Actinomorphic flower-like n-ZnO/p-ZnFe2O4 composite and its improved NO2 gas-sensing property

被引：28

作者：

Runa, A. ^{[1
]}

Zhang, Xiaolin ^{[1
]}

Wen, Gehui ^{[1
]}

Zhang, Bowen ^{[1
]}

Fu, Wuyou ^{[1
]}

Yang, Haibin ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 225卷

基金：

中国国家自然科学基金;

关键词：

ZnO/ZnFe2O4; Composite materials; Actinomorphic morphology; Heterostructure; Sensors; ROOM-TEMPERATURE; ZNO; NANOSTRUCTURES; PERFORMANCE; HYBRID; SENSOR;

D O I：

10.1016/j.matlet.2018.04.087

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Actinomorphic flower-like ZnO/ZnFe2O4 composite has been successfully synthesized by a facile two-step synthesis method. The as-prepared samples have been characterized by XRD, SEM and TEM. Compared with pure-ZnO sensor, the ZnO/ZnFe2O4-based sensor exhibited remarkably higher response, shorter response-recovery time and more superior selective to low-concentration NO2 at low operating temperature of 200 degrees C. The mechanism of enhanced gas-sensing performance of the ZnO/ZnFe2O4 composite with p-n heterostructure has been investigated. It indicates that the as-prepared ZnO/ZnFe2O4 composite is promising for NO2 gas sensor. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：73 / 76

页数：4

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