期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 380, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2023.133405
关键词
Polyoxometalate; Nanofibers; Gas sensor; NOx
In this study, Cu2ZnSnS4/polyoxometalate (CZTS/PW12) nanofibers were synthesized by electrospinning, and the sensing performance of 1D CZTS in gas sensors was investigated for the first time. It was found that CZTS/3%PW12 exhibited the highest response value (2.1) compared to all previously studied CZTS-based sensors. The 1D nanofiber structure allowed for orderly carrier movement, and the PW12 electron acceptor reduced electron-hole recombination. This work expands the possibilities for improving the performance of CZTS-based gas sensors.
Gas sensing materials with one-dimensional (1D) structure can provide a pathway for carriers migration. In this work, Cu2ZnSnS4/polyoxometalate (CZTS/PW12) nanofibers were synthesized by electrospinning. This is the first study on the sensing performance of 1D CZTS in the field of gas sensors. Moreover, PW12 can work as electron acceptor and improve the sensing properties. CZTS/3%PW12 has the highest response value (2.1) compared with the gas-sensing performance of all CZTS-based sensors studied previously. The 1D nanofiber structure allows carriers move in an orderly manner. Moreover, the PW12 electron acceptor can reduce electron-hole recombination. This work broadens the ideas for improving the performance of CZTS-based sensors.
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