Issue 1, 2012
From the journal:

Journal of Materials Chemistry

Towards transparent electronics: fabrication of an organic transistor with a wide bandgap polymer

C. W. Lin,a   Y. Tai,*b   D. J. Liaw,b   M. C. Chen,b   Y. C. Huang,b   C. T. Lin,a   C. W. Huang,a   Y. J. Yanga  and  Y. F. Chen*c  

* Corresponding authors

a Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan

b Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
E-mail: ytai@mail.ntust.edu.tw
Fax: +886-2-27376644
Tel: +886-2-27376620

c Department of Physics, National Taiwan University, Taipei, Taiwan
E-mail: yfchen@phys.ntu.edu.tw
Fax: +886-2-23639984
Tel: +886-2-33665125

Abstract

We have fabricated organic thin film transistors (OTFTs) with a solution process by utilizing a novel wide bandgap conjugated polymer poly(N-(4-(9,9-dioctyl-fluoren-2-yl)phenyl)-N,N′,N′-triphenyl-l,4-phenylenediamine) (P1) as the active channel material. The transistor was constituted with a bottom-gate configuration, in which P1 was deposited on the substrate, SiO2 insulator served as the gate dielectric material and Ti/Au were used as the electrodes. The hole-transporting properties of the transistor were examined by analyzing the current–voltage (I–V) characteristics. The carrier mobility was 0.95 × 10−2 cm2 V−1 s−1 and the on/off current ratio was about 5.8 × 104. Moreover, the thin film of the novel polymer P1 exhibits very high transparency for visible light since the bandgap of P1 is 2.84 eV. The excellent electrical properties of the P1 based transistor and the nature of the high transparency of such a polymer suggest that the novel polymer P1 can potentially serve as a superior material for transparent organic electronics.

Graphical abstract: Towards transparent electronics: fabrication of an organic transistor with a wide bandgap polymer

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Article information

DOI
https://doi.org/10.1039/C1JM15211D
Article type
Communication
Submitted
14 Oct 2011
Accepted
26 Oct 2011
First published
09 Nov 2011

J. Mater. Chem., 2012,22, 57-59

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Towards transparent electronics: fabrication of an organic transistor with a wide bandgap polymer

C. W. Lin, Y. Tai, D. J. Liaw, M. C. Chen, Y. C. Huang, C. T. Lin, C. W. Huang, Y. J. Yang and Y. F. Chen, J. Mater. Chem., 2012, 22, 57 DOI: 10.1039/C1JM15211D

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