title: Ultrafast and sensitive room temperature NH3 gas sensors based on chemically reduced graphene oxide.
abstract: Ultrafast and sensitive room temperature NH3 gas sensors based on chemically reduced graphene oxide (rGO) are demonstrated in this work. rGO, which was prepared via the reduction of graphene oxide by pyrrole, exhibited excellent responsive sensitivity and selectivity to ammonia (NH3) gas. The high sensing performance of these rGO sensors with resistance change as high as 2.4% and response time as fast as 1.4 s was realized when the concentration of NH3 gas was as low as 1 ppb. Furthermore, the rGO sensors could rapidly recover to their initial states with IR illumination. The devices also showed excellent repeatability and selectivity to NH3. These rGO sensors, with low cost, low power, and easy fabrication, as well as scalable properties, showed great potential for ultrasensitive detection of NH3 gas in a wide variety of fields.
authors: Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
authors: Nantao
authors: N
authors: Hu
authors: Zhi
authors: Z
authors: Yang
authors: Yanyan
authors: Y
authors: Wang
authors: Liling
authors: L
authors: Zhang
authors: Ying
authors: Y
authors: Wang
authors: Xiaolu
authors: X
authors: Huang
authors: Hao
authors: H
authors: Wei
authors: Liangmin
authors: L
authors: Wei
authors: Yafei
authors: Y
authors: Zhang