Using  o ‐Chlorobenzaldehyde as a Fast Removable Solvent Additive during Spin‐Coating PTB7‐Based Active Layers: High Efficiency Thick‐Film Polymer Solar Cells | Zendy

Chen Jinxiang | Zendy; Zhang Lianjie | Zendy; Jiang Xiaofang | Zendy; Gao Ke | Zendy; Liu Feng | Zendy; Gong Xiangjun | Zendy; Chen Junwu | Zendy; Cao Yong | Zendy

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Using o ‐Chlorobenzaldehyde as a Fast Removable Solvent Additive during Spin‐Coating PTB7‐Based Active Layers: High Efficiency Thick‐Film Polymer Solar Cells

Author(s) -

Chen Jinxiang,

Zhang Lianjie,

Jiang Xiaofang,

Gao Ke,

Liu Feng,

Gong Xiangjun,

Chen Junwu,

Cao Yong

Publication year - 2017

Publication title -

advanced energy materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.08

H-Index - 220

eISSN - 1614-6840

pISSN - 1614-6832

DOI - 10.1002/aenm.201601344

Subject(s) - chlorobenzene , solvent , materials science , boiling point , polymer , spin coating , coating , chemical engineering , organic chemistry , nanotechnology , composite material , chemistry , catalysis , engineering

o ‐Chlorobenzaldehyde (CBA) is a derivative of chlorobenzene (CB) . The boiling point of CBA is 212 °C, much lower than 332 °C for 1,8‐diiodooctane (DIO). With CBA as solvent additive in CB host solvent, CBA could be fast removed during spin‐coating 100, 200, and 300 nm thick thieno[3,4‐ b ]thiophene/benzodithiophene polymer (PTB7):[6,6]‐phenyl C 71 ‐butyric acid methyl ester (PC 71 BM) active layers, achieving power conversion efficiencies of 9.11%, 8.24%, and 7.11%, respectively, much higher than 7.53%, 5.71%, and 4.93% for corresponding DIO control devices with vacuum drying.

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