title: Hydrothermal Synthesis of ZnO Structures Formed by High-Aspect-Ratio Nanowires for Acetone Detection.
abstract: Snowflake-like ZnO structures originating from self-assembled nanowires were prepared by a low-temperature aqueous solution method. The as-grown hierarchical ZnO structures were investigated by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM). The results showed that the snowflake-like ZnO structures were composed of high-aspect-ratio nanowires. Furthermore, gas-sensing properties to various testing gases of 10 and 50 ppm were measured, which confirms that the ZnO structures were of good selectivity and response to acetone and could serve for acetone sensor to detect low-concentration acetone.
authors.affiliation: College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun, 130022, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Cao
authors.affiliation: National Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun, 130022, China. eeywang@gmail.com.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: National Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun, 130022, China.
authors.forename: Zhanguo
authors.initials: Z
authors.lastname: Li
authors.affiliation: Liaoning Key Laboratory of Optoelectronic Films and Materials, School of Physics and Materials Engineering, Dalian Nationalities University, Dalian, 116600, China. yunaisen@126.com.
authors.forename: Naisen
authors.initials: N
authors.lastname: Yu
keywords: Acetone Detection; Snowflake-like structures; ZnO