Photoresponsive conductance switching of multi-walled carbon nanotubes bearing covalently linked spironaphthoxazine

被引：17

作者：

Cheong, In Woo ^{[2
]}

Wang, Sheng ^{[1
,3
]}

Ki, Ho Seung ^{[2
]}

Kim, Sung-Hoon ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Dept Text Syst Engn, Taegu 702701, South Korea

[2] Kyungpook Natl Univ, Dept Appl Chem, Taegu 702701, South Korea

[3] Zhanjiang Normal Univ, Sch Chem Sci & Technol, Zhanjiang 524048, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2009年 / 9卷 / 06期

关键词：

Conductance; Switching; Photochromic; Spironaphthoxazines; Multi-walled carbon nanotubes; ELECTRONIC-STRUCTURE; MOLECULES;

D O I：

10.1016/j.cap.2009.02.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multi-walled carbon nanotubes functionalized with a photochromic spironaphthoxazines (MWCNTs-SPO) were synthesized by the reaction between the hydroxyl group of SPO and the carbonyl chloride groups on the surface of MWCNTs. The functional spirooxazine photochromic groups on the Surface of MWCNTs were identified by the X-ray photoelectron spectroscopy. As a novel derivative of MWCNTs, photoresponsive conductance switching of the MWCNTs-SPO was demonstrated under a 365 nm UV light irradiation. A simple photoinduced resistance measurement following the cyclic irradiation of UV light shows a very reversible response. The effect of the electron injection in the SPO is rationalized in terms of the HOMO-LUMO energy levels of both Spiro and merocyanine forms. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1269 / 1271

页数：3

共 14 条

[1] Flexible microdevices based on carbon nanotubes [J].