Use of porous GaAs electrodes in photoelectrochemical cells

被引：7

作者：

Cojocaru, A

Simashkevich, A

Sherban, D

Tiginyanu, I ^{[1
]}

Ursaki, V

Tsiulyanu, I

Usatyi, I

机构：

[1] Moldavian Acad Sci, Inst Phys Appl, Kishinev 2028, Moldova

[2] State Univ Moldova, Kishinev 2009, Moldova

[3] Tech Univ Moldova, Kishinev 2004, Moldova

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2005年 / 202卷 / 08期

关键词：

D O I：

10.1002/pssa.200461223

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photoelectrochemical properties of semiconductor-electrolyte solar cells with carbon auxiliary electrode and colloidal aqueous solution of Na2SiO3, have been investigated. Bulk n-type single crystalline and nanoporous GaAs material were used as semiconductor electrodes. Current-voltage characteristics under different illumination intensities and spectral distribution of the photosensitivity were studied. The photopotential was found to reach values as high as 0.46 V for bulk n-GaAs. The introduction of porosity in GaAs shifts the maximum of the spectral distribution of photosensitivity towards the longwavelength region and increases the short circuit current by a factor of two. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1678 / 1682

页数：5

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