Nanogap-based electrical hydrogen sensors fabricated from Pd-PMMA hybrid thin films

Byungjin Jang; Kang Yeol Lee; Jin Seo Noh; Wooyoung Lee

doi:10.1016/j.snb.2013.11.080

Nanogap-based electrical hydrogen sensors fabricated from Pd-PMMA hybrid thin films

Byungjin Jang, Kang Yeol Lee, Jin Seo Noh, Wooyoung Lee

Department of Materials Science and Engineering

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

42 Citations (Scopus)

Abstract

Hybrid thin films, in which a Pd thin film was sandwiched between thin poly(methyl methacrylate) PMMA layers, were prepared on a flexible substrate using a combination of sputtering and spin coating. In real-time electrical response tests to H₂, Pd-PMMA hybrid nanogap sensors operated in an on-off manner for both air and N₂ carriers. Due to the selective penetration of H₂ and the density reduction of the cracks that formed in the trilayer of the hybrid thin films, the detection limit of the hybrid nanogap sensors (6000 ppm H₂ in air and 600 ppm H₂ in N₂) was drastically reduced compared to that of Pd nanogap sensors without PMMA layers. Hybrid thin films have great promise in realizing sensors that can be used in air without additional filter system.

Original language	English
Pages (from-to)	530-535
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	193
DOIs	https://doi.org/10.1016/j.snb.2013.11.080
Publication status	Published - 2014 Mar 31

Bibliographical note

Funding Information:
This research was supported by the Priority Research Centers Program ( 2009-0093823 ) and the Converging Research Center Program ( 2012K001321 ) through the National Research Foundation of Korea (NRF) .

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1016/j.snb.2013.11.080

Cite this

@article{5770bc978a884f1c9cb0bd709ead1930,

title = "Nanogap-based electrical hydrogen sensors fabricated from Pd-PMMA hybrid thin films",

abstract = "Hybrid thin films, in which a Pd thin film was sandwiched between thin poly(methyl methacrylate) PMMA layers, were prepared on a flexible substrate using a combination of sputtering and spin coating. In real-time electrical response tests to H2, Pd-PMMA hybrid nanogap sensors operated in an on-off manner for both air and N2 carriers. Due to the selective penetration of H2 and the density reduction of the cracks that formed in the trilayer of the hybrid thin films, the detection limit of the hybrid nanogap sensors (6000 ppm H2 in air and 600 ppm H2 in N2) was drastically reduced compared to that of Pd nanogap sensors without PMMA layers. Hybrid thin films have great promise in realizing sensors that can be used in air without additional filter system.",

author = "Byungjin Jang and Lee, {Kang Yeol} and Noh, {Jin Seo} and Wooyoung Lee",

note = "Funding Information: This research was supported by the Priority Research Centers Program ( 2009-0093823 ) and the Converging Research Center Program ( 2012K001321 ) through the National Research Foundation of Korea (NRF) . ",

year = "2014",

month = mar,

day = "31",

doi = "10.1016/j.snb.2013.11.080",

language = "English",

volume = "193",

pages = "530--535",

journal = "Sensors and Actuators, B: Chemical",

issn = "0925-4005",

publisher = "Elsevier",

}

TY - JOUR

T1 - Nanogap-based electrical hydrogen sensors fabricated from Pd-PMMA hybrid thin films

AU - Jang, Byungjin

AU - Lee, Kang Yeol

AU - Noh, Jin Seo

AU - Lee, Wooyoung

N1 - Funding Information: This research was supported by the Priority Research Centers Program ( 2009-0093823 ) and the Converging Research Center Program ( 2012K001321 ) through the National Research Foundation of Korea (NRF) .

PY - 2014/3/31

Y1 - 2014/3/31

N2 - Hybrid thin films, in which a Pd thin film was sandwiched between thin poly(methyl methacrylate) PMMA layers, were prepared on a flexible substrate using a combination of sputtering and spin coating. In real-time electrical response tests to H2, Pd-PMMA hybrid nanogap sensors operated in an on-off manner for both air and N2 carriers. Due to the selective penetration of H2 and the density reduction of the cracks that formed in the trilayer of the hybrid thin films, the detection limit of the hybrid nanogap sensors (6000 ppm H2 in air and 600 ppm H2 in N2) was drastically reduced compared to that of Pd nanogap sensors without PMMA layers. Hybrid thin films have great promise in realizing sensors that can be used in air without additional filter system.

AB - Hybrid thin films, in which a Pd thin film was sandwiched between thin poly(methyl methacrylate) PMMA layers, were prepared on a flexible substrate using a combination of sputtering and spin coating. In real-time electrical response tests to H2, Pd-PMMA hybrid nanogap sensors operated in an on-off manner for both air and N2 carriers. Due to the selective penetration of H2 and the density reduction of the cracks that formed in the trilayer of the hybrid thin films, the detection limit of the hybrid nanogap sensors (6000 ppm H2 in air and 600 ppm H2 in N2) was drastically reduced compared to that of Pd nanogap sensors without PMMA layers. Hybrid thin films have great promise in realizing sensors that can be used in air without additional filter system.

UR - http://www.scopus.com/inward/record.url?scp=84891603071&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84891603071&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2013.11.080

DO - 10.1016/j.snb.2013.11.080

M3 - Article

AN - SCOPUS:84891603071

SN - 0925-4005

VL - 193

SP - 530

EP - 535

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

ER -

Nanogap-based electrical hydrogen sensors fabricated from Pd-PMMA hybrid thin films

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this