecules. Bulk heterojunction solar cells fabricated with DRCN3TDST and PC71BM deliverer the highest power conversion efficiency (PCE) of 5.17% after annealing and solvent vapor annealing.

AB - Three novel small molecules named DR3TDST, DRCN3TDST and DB3TDST containing bisalkylthiothienyl side-chain on benzo[1,2-b:4,5-b']dithiophene (BDT) core with different electron-deficient ending-groups are designed and synthesized. All three molecules have deep HOMO energy level from −5.40 eV to −5.44 eV, indicating introduction of bisalkylthio group to BDT is an effective method to modulate the molecular energy levels. Different ending-groups exhibit small but measurable effects on absorption, energy level, charge transport, morphology, and photovoltaic properties of small molecules. Bulk heterojunction solar cells fabricated with DRCN3TDST and PC71BM deliverer the highest power conversion efficiency (PCE) of 5.17% after annealing and solvent vapor annealing.

KW - Benzo[1,2-b:4,5-b']dithiophene

KW - Bisalkylthio

KW - Molecular donor

KW - Organic solar cells

KW - Sidechain engineering

UR - http://www.scopus.com/inward/record.url?scp=85008343615&partnerID=8YFLogxK

U2 - 10.1016/j.dyepig.2016.10.040

DO - 10.1016/j.dyepig.2016.10.040

M3 - Article

AN - SCOPUS:85008343615

SN - 0143-7208

VL - 140

SP - 512

EP - 519

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Acceptor manipulation of bisalkylthiothienyl benzo[1,2-b:4,5-b']dithiophene core-structured oligomers for efficient organic photovoltaics

Abstract

Keywords

UN SDGs

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