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Solution‐Processed Organic Solar Cells with 9.8% Efficiency Based on a New Small Molecule Containing a 2D Fluorinated Benzodithiophene Central Unit
Author(s) -
Wang Zhenguo,
Xu Xiaopeng,
Li Zuojia,
Feng Kui,
Li Kai,
Li Ying,
Peng Qiang
Publication year - 2016
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201600061
Subject(s) - organic solar cell , small molecule , thiophene , materials science , annealing (glass) , molecule , solvent , organic chemistry , chemistry , polymer , biochemistry , composite material
A new small molecule using 2D benzodithiophene with fluorinated thiophene side chains as a central unit, D3RTBDTTF, is synthesized for highly efficient small molecule solar cells (SM‐OSCs). The pristine D3RTBDTTF device shows an efficiency of 9.24%. The efficiency is further increased to 9.80% after a solvent‐vapor annealing process, which is among the top values reported for SM‐OSCs.