A selenophene containing benzodithiophene- alt -thienothiophene polymer for additive-free high performance solar cell

Wei Hsuan Chang; Lei Meng; Letian Dou; Jingbi You; Chun Chao Chen; Yang Yang; Eric Patrick Young; Gang Li

doi:10.1021/ma502132t

A selenophene containing benzodithiophene- alt -thienothiophene polymer for additive-free high performance solar cell

Wei Hsuan Chang, Lei Meng, Letian Dou, Jingbi You, Chun Chao Chen, Yang Yang, Eric Patrick Young, Gang Li

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

52 Citations (Scopus)

Abstract

A selenophene-modified PTB7, PBDTSe-TT, is reported. The structure adjustment carried out by alkylselenophene substitution on the BDT building block is shown to slightly affect the polymer's electronic property, and an enlarged VOCof the resulting photovoltaic device is observed. More importantly, the PBDTSe-TT:PC71BM bulk-heterojunction thin film morphology can be optimized through this modification. As a result, an efficient PCE of 8.8% is achieved without using any solvent additive or special interfacial layer. In addition, the PBDTSe-TT-based device is relatively stable under thermal stress, making it a good candidate for fabricating stacking cells. Finally, a ∼10% PCE tandem device is demonstrated by using identical PBDTSe-TT:PC71BM subcells.

Original language	English
Pages (from-to)	562-568
Number of pages	7
Journal	Macromolecules
Volume	48
Issue number	3
DOIs	https://doi.org/10.1021/ma502132t
Publication status	Published - 10 Feb 2015
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

UN SDGs

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

More information

10.1021/ma502132t

Cite this

@article{9baea012032148c5bc84d747e6694c40,

title = "A selenophene containing benzodithiophene- alt -thienothiophene polymer for additive-free high performance solar cell",

abstract = "A selenophene-modified PTB7, PBDTSe-TT, is reported. The structure adjustment carried out by alkylselenophene substitution on the BDT building block is shown to slightly affect the polymer's electronic property, and an enlarged VOCof the resulting photovoltaic device is observed. More importantly, the PBDTSe-TT:PC71BM bulk-heterojunction thin film morphology can be optimized through this modification. As a result, an efficient PCE of 8.8% is achieved without using any solvent additive or special interfacial layer. In addition, the PBDTSe-TT-based device is relatively stable under thermal stress, making it a good candidate for fabricating stacking cells. Finally, a ∼10% PCE tandem device is demonstrated by using identical PBDTSe-TT:PC71BM subcells.",

author = "Chang, {Wei Hsuan} and Lei Meng and Letian Dou and Jingbi You and Chen, {Chun Chao} and Yang Yang and Young, {Eric Patrick} and Gang Li",

year = "2015",

month = feb,

day = "10",

doi = "10.1021/ma502132t",

language = "English",

volume = "48",

pages = "562--568",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - A selenophene containing benzodithiophene- alt -thienothiophene polymer for additive-free high performance solar cell

AU - Chang, Wei Hsuan

AU - Meng, Lei

AU - Dou, Letian

AU - You, Jingbi

AU - Chen, Chun Chao

AU - Yang, Yang

AU - Young, Eric Patrick

AU - Li, Gang

PY - 2015/2/10

Y1 - 2015/2/10

N2 - A selenophene-modified PTB7, PBDTSe-TT, is reported. The structure adjustment carried out by alkylselenophene substitution on the BDT building block is shown to slightly affect the polymer's electronic property, and an enlarged VOCof the resulting photovoltaic device is observed. More importantly, the PBDTSe-TT:PC71BM bulk-heterojunction thin film morphology can be optimized through this modification. As a result, an efficient PCE of 8.8% is achieved without using any solvent additive or special interfacial layer. In addition, the PBDTSe-TT-based device is relatively stable under thermal stress, making it a good candidate for fabricating stacking cells. Finally, a ∼10% PCE tandem device is demonstrated by using identical PBDTSe-TT:PC71BM subcells.

AB - A selenophene-modified PTB7, PBDTSe-TT, is reported. The structure adjustment carried out by alkylselenophene substitution on the BDT building block is shown to slightly affect the polymer's electronic property, and an enlarged VOCof the resulting photovoltaic device is observed. More importantly, the PBDTSe-TT:PC71BM bulk-heterojunction thin film morphology can be optimized through this modification. As a result, an efficient PCE of 8.8% is achieved without using any solvent additive or special interfacial layer. In addition, the PBDTSe-TT-based device is relatively stable under thermal stress, making it a good candidate for fabricating stacking cells. Finally, a ∼10% PCE tandem device is demonstrated by using identical PBDTSe-TT:PC71BM subcells.

UR - http://www.scopus.com/inward/record.url?scp=84922605010&partnerID=8YFLogxK

U2 - 10.1021/ma502132t

DO - 10.1021/ma502132t

M3 - Journal article

SN - 0024-9297

VL - 48

SP - 562

EP - 568

JO - Macromolecules

JF - Macromolecules

IS - 3

ER -

A selenophene containing benzodithiophene- alt -thienothiophene polymer for additive-free high performance solar cell

Abstract

ASJC Scopus subject areas

UN SDGs

More information

Other files and links

Fingerprint

Cite this