ZnO-SnO 2 core-shell nanowire networks and their gas sensing characteristics

In Sung Hwang, Sun Jung Kim, Joong Ki Choi, Jaewan Choi, Hyunjin Ji, Gyu-Tae Kim, Jong Heun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ZnO nanowires (NWs) are grown by carbothermal reaction and SnO 2 shell layers are subsequently coated by vapor phase growth. The crystalline SnO 2 shell layer with the thickness of 5-20 nm was uniformly coated on the ZnO NWs with the diameter of 50-100 nm. The gas response of ZnO-SnO 2 core-shell NWs sensor to 10 ppm NO 2 at 200°C was increased up to ∼33 times compared to those of ZnO NWs. The enhancement of gas responses to NO 2 was discussed in relation to the thin SnO 2 shell layer and core-shell configuration of NWs.

Original languageEnglish
Title of host publication2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Pages396-397
Number of pages2
DOIs
Publication statusPublished - 2011
Event2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 - Jeju, Korea, Republic of
Duration: 2011 Oct 182011 Oct 21

Publication series

Name2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011

Other

Other2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
CountryKorea, Republic of
CityJeju
Period11/10/1811/10/21

ASJC Scopus subject areas

  • Materials Science(all)

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    Hwang, I. S., Kim, S. J., Choi, J. K., Choi, J., Ji, H., Kim, G-T., & Lee, J. H. (2011). ZnO-SnO 2 core-shell nanowire networks and their gas sensing characteristics. In 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 (pp. 396-397). [6155385] (2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011). https://doi.org/10.1109/NMDC.2011.6155385