Novel Air Stable Organic Radical Semiconductor of Dimers of Dithienothiophene, Single Crystals, and Field-Effect Transistors.
Singly linked and vinyl-linked dimers of dithienothiophenes exhibit different electronic behaviors. Single crystals of the singly linked dimer show a high conductivity of 0.265 S cm(-1) , five orders of magnitude higher than that of the vinyl-linked dimer. The huge increase in the hole density of singly linked dimers results from the formation of radicals, which can be reversibly tuned by facile thermal de-doping.
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.|School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
Hantang
H
Zhang
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Huanli
H
Dong
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Yang
Y
Li
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Wei
W
Jiang
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. zhenyg@iccas.ac.cn.
Yonggang
Y
Zhen
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. ljiang@iccas.ac.cn.|Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, UK. ljiang@iccas.ac.cn.
Lang
L
Jiang
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Zhaohui
Z
Wang
Department of Chemistry and Department of Physics, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.
Wei
W
Chen
Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, UK.
Angela
A
Wittmann
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. huwp@iccas.ac.cn.|Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University, Tianjin, 300072, China. huwp@iccas.ac.cn.|Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China. huwp@iccas.ac.cn.
Wenping
W
Hu
field-effect transistors; organic semiconductors; radicals; single crystals