PHOTOELECTROCHEMICAL ENERGY-CONVERSION OBTAINED WITH ULTRATHIN ORGANO-METALLIC-CHEMICAL-VAPOR-DEPOSITION LAYER OF FES2 (PYRITE) ON TIO2

被引：104

作者：

ENNAOUI, A ^{[1
]}

FIECHTER, S ^{[1
]}

TRIBUTSCH, H ^{[1
]}

GIERSIG, M ^{[1
]}

VOGEL, R ^{[1
]}

WELLER, H ^{[1
]}

机构：

[1] HAHN MEITNER INST KERNFORSCH BERLIN GMBH,PHOTOCHEM ABT,W-1000 BERLIN 39,GERMANY

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1992年 / 139卷 / 09期

关键词：

D O I：

10.1149/1.2221255

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Ultrathin (10 to 20 nm thick), polycrystalline films of FeS2 (pyrite) were grown on TiO2 (anatase) by chemical vapor deposition. The FeS2 films were characterized using optical absorption and high-resolution electron microscopy. Photoelectrochemical solar cells, using TiO2 (anatase) coated with FeS2 ultrathin films, generated high open-circuit photovoltages, of up to 600 mV, compared with a single crystal of pyrite electrode (200 mV). The photoelectrochemical behavior shows a strong dependence of photovoltage and photocurrent on the pH of the solution. It is explained by electron injection from the conduction band of FeS2 to the conduction band of TiO2. Regeneration of holes is taking place by electron transfer from the redox system in the electrolyte.

引用

页码：2514 / 2518

页数：5

共 18 条

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