INTERFACIAL PHENOMENA AT ZNO-COO ELECTRODES

被引：2

作者：

CAMPET, G ^{[1
]}

CHANG, BT ^{[1
]}

JAKANI, M ^{[1
]}

CLAVERIE, J ^{[1
]}

SUN, ZW ^{[1
]}

机构：

[1] KOREA UNIV, FAC SCI, DEPT CHEM, Seoul, SOUTH KOREA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1988年 / 77卷 / 02期

关键词：

Crystals--Growing - Electrolytes--Materials - Semiconducting Zinc Compounds--Corrosion - Sodium Compounds - Solids--Surfaces;

D O I：

10.1016/0022-4596(88)90244-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The admittance of a cobalt-doped ZnO crystal/NaOH electrolyte interface has been studied as a function of frequency for various electrode potentials. Analysis of the admittance data gives evidence of a continuum of surface states, the density of which reaches a maximum for an energy 0.30 ev lower than the energy of the conduction-band edge. However, appropriate surface states are involved in the charge transfer processes of carriers photogenerated in the visible, between the Co2+ states and the O2/OH- level, and can stabilize as a consequence the electrode against photocorrosion.

引用

页码：234 / 239

页数：6

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