Solution-processed ZnO-chemically converted graphene gas sensor

Tran Viet Cuong; Viet Hung Pham; Jin Suk Chung; Eun Woo Shin; Dae Hwang Yoo; Sung Hong Hahn; Jeung Soo Huh; Gi Hong Rue; Eui Jung Kim; Seung Hyun Hur; Paul A. Kohl

doi:10.1016/j.matlet.2010.08.027

Solution-processed ZnO-chemically converted graphene gas sensor

Tran Viet Cuong, Viet Hung Pham, Jin Suk Chung, Eun Woo Shin, Dae Hwang Yoo, Sung Hong Hahn, Jeung Soo Huh, Gi Hong Rue, Eui Jung Kim, Seung Hyun Hur, Paul A. Kohl

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

138 Scopus citations

Abstract

We report a solution-processed gas sensor based on vertically aligned ZnO nanorods (NRs) on a chemically converted graphene (CCG) film. The prepared sensor device effectively detected 2 ppm of H₂S in oxygen at room temperature. A high sensitivity of the gas sensor resulted from the growth of highly dense vertical ZnO NRs on the CCG film with numerous tiny white dots on its surface, which may provide a sufficient number of sites for the nucleation and growth of the ZnO NRs. The adsorption of oxygen on the surface of the ZnO NRs was found to be crucial for obtaining an excellent gas sensing performance of the ZnO NRs-CCG sensor.

Original language	English
Pages (from-to)	2479-2482
Number of pages	4
Journal	Materials Letters
Volume	64
Issue number	22
DOIs	https://doi.org/10.1016/j.matlet.2010.08.027
State	Published - 30 Nov 2010

Keywords

Graphene films
Sensors
Solution synthesis
ZnO nanorods

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10.1016/j.matlet.2010.08.027

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title = "Solution-processed ZnO-chemically converted graphene gas sensor",

abstract = "We report a solution-processed gas sensor based on vertically aligned ZnO nanorods (NRs) on a chemically converted graphene (CCG) film. The prepared sensor device effectively detected 2 ppm of H2S in oxygen at room temperature. A high sensitivity of the gas sensor resulted from the growth of highly dense vertical ZnO NRs on the CCG film with numerous tiny white dots on its surface, which may provide a sufficient number of sites for the nucleation and growth of the ZnO NRs. The adsorption of oxygen on the surface of the ZnO NRs was found to be crucial for obtaining an excellent gas sensing performance of the ZnO NRs-CCG sensor.",

keywords = "Graphene films, Sensors, Solution synthesis, ZnO nanorods",

author = "Cuong, {Tran Viet} and Pham, {Viet Hung} and Chung, {Jin Suk} and Shin, {Eun Woo} and Yoo, {Dae Hwang} and Hahn, {Sung Hong} and Huh, {Jeung Soo} and Rue, {Gi Hong} and Kim, {Eui Jung} and Hur, {Seung Hyun} and Kohl, {Paul A.}",

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doi = "10.1016/j.matlet.2010.08.027",

language = "English",

volume = "64",

pages = "2479--2482",

journal = "Materials Letters",

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T1 - Solution-processed ZnO-chemically converted graphene gas sensor

AU - Cuong, Tran Viet

AU - Pham, Viet Hung

AU - Chung, Jin Suk

AU - Shin, Eun Woo

AU - Yoo, Dae Hwang

AU - Hahn, Sung Hong

AU - Huh, Jeung Soo

AU - Rue, Gi Hong

AU - Kim, Eui Jung

AU - Hur, Seung Hyun

AU - Kohl, Paul A.

PY - 2010/11/30

Y1 - 2010/11/30

N2 - We report a solution-processed gas sensor based on vertically aligned ZnO nanorods (NRs) on a chemically converted graphene (CCG) film. The prepared sensor device effectively detected 2 ppm of H2S in oxygen at room temperature. A high sensitivity of the gas sensor resulted from the growth of highly dense vertical ZnO NRs on the CCG film with numerous tiny white dots on its surface, which may provide a sufficient number of sites for the nucleation and growth of the ZnO NRs. The adsorption of oxygen on the surface of the ZnO NRs was found to be crucial for obtaining an excellent gas sensing performance of the ZnO NRs-CCG sensor.

AB - We report a solution-processed gas sensor based on vertically aligned ZnO nanorods (NRs) on a chemically converted graphene (CCG) film. The prepared sensor device effectively detected 2 ppm of H2S in oxygen at room temperature. A high sensitivity of the gas sensor resulted from the growth of highly dense vertical ZnO NRs on the CCG film with numerous tiny white dots on its surface, which may provide a sufficient number of sites for the nucleation and growth of the ZnO NRs. The adsorption of oxygen on the surface of the ZnO NRs was found to be crucial for obtaining an excellent gas sensing performance of the ZnO NRs-CCG sensor.

KW - Graphene films

KW - Sensors

KW - Solution synthesis

KW - ZnO nanorods

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DO - 10.1016/j.matlet.2010.08.027

M3 - Article

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SN - 0167-577X

VL - 64

SP - 2479

EP - 2482

JO - Materials Letters

JF - Materials Letters

IS - 22

ER -

Solution-processed ZnO-chemically converted graphene gas sensor

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Keywords

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