Chin. Phys. Lett.  2011, Vol. 28 Issue (11): 118501    DOI: 10.1088/0256-307X/28/11/118501
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
Improved Performance of Fluorinated Copper Phthalocyanine Thin Film Transistors Using Para-hexaphenyl as the Inducing Layer
MA Feng1, WANG Shi-Rong1**, LI Xiang-Gao1, YAN Dong-Hang2
1School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072
2State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
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MA Feng, WANG Shi-Rong, LI Xiang-Gao et al  2011 Chin. Phys. Lett. 28 118501
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Abstract We demonstrate n-type organic thin film transistors (OTFTs) employing copper hexadecafluorophthalocyanine (CuPcF16) as the active layer and para−hexaphenyl (p−6p) as the inducing layer. Compared with the CuPcF16−based OTFTs without the p−6p inducing layer, the performance of the CuPcF16/p−6p OTFTs is greatly improved. The charge carrier field-effect mobility μ, on−off current ratio Ion/Ioff and threshold voltage VT of the CuPcF16/p−6p OTFTs are 0.07 cm2/V⋅s, 1.61×105 and 6.28 V, respectively, approaching the level of a single crystal device. The improved performance is attributed to the introduction of p−6p to form a highly oriented and continuous film of CuPcF16 with the molecular ππ stack direction parallel to the substrate.
Keywords: 85.30.Tv      81.05.Hd      73.61.Ga     
Received: 03 May 2011      Published: 30 October 2011
PACS:  85.30.Tv (Field effect devices)  
  81.05.Hd (Other semiconductors)  
  73.61.Ga (II-VI semiconductors)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/11/118501       OR      https://cpl.iphy.ac.cn/Y2011/V28/I11/118501
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MA Feng
WANG Shi-Rong
LI Xiang-Gao
YAN Dong-Hang
[1] Ye R, Baba M, Suzuki K and Mori K 2009 Thin Solid Films 517 3001
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