Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation
Currently, semiconductor gas sensors are of interest for various applications, including industry, medicine and environmental monitoring. One of the most important tasks in the sensor technology is to reduce the operating temperature of devices. In this paper, it is proposed to use WOx/WS2 nanostruc...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | Russian |
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Tver State University
2024-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
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| Online Access: | https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-1060/?lang=en |
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| _version_ | 1841560948607811584 |
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| author | Z.V. Shomakhov S.S. Nalimova O.D. Zyryanova V.M. Kondratev Z.Kh. Kalazhokov C.D. Bui V.A. Moshnikov |
| author_facet | Z.V. Shomakhov S.S. Nalimova O.D. Zyryanova V.M. Kondratev Z.Kh. Kalazhokov C.D. Bui V.A. Moshnikov |
| author_sort | Z.V. Shomakhov |
| collection | DOAJ |
| description | Currently, semiconductor gas sensors are of interest for various applications, including industry, medicine and environmental monitoring. One of the most important tasks in the sensor technology is to reduce the operating temperature of devices. In this paper, it is proposed to use WOx/WS2 nanostructures obtained by a hydrothermal method to solve this problem. The morphology, structure, and composition of the developed nanostructures were studied using scanning electron microscopy, reflected electron diffraction and X-ray photoelectron spectroscopy. It is shown that the nanostructures are formed by 1D and 2D nanoobjects with an average length of 200 nm and are nanocomposites consisting of tungsten oxide WOx and tungsten disulfide WS2. The study of sensory properties when exposed to isopropanol, ethanol and acetone vapors at room temperature was carried out. A reversible change in resistance is demonstrated when these gases appear in the atmosphere. Additionally, exposure to ultraviolet radiation during the measurement process leads to an increase in the response value and speed of the sensor layers in the case of interaction with isopropanol and ethanol vapors. |
| format | Article |
| id | doaj-art-2b696de9b1634ff783c5748c65d83d3c |
| institution | Kabale University |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| publishDate | 2024-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj-art-2b696de9b1634ff783c5748c65d83d3c2025-01-03T09:28:04ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602024-12-01161060107010.26456/pcascnn/2024.16.1060Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiationZ.V. Shomakhov0S.S. Nalimova1O.D. Zyryanova2V.M. Kondratev3Z.Kh. Kalazhokov4C.D. Bui5V.A. Moshnikov6Kabardino-Balkarian State University named after H.M. BerbekovSaint Petersburg Electrotechnical University «LETI»Saint Petersburg Electrotechnical University «LETI»Moscow Institute of Physics and Technology, Alferov UniversityKabardino-Balkarian State University named after H.M. BerbekovSaint Petersburg Electrotechnical University «LETI»Saint Petersburg Electrotechnical University «LETI»Currently, semiconductor gas sensors are of interest for various applications, including industry, medicine and environmental monitoring. One of the most important tasks in the sensor technology is to reduce the operating temperature of devices. In this paper, it is proposed to use WOx/WS2 nanostructures obtained by a hydrothermal method to solve this problem. The morphology, structure, and composition of the developed nanostructures were studied using scanning electron microscopy, reflected electron diffraction and X-ray photoelectron spectroscopy. It is shown that the nanostructures are formed by 1D and 2D nanoobjects with an average length of 200 nm and are nanocomposites consisting of tungsten oxide WOx and tungsten disulfide WS2. The study of sensory properties when exposed to isopropanol, ethanol and acetone vapors at room temperature was carried out. A reversible change in resistance is demonstrated when these gases appear in the atmosphere. Additionally, exposure to ultraviolet radiation during the measurement process leads to an increase in the response value and speed of the sensor layers in the case of interaction with isopropanol and ethanol vapors. https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-1060/?lang=engas sensorsroom temperaturenanostructurestungsten oxidetungsten disulfidenanocomposites |
| spellingShingle | Z.V. Shomakhov S.S. Nalimova O.D. Zyryanova V.M. Kondratev Z.Kh. Kalazhokov C.D. Bui V.A. Moshnikov Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов gas sensors room temperature nanostructures tungsten oxide tungsten disulfide nanocomposites |
| title | Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation |
| title_full | Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation |
| title_fullStr | Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation |
| title_full_unstemmed | Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation |
| title_short | Gas sensitivity of WOx/WS2 nanocomposites at room temperature under ultraviolet irradiation |
| title_sort | gas sensitivity of wox ws2 nanocomposites at room temperature under ultraviolet irradiation |
| topic | gas sensors room temperature nanostructures tungsten oxide tungsten disulfide nanocomposites |
| url | https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-1060/?lang=en |
| work_keys_str_mv | AT zvshomakhov gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation AT ssnalimova gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation AT odzyryanova gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation AT vmkondratev gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation AT zkhkalazhokov gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation AT cdbui gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation AT vamoshnikov gassensitivityofwoxws2nanocompositesatroomtemperatureunderultravioletirradiation |