Influence of the electrodeposition conditions on the energetics of polypyrrole thin films

被引：0
|
作者：
Figa, V. [1 ]
Essaidi, Z. [2 ]
机构：
[1] Dept Chem Proc & Mat Engn, I-90123 Palermo, Italy
[2] Univ Angers, FRE CNRS 2988, Lab Proprietes Opt Mat & Appl, F-49045 Angers 01, France
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2008年 / 10卷 / 12期
关键词：
Photocurrent Spectroscopy; Band gap; Flat Band Potential; Fermi Level; Polypyrrole;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of the solvent used for the electrodeposition and that of the dopant anion on the energetics of electrochemically grown polypyrrole were studied by means of a non-destructive optical technique: Photocurrent Spectroscopy. Polypyrrole films doped with the same anion and grown in different solvents, both aqueous and nonaqueous, show the same HOMO-LUMO gap and the same Fermi level location in respect to HOMO. Polypyrrole films doped with different anions in aqueous solutions, present different values of indirect band gap and flat band potential, indicating that dopant anion influences both the defects band and the Fermi level locations.
引用
收藏
页码：3392 / 3397
页数：6
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