Photoelectrochemical properties of poly (3,4-ethylenedioxythiophene)

被引：29

作者：

Girotto, EM ^{[1
]}

Gazotti, WA ^{[1
]}

De Paoli, MA ^{[1
]}

机构：

[1] Univ Estadual Campinas, Inst Quim, Lab Polimeros Condutores & Reciclagem, BR-13083970 Campinas, SP, Brazil

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2000年 / 104卷 / 26期

关键词：

D O I：

10.1021/jp994440s

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：

The photoelectrochemical properties of poly(3,4-ethylene dioxythiophene)/poly(styrene sulfonate) in contact with an electrolytic solution containing a redox couple were studied using the theories for the semiconductor-electrolyte interface. When this polymer-electrolyte interface is illuminated with h nu > Eg (gap energy) it exhibits cathodic photocurrent typical of p-type semiconductors, and the flat band potential, density of majority carriers, and the depletion layer thickness can be determined. To complete the band energy diagram of this polymer-electrolyte interface we obtained the band gap energy through the absorption and photocurrent spectra. The relatively low band gap energy (1.5 eV) and the photoeffects observed at the interface suggest its use as the absorbing material in photoelectrochemical cells.

引用

页码：6124 / 6127

页数：4

共 26 条

[1] AN INVESTIGATION OF CU(I) ACETYLIDE FILMS ON COPPER ELECTRODES .2. PHOTOELECTROCHEMICAL STUDIES OF CU(I) PHENYLACETYLIDE [J].