High sensitivity, fast response
Field-effect sensors based on a high-density ultrathin silicon nanowire array achieve highly sensitive, rapid, and selective room-temperature ammonia detection, with a scalable fabrication process.
Chunsheng, Yang · Wei, Liao · Wang, Junzhuan · Yu, Linwei
ACS Sensors 2024
Response of 96.9% to 25 ppm NH₃
Response of 38.6% to 2.5 ppm NH₃
Response time of 7.9 s for 5% response
On/off ratio >10⁷