120 MeV Si9+ ion irradiation effects on poly(3-methylthiophene) conducting polymer

被引：14

作者：

Kumar, A. ^{[1
]}

Hussain, A. M. P. ^{[1
]}

机构：

[1] Tezpur Univ, Dept Phys, Tezput 784028, Assam, India

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2006年 / 251卷 / 02期

关键词：

poly(3-methylthiophene); swift heavy ion irradiation; cyclic voltarnmetry; electrical conductivity; XRD; SEM;

D O I：

10.1016/j.nimb.2006.08.005

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Conducting polymers are suitable electrode materials for high performance supercapacitors, for their high specific capacitance and high dc conductivity in the charged state. Swift heavy ion (SHI) {energy > 1 MeV} irradiation of the polymers is a novel technique to enhance/alter their properties like conductivity, density, chain length and solubility. Poly(3-methylthiophene) conducting polymer thin films doped with LiClO4 and LiCF3SO3 are synthesized electrochemically on ITO coated glass substrates and irradiated with 120 MeV Si9+ ions at different fluences of 5 x 10(10), 5 x 10(11) and 3 x 10(12) ions/cm(2). The dc conductivity measurements of irradiated films show similar to 60% increase in conductivity, which could be attributed to increase of carrier concentration in the polymer film and cross-linking of polymer chains. X-ray diffractogram study shows that the degree of crystallinity of poly(3-methylthiophene) is increased and shows an increasing trend with the increase in fluence of SHI irradiation. SEM micrographs show grain growth and densification of the polymer films upon SHI irradiation. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：451 / 456

页数：6

共 44 条

[1] The first truly all-polymer electrochromic devices [J].