CuFe2O4/MoS2 Mixed-Dimensional Heterostructures with Improved Gas Sensing Response
Kenan Zhang, Chang‐Chun Ding, Yihong She, Zhenhua Wu, Changhui Zhao, Baojun Pan, Lijie Zhang, Wei Zhou, Qunchao Fan
Abstract
Abstract Mixed-dimensional (2D + n D, n = 0, 1, and 3) heterostructures opened up a new avenue for fundamental physics studies and applied nanodevice designs. Herein, a novel type-II staggered band alignment CuFe 2 O 4 /MoS 2 mixed-dimensional heterostructures (MHs) that present a distinct enhanced (20–28%) acetone gas sensing response compared with pure CuFe 2 O 4 nanotubes are reported. Based on the structural characterizations and DFT calculation results, the tentative mechanism for the improvement of gas sensing performance of the CuFe 2 O 4 /MoS 2 MHs can be attributed to the synergic effect of type-II band alignment and the MoS 2 active sites.