ZHONG Fu-ru,ZHANG Yong-cai,WANG Lin-lin,ZHOU Jie.Electrospun zinc oxide nanospheres for ultrasensitive room-temperature gas sensors[J].Optoelectronics Letters,2018,14(4):245-247 Electrospun zinc oxide nanospheres for ultrasensitive room-temperature gas sensors Author Name Affiliation ZHONG Fu-ru  College of Information Science and Technology, Shihezi University, Shihezi 832003, China  ZHANG Yong-cai  College of Information Science and Technology, Shihezi University, Shihezi 832003, China  WANG Lin-lin  College of Information Science and Technology, Shihezi University, Shihezi 832003, China  ZHOU Jie  College of Information Science and Technology, Shihezi University, Shihezi 832003, China  Abstract:       Zinc oxide (ZnO) nanospheres with excellent sensing ability towards formaldehyde were successfully synthesized using a single-capillary electrospinning method. Structural and electrical characteristics of the as-synthesized ZnO nanospheres were systematically investigated. The scanning electron microscope (SEM) images clearly display a novel structure of ZnO with pores distributed on the surface of the nanospheres. The results demonstrate that the ZnO nanospheres possess excellent formaldehyde gas-sensing properties. At room temperature, the response of ZnO nanospheres to formaldehyde with concentration of 100 ppm is determined to be 126.3. In addition, the ZnO nanosphere sensors exhibit short response time of 30 s and short recovery time of 2 s. These excellent gas-sensing properties make the ZnO nanospheres a promising material for the application in environmental monitoring devices. Hits: 4020 Download times: 0 View Full Text    Download reader