Fabrication of n-Cu2O electrodes with higher energy conversion efficiency in a photoelectrochemical cell

被引：32

作者：

Jayewardena, C ^{[1
]}

Hewaparakrama, KP ^{[1
]}

Wijewardena, DLA ^{[1
]}

Guruge, H ^{[1
]}

机构：

[1] Univ Ruhuna, Dept Phys, Matara, Sri Lanka

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1998年 / 56卷 / 01期

关键词：

n-Cu2O electrodes; energy conversion; photoelectrochemical cell;

D O I：

10.1016/S0927-0248(98)00104-4

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

We observed an n-type photoresponse in cuprous oxide films, which were prepared by a simple method of immersing copper plates in a HCl solution of 3 pH at 40 degrees C temperature, when they were used in a PEC cell. This photoresponse was much higher than the previously published values for n-Cu2O electrodes which were prepared by other methods. The photocurrent obtained was in the order of 0.3 mA/cm(2) when the cell was illuminated with light intensity of 50 mW/cm(2). (The semiconductor electrode was biased to get a zero dark current.) The power conversion efficiency of the cell was 0.01%. The maximum quantum efficiency obtained was 15%. It is hoped that these values could be improved with a better understanding of the photoelectrochemical properties of the cell. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：29 / 33

页数：5

共 9 条

[1] PHOTOPOTENTIALS ON COPPER AND COPPER ALLOY ELECTRODES [J].