Electrodeposition of silver selenide thin films from aqueous solutions

被引：50

作者：

Chen, RZ ^{[1
]}

Xu, DS ^{[1
]}

Guo, GL ^{[1
]}

Tang, YQ ^{[1
]}

机构：

[1] Peking Univ, Inst Phys Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2002年 / 12卷 / 05期

关键词：

D O I：

10.1039/b107177g

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：

Silver selenide thin films have been electrodeposited potentiostatically from aqueous acid solutions containing silver ions complexed with SCN- and selenium dioxide at room temperature. The electrodeposition reactions were studied by cyclic voltammetry. The deposited films were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectra (XPS) and scanning electron microscopy (SEM). The influence of deposition parameters such as potential, electrolyte composition and pH-value on the chemical composition and crystallinity of the films is discussed. The compositions of silver selenide films were controlled continuously from Ag-rich to near stoichiometry by adjusting the bath concentration and deposition potential. After annealing and slowly cooling in argon atmosphere, the films are highly (002) oriented. Furthermore, the excess Ag in the films transformed into Ag2Se by annealing in Se vapor at 230 degreesC for 4-5 h.

引用

页码：1437 / 1441

页数：5

共 31 条

[21] Device physics - Magnetoelectronics [J].