Ceramic Fe2O3 : Ta photoelectrodes for photoelectrochemical solar cells

被引：8

作者：

Arutyunyan, VM ^{[1
]}

Arakelyan, VM

Shakhnazaryan, GE

Stepanyan, GM

Turner, JA

Khaselev, O

机构：

[1] Erevan State Univ, Erevan 375049, Armenia

[2] Natl Lab Renewable Energy Sources, Golden, CO USA

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2002年 / 38卷 / 04期

关键词：

Physical Chemistry; Activation Energy; Fe2O3; Solar Cell; Charge Carrier;

D O I：

10.1023/A:1015383703991

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrophysical and photoelectrochemical characteristics of Fe2O3 photoclectrodes containing various quantities of tantalum are studied. The activation energy for the mobility of charge carriers is determined. An equivalent circuit for the electrochemical cell is constructed by analyzing frequency dependences of real and imaginary components of impedance spectra at different electrode potentials. Parameters of the equivalent circuit elements are calculated and the limiting stage of the electrode process is determined. A photoelectrochemical cell with a system of illuminated n-Fe2O3 : Ta-p-Cu2O photoclectrodes is also studied.

引用

页码：378 / 383

页数：6

共 11 条

[1] Investigations of the Fe1.99Ti0.01O3-electrolyte interface [J].

Aroutiounian, VM ;

Arakelyan, VM ;

Shahnazaryan, GE ;

Stepanyan, GM ;

Turner, JA ;

Kocha, SS .

ELECTROCHIMICA ACTA, 2000, 45 (12) :1999-2005

[2]

ARUTYUNYAN VM, 1999, ELEKTROKHIMIYA, V35, P963

[3]

ARUTYUNYAN VM, 1985, FOTOKATALITICHESKOE, P74

[4]

ARUTYUNYAN VM, 1991, FOTOKATALITICHESKOE, P228

[5]

KRUPICKA S, 1973, PHYSIK FERRITE VERWA, V2

[6] SOLAR INDUCED WATER SPLITTING WITH P-N HETEROTYPE PHOTOCHEMICAL DIODES - N-FE2O3-P-GAP [J].

METTEE, H ;

OTVOS, JW ;

CALVIN, M .

SOLAR ENERGY MATERIALS, 1981, 4 (04) :443-453

[7]

PLESKOV YV, 1985, FOTOKATALITICHESKOE, P68

[8]

PLESKOV YV, 1990, FOTOELEKTRICHESKOE P

[9]

Sakata T., 1983, Energy Resources through Photochemistry and Catalysis

[10] OXIDE SEMICONDUCTORS IN PHOTOELECTROCHEMICAL CONVERSION OF SOLAR-ENERGY [J].

SCAIFE, DE .

SOLAR ENERGY, 1980, 25 (01) :41-54

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