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High‐Performance Organic Nanoscale Photoswitches Based on Nanogap Electrodes Coated with a Blend of Poly(3‐hexylthiophene) and [6,6]‐Phenyl‐C61‐butyric Acid Methyl Ester (P3HT:PCBM)
Author(s) -
Zhu Hongfei,
Li Tao,
Zhang Yajie,
Dong Huanli,
Song Jinsheng,
Zhao Huaping,
Wei Zhongming,
Xu Wei,
Hu Wenping,
Bo Zhishan
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200903671
Subject(s) - materials science , electrode , nanoscopic scale , conductive polymer , coating , organic solar cell , nanotechnology , optoelectronics , spin coating , polymer , composite material , chemistry
High‐performance photoswitches , a key element in organic optoelectronics, are constructed by spin‐coating nanogap gold electrodes with the title polymer blend (see figure). Optimizing the gap width of the electrodes gives an on/off ratio of up to 10000 at 1 mV bias. The high on/off ratio, low energy consumption, low cost, simple processing procedures, and high air stability of the photoswitches indicate bright prospects for them in organic optoelectronics.