Title :
Subsecond Response of Humidity Sensor Based on Graphene Oxide Quantum Dots
Author :
Ning Li ; Xiang-Dong Chen ; Xin-Peng Chen ; Xing Ding ; Xiao-Yu Li
Author_Institution :
Sch. of Inf. Sci. & Technol., Southwest Jiaotong Univ., Chengdu, China
Abstract :
Humidity sensors based on graphene oxide quantum dots (QDs-GO) with rapid response were developed. Results proved that these QD-GO-based sensors exhibit a subsecond response. The effect of film thickness on response time was discussed. The possible theory of intersection density was proposed to explain the rapid response behavior of QD-GO based humidity sensors. This letter demonstrated that QD-GO based sensors may have various applications, such as human breath monitoring.
Keywords :
graphene; graphene devices; humidity measurement; humidity sensors; quantum dots; thin film sensors; CO; QD-GO-based sensor; film thickness; graphene oxide quantum dot; human breath monitoring; humidity sensor; subsecond response; theory of intersection density; Films; Graphene; Humidity; Monitoring; Quantum dots; Robot sensing systems; Time factors; Graphene oxide quantum dots; graphene oxide quantum dots; humidity sensor; intersection; subsecond response;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2015.2425413
