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

doi:10.1109/NMDC.2011.6155385

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 proceeding › Conference contribution

1 Citation (Scopus)

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 language	English
Title of host publication	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Pages	396-397
Number of pages	2
DOIs	https://doi.org/10.1109/NMDC.2011.6155385
Publication status	Published - 2011
Event	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 - Jeju, Korea, Republic of Duration: 2011 Oct 18 → 2011 Oct 21

Publication series

Name	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011

Other

Other	2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Country/Territory	Korea, Republic of
City	Jeju
Period	11/10/18 → 11/10/21

ASJC Scopus subject areas

Materials Science(all)

Access to Document

10.1109/NMDC.2011.6155385

Cite this

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

ZnO-SnO ₂ core-shell nanowire networks and their gas sensing characteristics. / Hwang, In Sung; Kim, Sun Jung; Choi, Joong Ki et al.
2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011. 2011. p. 396-397 6155385 (2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hwang, IS, Kim, SJ, Choi, JK, Choi, J, Ji, H, Kim, G-T & Lee, JH 2011, ZnO-SnO ₂ core-shell nanowire networks and their gas sensing characteristics. in 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011., 6155385, 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011, pp. 396-397, 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011, Jeju, Korea, Republic of, 11/10/18. https://doi.org/10.1109/NMDC.2011.6155385

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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.",

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