Preparation and gas-sensing characteristics of nanocrystalline spinel zinc ferrite thin films

Author

Jiao, Zheng ; Wu, Minghong ; Gu, Jianzhong ; Qin, Zheng

Author_Institution

Shanghai Appl. Radiat. Inst., Shanghai Univ., China

Volume

3

Issue

4

fYear

2003

Firstpage

435

Lastpage

438

Abstract

Zinc ferrite is a promising sensor material. In this paper, thin films of nanocrystalline zinc ferrite were deposited on alumina substrates by nebulization of a 0.01-M solution of a mixture of ZnCl₂ and FeCl₃ in ethanol (Zn:Fe=1:2) followed by pyrolysis and annealing in flowing air. The resulting films were characterized by X-ray diffraction and scanning electron microscopy, and the gas-sensing properties of as-deposited films were also investigated.

Keywords

X-ray diffraction; annealing; ferrites; gas sensors; materials preparation; nanostructured materials; pyrolysis; scanning electron microscopy; thin films; zinc compounds; Al₂O₃; FeCl₃; SEM; X-ray diffraction; ZnCl₂; ZnFe₂O₄-Al₂O₃; alumina substrates; annealing; ethanol; flowing air; gas-sensing characteristics; nanocrystalline spinel Zn ferrite thin films; nebulization; scanning electron microscopy; sensor material; spray pyrolysis; Ferrite films; Gas detectors; Scanning electron microscopy; Semiconductor materials; Semiconductor thin films; Spraying; Sputtering; Thin film sensors; Transistors; Zinc;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2003.815941

Filename

1226635