影像科学与光化学 ›› 2014, Vol. 32 ›› Issue (3): 260-266.DOI: 10.7517/j.issn.1674-0475.2014.03.260

• 论文 • 上一篇    下一篇

印刷半导体碳纳米管薄膜晶体管光电性能研究

刘振1,2, 徐文亚2, 钱龙2, 赵建文2, 崔铮2   

  1. 1. 大连交通大学 材料科学与工程学院, 辽宁 大连 116028;
    2. 中国科学院 苏州纳米技术与纳米仿生研究所 印刷电子研究中心, 江苏 苏州 215123
  • 收稿日期:2013-12-18 修回日期:2014-01-20 出版日期:2014-05-15 发布日期:2014-05-15
  • 通讯作者: 崔铮
  • 基金资助:

    国家自然基金青年基金项目(91123034,61102046)和江苏省自然基金(BK2011364)资助

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 Zhen1,2, XU Wenya2, QIAN Long2, ZHAO Jianwen2, CUI Zheng2   

  1. 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

摘要:

本文研究了聚[(2,7-9,9-二辛基芴基)-4,7-双(噻吩-2-基)苯并-2,1,3-噻二唑](PFO-DBT)分离的半导体碳纳米管薄膜晶体管的光电性能。在超声和高速离心辅助下,PFO-DBT能够从商业化单壁碳纳米管中选择性分离出高纯的半导体碳纳米管。用得到的半导体碳纳米管溶液通过气溶胶喷墨印刷方法构建出高性能印刷薄膜晶体管器件。印刷碳纳米管薄膜晶体管表现出高的开关比(107)和高迁移率(15.6 cm2·V-1·s-1)。并且所有制备的印刷薄膜晶体管具有很好的光敏感特性和很好的稳定性。

关键词: 半导体性碳纳米管, 聚合物, 印刷电子, 薄膜晶体管, 光响应特性

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