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A graphene/TiS3 heterojunction for resistive sensing of polar vapors at room temperature
, Article Microchimica Acta ; Volume 187, Issue 2 , 2020 ; Iraji zad, A ; Esfandiar, A ; Sasanpour, P ; Fardindoost, S ; Zou, Y ; Haigh, S. J ; Hosseini Shokouh, S. H ; Sharif University of Technology
Springer
2020
Abstract
The room temperature polar vapor sensing behavior of a graphene-TiS3 heterojunction material and TiS3 nanoribbons is described. The nanoribbons were synthesized via chemical vapor transport (CVT) and their structure was investigated by scanning electron microscopy, high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, Raman and Fourier transform infrared spectroscopies. The gas sensing performance was assessed by following the changes in their resistivities. Sensing devices were fabricated with gold contacts and with lithographically patterned graphene (Gr) electrodes in a heterojunction Gr-TiS3-Gr. The gold contacted TiS3 device has a...