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Synthesis, Characterization and Gas-Sensing Properties of Pristine and SnS2 Functionalized TeO2 Nanowires
- Authors
- Kim, Sangwoo; Bang, Jae Hoon; Choi, Myung Sik; Oum, Wansik; Mirzaei, Ali; Lee, Namgue; Kwon, Hyouk-Chon; Lee, Dohyung; Jeon, Hyeongtag; Kim, Sang Sub; Kim, Hyoun Woo
- Issue Date
- May-2019
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- TeO2; SnS2; NO2 gas; Sensing mechanism; Gas sensor
- Citation
- METALS AND MATERIALS INTERNATIONAL, v.25, no.3, pp 805 - 813
- Pages
- 9
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- METALS AND MATERIALS INTERNATIONAL
- Volume
- 25
- Number
- 3
- Start Page
- 805
- End Page
- 813
- ISSN
- 1598-9623
2005-4149
- Abstract
- We report the gas-sensing properties of pristine and SnS2 functionalized TeO2 nanowires (NWs). TeO2 NWs were synthesized by a vapor-liquid-solid growth method, and SnS2 functionalization was performed using an atomic layer deposition technique followed by thermal treatment. Structural and morphological analyses verified the formation of pristine and SnS2 functionalized TeO2 NWs with desired composition, phase, and morphology. Interestingly, sensing results showed that the pristine TeO2 NW gas sensor had better sensing properties relative to the SnS2 functionalized TeO2 NW gas sensor. An underlying sensing mechanism is explained in detail, and reasons for the decrease of sensing performance with the SnS2 functionalized TeO2 NW sensor was attributed to the coverage of TeO2 surface by the SnS2 nanoparticles.
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Related Researcher
- Lee, Do hyung
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)