Carbon nanotube and conducting polymer dual-layered films fabricated by microcontact printing

Jin Woo Huh; Jin Wook Jeong; Jin Woo Lee; Sang-Il Shin; Jae-Hong Kwon; Jinnil Choi; Ho Gyu Yoon; Gyeong-Ik Cho; In-Kyu You; Seung-Youl Kang; Byeong Kwon Ju
June 2009
Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p223311
Academic Journal
We report carbon nanotube/conducting polymer dual-layered film (CPDF) electrodes fabricated by microcontact printing for flexible transparent electrodes of organic thin film transistors (OTFTs). The CPDFs show ∼1000 Ω/sq surface resistivity and ∼93% transmittance at an extremely low loading of single-walled carbon nanotubes, and can be self-aligned with a precision of 20 μm. The CPDFs are applied as the source and drain electrodes in OTFTs without any supplementary alignment process, which leads to a mobility and a current on/off ratio of approximately 0.02 cm2 V-1 s-1 and ∼104, respectively.


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