Highly sensitive room-temperature ammonia sensor based on PbS quantum dots modified SnS2 nanosheets and theoretical investigation on its sensing mechanism by DFT calculation

Jinzhou Bai, Yanbai Shen, Wenxin Wang, Meili Wu, Hong Xiao, Qiang Zhao, Sikai Zhao, Zhenyu Yuan, Fanli Meng, Fanli Meng