TY - JOUR ID - 17435 TI - Gas Sensing Investigation of Porous Hot-wire Molybdenum Disulphide Thin Films JO - Advanced Materials Letters JA - AML LA - en SN - 0976-3961 AU - Papadimitropoulos, Giorgos AU - Balliou, Angelika AU - Kouvatsos, Dimitris AU - Davazoglou, Dimitris AD - Institute of Nanoscience and Nanotechnology, NCSR Demokritos AD - Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Terma Patriarchou Grigoriou, Aghia Paraskevi, Athens 15310, Greece Y1 - 2022 PY - 2022 VL - 13 IS - 1 SP - 2201 EP - 1689 KW - hot-wire deposition KW - porous MoS2 KW - gas sensing KW - Thin films DO - 10.5185/amlett.2022.011689 N2 - The gas sensing properties of porous hot-wire MoS2 (hwMoS2) thin films have been studied. The films were deposited on oxidized silicon substrates by heating a molybdenum filament in a vacuum chamber in H2S environment. The samples remain at room temperature during the deposition and the grown films are amorphous and porous.  Reversible changes of the current values in the hwMoS2 films were observed due to the presence or upon removal of chemical gases such as hydrogen (H2) and carbon monoxide (CO). The sensitivity, was dependent on the concentrations of the gases and the temperature of measurement. The response time was found to be comparable to the recovery time and of the order of a few seconds. It is important to note that the surface of the hwMoS2 films was not activated with any catalyst, which is a common practice in most thin films used for gas sensing, rendering our process simpler and cheaper. UR - https://aml.iaamonline.org/article_17435.html L1 - https://aml.iaamonline.org/article_17435_80f239e5a2662dc16de7ebd36efe7e86.pdf ER -