Solution-processed small-molecule bulk heterojunction ambipolar transistors

Shiau Shin Cheng; Peng Yi Huang; Mohan Ramesh; Hsiu Chieh Chang; Li Ming Chen; Chia Ming Yeh; Chun Lin Fung; Meng Chyi Wu; Chung Chi Liu; Choongik Kim; Hong-Cheu Lin; Ming Chou Chen; Chih Wei Chu

doi:10.1002/adfm.201303378

Solution-processed small-molecule bulk heterojunction ambipolar transistors

Shiau Shin Cheng, Peng Yi Huang, Mohan Ramesh, Hsiu Chieh Chang, Li Ming Chen, Chia Ming Yeh, Chun Lin Fung, Meng Chyi Wu, Chung Chi Liu, Choongik Kim^*, Hong-Cheu Lin, Ming Chou Chen, Chih Wei Chu

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

Solution-processed small-molecule bulk heterojunction (BHJ) ambipolar organic thin-film transistors are fabricated based on a combination of [2-phenylbenzo[d,d']thieno[3,2-b;4,5-b']dithiophene (P-BTDT): 2-(4-n-octylphenyl)benzo[d,d']thieno[3,2-b;4,5-b']dithiophene (OP-BTDT)] and C₆₀. Treating high electrical performance vacuum-deposited P-BTDT organic semiconductors with a newly developed solution-processed organic semiconductor material, OP-BTDT, in an optimized ratio yields a solution-processed p-channel organic semiconductor blend with carrier mobility as high as 0.65 cm² V^-1 s^-1. An optimized blending of P-BTDT:OP-BTDT with the n-channel semiconductor, C₆₀, results in a BHJ ambipolar transistor with balanced carrier mobilities for holes and electrons of 0.03 and 0.02 cm² V^-1 s^-1, respectively. Furthermore, a complementary-like inverter composed of two ambipolar thin-film transistors is demonstrated, which achieves a gain of 115.

Original language	English
Pages (from-to)	2057-2063
Number of pages	7
Journal	Advanced Functional Materials
Volume	24
Issue number	14
DOIs	https://doi.org/10.1002/adfm.201303378
State	Published - 9 Apr 2014

Keywords

ambipolar
bulk heterojunctions
inverters
solution process
thin-film transistors

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Cheng, Shiau Shin ; Huang, Peng Yi ; Ramesh, Mohan ; Chang, Hsiu Chieh ; Chen, Li Ming ; Yeh, Chia Ming ; Fung, Chun Lin ; Wu, Meng Chyi ; Liu, Chung Chi ; Kim, Choongik ; Lin, Hong-Cheu ; Chen, Ming Chou ; Chu, Chih Wei. / Solution-processed small-molecule bulk heterojunction ambipolar transistors. In: Advanced Functional Materials. 2014 ; Vol. 24, No. 14. pp. 2057-2063.

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abstract = "Solution-processed small-molecule bulk heterojunction (BHJ) ambipolar organic thin-film transistors are fabricated based on a combination of [2-phenylbenzo[d,d']thieno[3,2-b;4,5-b']dithiophene (P-BTDT): 2-(4-n-octylphenyl)benzo[d,d']thieno[3,2-b;4,5-b']dithiophene (OP-BTDT)] and C60. Treating high electrical performance vacuum-deposited P-BTDT organic semiconductors with a newly developed solution-processed organic semiconductor material, OP-BTDT, in an optimized ratio yields a solution-processed p-channel organic semiconductor blend with carrier mobility as high as 0.65 cm2 V-1 s-1. An optimized blending of P-BTDT:OP-BTDT with the n-channel semiconductor, C60, results in a BHJ ambipolar transistor with balanced carrier mobilities for holes and electrons of 0.03 and 0.02 cm2 V-1 s-1, respectively. Furthermore, a complementary-like inverter composed of two ambipolar thin-film transistors is demonstrated, which achieves a gain of 115.",

keywords = "ambipolar, bulk heterojunctions, inverters, solution process, thin-film transistors",

author = "Cheng, {Shiau Shin} and Huang, {Peng Yi} and Mohan Ramesh and Chang, {Hsiu Chieh} and Chen, {Li Ming} and Yeh, {Chia Ming} and Fung, {Chun Lin} and Wu, {Meng Chyi} and Liu, {Chung Chi} and Choongik Kim and Hong-Cheu Lin and Chen, {Ming Chou} and Chu, {Chih Wei}",

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doi = "10.1002/adfm.201303378",

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Solution-processed small-molecule bulk heterojunction ambipolar transistors. / Cheng, Shiau Shin; Huang, Peng Yi; Ramesh, Mohan; Chang, Hsiu Chieh; Chen, Li Ming; Yeh, Chia Ming; Fung, Chun Lin; Wu, Meng Chyi; Liu, Chung Chi; Kim, Choongik; Lin, Hong-Cheu; Chen, Ming Chou; Chu, Chih Wei.

In: Advanced Functional Materials, Vol. 24, No. 14, 09.04.2014, p. 2057-2063.

Research output: Contribution to journal › Article › peer-review

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AU - Yeh, Chia Ming

AU - Fung, Chun Lin

AU - Wu, Meng Chyi

AU - Liu, Chung Chi

AU - Kim, Choongik

AU - Lin, Hong-Cheu

AU - Chen, Ming Chou

AU - Chu, Chih Wei

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