EVOLUTION OF POLYPYRROLE BAND-STRUCTURE - A SCANNING TUNNELING SPECTROSCOPY STUDY

被引：43

作者：

YANG, R

SMYRL, WH

EVANS, DF

HENDRICKSON, WA

机构：

[1] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,MINNEAPOLIS,MN 55455

[2] THREE M CO,CORP RES LAB,ST PAUL,MN 55144

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 03期

关键词：

D O I：

10.1021/j100182a073

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Scanning tunneling spectroscopy (STS) has been used to determine the band structure of polypyrrole. The polypyrrole films were electropolymerized onto a highly oriented pyrolytic graphite surface using a rotating disk electrode. Differential conductance spectra measurements allowed us to follow the evolution of the band gap as a function of doping level. Before and after the STS measurements, the film structure was imaged by scanning tunneling microscopy. The STS results agree with data obtained by inverse photoemission spectroscopy.

引用

页码：1428 / 1430

页数：3

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