Open Access Nano Express

Materialization of single multicomposite nanowire: entrapment of ZnO nanoparticles in polyaniline nanowire

Innam Lee1, Seong Yong Park2, Moon J Kim2 and Minhee Yun1*

Author Affiliations

1 Department of Electrical and Computer Engineering, University of Pittsburgh, Benedum Hall 348, Pittsburgh, PA 15261, USA

2 Department of Electrical Engineering, University of Texas at Dallas, Richardson, TX 75080, USA

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Nanoscale Research Letters 2011, 6:393  doi:10.1186/1556-276X-6-393

Published: 20 May 2011

Abstract

We present materialization of single multicomposite nanowire (SMNW)-entrapped ZnO nanoparticles (NPs) via an electrochemical growth method, which is a newly developed fabrication method to grow a single nanowire between a pair of pre-patterned electrodes. Entrapment of ZnO NPs was controlled via different conditions of SMNW fabrication such as an applied potential and mixture ratio of NPs and aniline solution. The controlled concentration of ZnO NP results in changes in the physical properties of the SMNWs, as shown in transmission electron microscopy images. Furthermore, the electrical conductivity and elasticity of SMNWs show improvement over those of pure polyaniline nanowire. The new nano-multicomposite material showed synergistic effects on mechanical and electrical properties, with logarithmical change and saturation increasing ZnO NP concentration.