@article{ART003027678},
author={Chan Hwi Kim and Suyeon Cho and Hyeongtae Kim and Wonjoo Lee and Park, Jun Hong},
title={Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2023},
volume={33},
number={6},
pages={255-260},
doi={10.6111/JKCGCT.2023.33.6.255}
TY - JOUR
AU - Chan Hwi Kim
AU - Suyeon Cho
AU - Hyeongtae Kim
AU - Wonjoo Lee
AU - Park, Jun Hong
TI - Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2023
VL - 33
IS - 6
PB - The Korea Association Of Crystal Growth, Inc.
SP - 255
EP - 260
SN - 1225-1429
AB - As demanding the detection of explosive molecules, it is required to develop rapidly and precisely responsivesensors with ultra-high sensitivity. Since two-dimensional semiconductors have an atomically thin body nature where mobilecarriers accumulate, the abrupt modulation carrier in the thin body channel can be expected. To investigate the effectivenessof WSe2 semiconductor materials as a detection material for TNT (Trinitrotoluene) explosives, WSe2 was synthesized using thermal chemical vapor deposition, and afterward, WSe2 FETs (Field Effect Transistors) were fabricated using standard photo-lithograph processes. Raman Spectrum and FT-IR (Fourier-transform infrared) spectroscopy reveal that the adsorption of TNT molecules induces the structural transition of WSe2 crystalline. The electrical properties before and after adsorption of TNT molecules on the WSe2 surface were compared; as 50 V was applied as the back gate bias, 0.02 A was recorded in the bare state, and the drain current increased to 0.41 A with a dropping 0.6% (w/v) TNT while maintaining the p-type behavior. Afterward, the electrical characteristics were additionally evaluated by comparing the carrier mobility, hysteresis, and on/off ratio. Consequently, the present report provides the milestone for developing ultra-sensitive sensors with rapid response and high precision.
KW - Tungsten diselenide;Trinitrotoluene;Adsorption;Explosives detection;Electrical response
DO - 10.6111/JKCGCT.2023.33.6.255
ER -
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee and Park, Jun Hong. (2023). Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules. Journal of the Korean Crystal Growth and Crystal Technology, 33(6), 255-260.
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee and Park, Jun Hong. 2023, "Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules", Journal of the Korean Crystal Growth and Crystal Technology, vol.33, no.6 pp.255-260. Available from: doi:10.6111/JKCGCT.2023.33.6.255
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee, Park, Jun Hong "Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules" Journal of the Korean Crystal Growth and Crystal Technology 33.6 pp.255-260 (2023) : 255.
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee, Park, Jun Hong. Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules. 2023; 33(6), 255-260. Available from: doi:10.6111/JKCGCT.2023.33.6.255
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee and Park, Jun Hong. "Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules" Journal of the Korean Crystal Growth and Crystal Technology 33, no.6 (2023) : 255-260.doi: 10.6111/JKCGCT.2023.33.6.255
Chan Hwi Kim; Suyeon Cho; Hyeongtae Kim; Wonjoo Lee; Park, Jun Hong. Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules. Journal of the Korean Crystal Growth and Crystal Technology, 33(6), 255-260. doi: 10.6111/JKCGCT.2023.33.6.255
Chan Hwi Kim; Suyeon Cho; Hyeongtae Kim; Wonjoo Lee; Park, Jun Hong. Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules. Journal of the Korean Crystal Growth and Crystal Technology. 2023; 33(6) 255-260. doi: 10.6111/JKCGCT.2023.33.6.255
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee, Park, Jun Hong. Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules. 2023; 33(6), 255-260. Available from: doi:10.6111/JKCGCT.2023.33.6.255
Chan Hwi Kim, Suyeon Cho, Hyeongtae Kim, Wonjoo Lee and Park, Jun Hong. "Electrical response of tungsten diselenide to the adsorption of trinitrotoluene molecules" Journal of the Korean Crystal Growth and Crystal Technology 33, no.6 (2023) : 255-260.doi: 10.6111/JKCGCT.2023.33.6.255