聚苯胺纳米点的氧化还原态与其库仑台阶效应  

Redox State of Polyaniline Nanodot and its Coulomb Staircase Effect

作　　者：周剑章[1] 翁少煌[1] 林仲华[1] 

机构地区：[1]厦门大学固体表面物理化学国家重点实验室化学化工学院,福建厦门361005

出　　处：《电化学》2009年第3期241-244,共4页Journal of Electrochemistry

基　　金：国家自然科学基金(20433040);福建省自然科学基金(Z0513002)资助

摘　　要：应用电化学恒电位法结合模板法制备聚苯胺纳米点阵列,导电原子力显微镜研究处于不同氧化还原态的聚苯胺纳米点的I～V特性,发现只有处于部分氧化态(导电态)的聚苯胺纳米点才出现库仑台阶效应,还原和全氧化态聚苯胺纳米点不显示库仑台阶.初步探讨了上述现象.Polyaniline nanodot array had been fabricated in AAO template with potentiostatic method and the Ⅰ-Ⅴ characteristics of nanodots with different redox states were measured by conducting atomic force microscope （C-AFM） in atmosphere at room temperature. We found that only nanodots in partial oxidation state exhibit coulomb staircase in the Ⅰ-Ⅴ curves, while those in the full oxidation state and reduced state do not. The above phenomena were discussed preliminarily.

关 键 词：聚苯胺纳米点 氧化还原态 库仑台阶效应 

分 类 号：TB383.1[一般工业技术—材料科学与工程]