CuO nanowire gas sensors for air quality control in automotive cabin

Yoon Sung Kim; In Sung Hwang; Sun Jung Kim; Choong Yong Lee; Jong Heun Lee

doi:10.1016/j.snb.2008.08.026

CuO nanowire gas sensors for air quality control in automotive cabin

Yoon Sung Kim, In Sung Hwang, Sun Jung Kim, Choong Yong Lee, Jong Heun Lee

Research output: Contribution to journal › Article › peer-review

309 Citations (Scopus)

Abstract

CuO nanowires (NWs) were grown by the thermal oxidation of Cu foil at 400 °C and gas sensors were fabricated by the deposition of a solution containing the CuO NWs. At 300-370 °C, the sensor resistance increased upon exposure to 30-100 ppm CO. This has been explained by the gas sensing characteristics of the p-type oxide semiconductor. In contrast, the sensor showed two opposite NO₂ sensing behaviors; the resistance decreased upon exposure to 30-100 ppm NO₂, but increased upon contact with ≤5 ppm NO₂. The increase in resistance upon contact with both reducing CO and a low concentration of oxidizing NO₂ gases provides a simple and novel sensing algorithm for air quality control in automotive cabins.

Original language	English
Pages (from-to)	298-303
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	135
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2008.08.026
Publication status	Published - 2008 Dec 10

Bibliographical note

Funding Information:
This work was supported by KOSEF NRL Program grant funded by the Korean government (MEST) (No. R0A-2008-000-20032-0) and a grant from the Fundamental R&D Program for Core Technology of Materials (M2008010013) funded by the Ministry of Knowledge Economy, Republic of Korea.

Keywords

Automobile ventilation
CO
CuO nanowires
NO
Thermal oxidation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2008.08.026

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title = "CuO nanowire gas sensors for air quality control in automotive cabin",

abstract = "CuO nanowires (NWs) were grown by the thermal oxidation of Cu foil at 400 °C and gas sensors were fabricated by the deposition of a solution containing the CuO NWs. At 300-370 °C, the sensor resistance increased upon exposure to 30-100 ppm CO. This has been explained by the gas sensing characteristics of the p-type oxide semiconductor. In contrast, the sensor showed two opposite NO2 sensing behaviors; the resistance decreased upon exposure to 30-100 ppm NO2, but increased upon contact with ≤5 ppm NO2. The increase in resistance upon contact with both reducing CO and a low concentration of oxidizing NO2 gases provides a simple and novel sensing algorithm for air quality control in automotive cabins.",

keywords = "Automobile ventilation, CO, CuO nanowires, NO, Thermal oxidation",

author = "Kim, {Yoon Sung} and Hwang, {In Sung} and Kim, {Sun Jung} and Lee, {Choong Yong} and Lee, {Jong Heun}",

note = "Funding Information: This work was supported by KOSEF NRL Program grant funded by the Korean government (MEST) (No. R0A-2008-000-20032-0) and a grant from the Fundamental R&D Program for Core Technology of Materials (M2008010013) funded by the Ministry of Knowledge Economy, Republic of Korea. ",

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doi = "10.1016/j.snb.2008.08.026",

language = "English",

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AU - Kim, Yoon Sung

AU - Hwang, In Sung

AU - Kim, Sun Jung

AU - Lee, Choong Yong

AU - Lee, Jong Heun

N1 - Funding Information: This work was supported by KOSEF NRL Program grant funded by the Korean government (MEST) (No. R0A-2008-000-20032-0) and a grant from the Fundamental R&D Program for Core Technology of Materials (M2008010013) funded by the Ministry of Knowledge Economy, Republic of Korea.

PY - 2008/12/10

Y1 - 2008/12/10

N2 - CuO nanowires (NWs) were grown by the thermal oxidation of Cu foil at 400 °C and gas sensors were fabricated by the deposition of a solution containing the CuO NWs. At 300-370 °C, the sensor resistance increased upon exposure to 30-100 ppm CO. This has been explained by the gas sensing characteristics of the p-type oxide semiconductor. In contrast, the sensor showed two opposite NO2 sensing behaviors; the resistance decreased upon exposure to 30-100 ppm NO2, but increased upon contact with ≤5 ppm NO2. The increase in resistance upon contact with both reducing CO and a low concentration of oxidizing NO2 gases provides a simple and novel sensing algorithm for air quality control in automotive cabins.

AB - CuO nanowires (NWs) were grown by the thermal oxidation of Cu foil at 400 °C and gas sensors were fabricated by the deposition of a solution containing the CuO NWs. At 300-370 °C, the sensor resistance increased upon exposure to 30-100 ppm CO. This has been explained by the gas sensing characteristics of the p-type oxide semiconductor. In contrast, the sensor showed two opposite NO2 sensing behaviors; the resistance decreased upon exposure to 30-100 ppm NO2, but increased upon contact with ≤5 ppm NO2. The increase in resistance upon contact with both reducing CO and a low concentration of oxidizing NO2 gases provides a simple and novel sensing algorithm for air quality control in automotive cabins.

KW - Automobile ventilation

KW - CO

KW - CuO nanowires

KW - NO

KW - Thermal oxidation

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U2 - 10.1016/j.snb.2008.08.026

DO - 10.1016/j.snb.2008.08.026

M3 - Article

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SN - 0925-4005

VL - 135

SP - 298

EP - 303

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

IS - 1

ER -

CuO nanowire gas sensors for air quality control in automotive cabin

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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