Optical and Electrical Properties of Printed Thin-film Transistors Based on Poly[2,7-(9,9-dioctylfluorene)-alt-4,7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole](PFO-DBT) Sorted Semiconducting Single-walled Carbon Nanotubes

doi:10.7517/j.issn.1674-0475.2014.03.260

Imaging Science and Photochemistry ›› 2014, Vol. 32 ›› Issue (3): 260-266.DOI: 10.7517/j.issn.1674-0475.2014.03.260

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Optical and Electrical Properties of Printed Thin-film Transistors Based on Poly[2,7-(9,9-dioctylfluorene)-alt-4,7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole](PFO-DBT) Sorted Semiconducting Single-walled Carbon Nanotubes

LIU Zhen^1,2, XU Wenya², QIAN Long², ZHAO Jianwen², CUI Zheng²

1. School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning, P. R. China;
2. Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu, P. R. China

Received:2013-12-18 Revised:2014-01-20 Online:2014-05-15 Published:2014-05-15

Abstract

Abstract:

In this work, a simple and rapid method to selectively sort semiconducting-SWCNTs (sc-SWCNTs) with large diameters using poly[2, 7-(9, 9-dioctylfluorene)-alt-4, 7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole](PFO-DBT) is presented. The sorted sc-SWCNTs inks have been directly used to fabricate thin film transistors (TFTs) by aerosol jet printing. Printed TFTs with effective mobility ~15.6 cm²·V^-1·s^-1 and on/off ratio ~10⁷ have been achieved. In addition, all the printed devices exhibited rapid photocurrent response to light irradiation. TFTs based on PFO-DBT sorted sc-SWCNT exhibit good photoresponsive characteristics with good stability and rapid response.

Key words: sorted semiconducting carbon nanotube, Poly[2, 7-(9, 9-dioctylfluorene)-alt-4, 7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole](PFO-DBT), printable electronics, thin film transistor, optical and electrical properties

LIU Zhen, XU Wenya, QIAN Long, ZHAO Jianwen, CUI Zheng. Optical and Electrical Properties of Printed Thin-film Transistors Based on Poly[2,7-(9,9-dioctylfluorene)-alt-4,7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole](PFO-DBT) Sorted Semiconducting Single-walled Carbon Nanotubes[J]. Imaging Science and Photochemistry, 2014, 32(3): 260-266.

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Optical and Electrical Properties of Printed Thin-film Transistors Based on Poly[2,7-(9,9-dioctylfluorene)-alt-4,7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole](PFO-DBT) Sorted Semiconducting Single-walled Carbon Nanotubes

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