THE INFLUENCE OF EXCITON FIELD DISSOCIATION ON THE EFFICIENCY OF PHOTOELECTROCHEMICAL PRODUCTION OF HYDROGEN

被引：5

作者：

AROUTIOUNIAN, VM

VARDANIAN, SK

MARGARIAN, HL

MELICKSETIAN, VA

SARUKHANIAN, RE

机构：

[1] Yerevan State University, Department of Physics of Semiconductors, Mravian Str. 1, Yerevan, 375049, Republic of Armenia

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1994年 / 19卷 / 03期

关键词：

D O I：

10.1016/0360-3199(94)90086-8

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 influence of external bias on spectral dependences of the photocurrent through a ZnO-electrolyte junction was investigated. The observed peculiarities can be explained by field dissociation of excitons. A theoretical model of the process was developed. The model considered assumes that charge carriers are born as a result of both thermal and field dissociation of excitons. It is shown that the photocurrent in the exciton absorption region for ZnO crystals can be conditioned only by field dissociation, which is of a threshold type. It is also shown that, in photoelectrochemical reactions, both bulk and surface excitons can participate.

引用

页码：209 / 213

页数：5

共 7 条

[1] AROUTIOUNIAN VM, 1989, J PHYS CONDENS MATT, V1, P847
[2] AROUTIOUNIAN VM, 1985, SOV PHYS SEMICOND, V19, P1005
[3] Arutyunyan V. M., 1989, Soviet Physics - Uspekhi, V32, P521, DOI 10.1070/PU1989v032n06ABEH002726
[4] PHOTOELECTROCHEMICAL CELL STUDIES WITH SEMICONDUCTOR ELECTRODES - A CLASSIFIED BIBLIOGRAPHY (1975 - 1983)
KALYANASUNDARAM, K
[J]. SOLAR CELLS, 1985, 15 (02): : 93 - 156
[5] PANOSYAN ZR, 1985, SOV PHYS SEMICOND+, V19, P1005
[6] SACHENKO AV, 1984, PHOTOEFFECTS NEAR SU, P231
[7] TSARENKOV GV, 1973, SOV PHYS SEMICOND, V7, P1518

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