PVDF-stimulated surface engineering in ZnO for highly sensitive and water-stable hydrazine sensors

Moonjeong Jang; Dowon Jung; Jiyun Lee; Seung Min Lee; Ahyeon Lee; Soonmin Yim; Wooseok Song; Sung Myung; Sun Sook Lee; Yun Chan Kang; Sang Kyu Kwak; Ki Seok An

doi:10.1016/j.apsusc.2022.152747

PVDF-stimulated surface engineering in ZnO for highly sensitive and water-stable hydrazine sensors

Moonjeong Jang, Dowon Jung, Jiyun Lee, Seung Min Lee, Ahyeon Lee, Soonmin Yim, Wooseok Song, Sung Myung, Sun Sook Lee, Yun Chan Kang, Sang Kyu Kwak, Ki Seok An

Department of Materials Science and Engineering

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

2 Citations (Scopus)

Abstract

Sensors based on multifunctional n-type metal oxide semiconductors are attracting significant interest in environmental monitoring owing to their distinct characteristics including low production cost, high detection response to different noxious analytes, nontoxic nature, and acceptable biocompatibility. Herein, we present an innovative approach that utilizes surface functionalization on ZnO thin-film transistor (TFT)-type sensors with a fluoropolymer, poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) to realize highly sensitive and water-stable liquid-phase sensors. ZnO sensors laminated with PVDF-HFP thin films demonstrate exceptional repeatable stability to DI water and liquid-phase hydrazine, indicating excellent sensitivity in addition to low hydrazine-detection limits approaching 0.01 nM (sub-ppt level) under ambient conditions. This detection limit is five orders of magnitude less than that of the legal limit for an 8 h exposure time-weighted average for hydrazine. Moreover, relatively acceptable repeatability and reproducibility of the sensors were guaranteed over 96% of their initial base current with hydrazine for a month. This outstanding sensing performance is attributed to the enhanced surface interaction between PVDF-HFP with a strong dipole moment and hydrazine, which is completely discriminated from the universal detection mechanism associated with oxygen ion species in ZnO.

Original language	English
Article number	152747
Journal	Applied Surface Science
Volume	585
DOIs	https://doi.org/10.1016/j.apsusc.2022.152747
Publication status	Published - 2022 May 30

Keywords

Functionalization
Hydrazine sensor
Poly(vinylidene fluoride) (PVDF)
Thin-film transistors
Zinc oxide

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/j.apsusc.2022.152747

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@article{dbfa6695ba4e4a9facd6a31540c54372,

title = "PVDF-stimulated surface engineering in ZnO for highly sensitive and water-stable hydrazine sensors",

abstract = "Sensors based on multifunctional n-type metal oxide semiconductors are attracting significant interest in environmental monitoring owing to their distinct characteristics including low production cost, high detection response to different noxious analytes, nontoxic nature, and acceptable biocompatibility. Herein, we present an innovative approach that utilizes surface functionalization on ZnO thin-film transistor (TFT)-type sensors with a fluoropolymer, poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) to realize highly sensitive and water-stable liquid-phase sensors. ZnO sensors laminated with PVDF-HFP thin films demonstrate exceptional repeatable stability to DI water and liquid-phase hydrazine, indicating excellent sensitivity in addition to low hydrazine-detection limits approaching 0.01 nM (sub-ppt level) under ambient conditions. This detection limit is five orders of magnitude less than that of the legal limit for an 8 h exposure time-weighted average for hydrazine. Moreover, relatively acceptable repeatability and reproducibility of the sensors were guaranteed over 96% of their initial base current with hydrazine for a month. This outstanding sensing performance is attributed to the enhanced surface interaction between PVDF-HFP with a strong dipole moment and hydrazine, which is completely discriminated from the universal detection mechanism associated with oxygen ion species in ZnO.",

keywords = "Functionalization, Hydrazine sensor, Poly(vinylidene fluoride) (PVDF), Thin-film transistors, Zinc oxide",

author = "Moonjeong Jang and Dowon Jung and Jiyun Lee and Lee, {Seung Min} and Ahyeon Lee and Soonmin Yim and Wooseok Song and Sung Myung and Lee, {Sun Sook} and Kang, {Yun Chan} and Kwak, {Sang Kyu} and An, {Ki Seok}",

note = "Funding Information: This research was supported by the Nano/Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2021M3H4A3A02086431) and funded by the Ministry of Science and ICT (2021M3H4A3A02099208). This study was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2021R1A5A6002853). Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = may,

day = "30",

doi = "10.1016/j.apsusc.2022.152747",

language = "English",

volume = "585",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier",

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TY - JOUR

T1 - PVDF-stimulated surface engineering in ZnO for highly sensitive and water-stable hydrazine sensors

AU - Jang, Moonjeong

AU - Jung, Dowon

AU - Lee, Jiyun

AU - Lee, Seung Min

AU - Lee, Ahyeon

AU - Yim, Soonmin

AU - Song, Wooseok

AU - Myung, Sung

AU - Lee, Sun Sook

AU - Kang, Yun Chan

AU - Kwak, Sang Kyu

AU - An, Ki Seok

N1 - Funding Information: This research was supported by the Nano/Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2021M3H4A3A02086431) and funded by the Ministry of Science and ICT (2021M3H4A3A02099208). This study was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2021R1A5A6002853). Publisher Copyright: © 2022

PY - 2022/5/30

Y1 - 2022/5/30

N2 - Sensors based on multifunctional n-type metal oxide semiconductors are attracting significant interest in environmental monitoring owing to their distinct characteristics including low production cost, high detection response to different noxious analytes, nontoxic nature, and acceptable biocompatibility. Herein, we present an innovative approach that utilizes surface functionalization on ZnO thin-film transistor (TFT)-type sensors with a fluoropolymer, poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) to realize highly sensitive and water-stable liquid-phase sensors. ZnO sensors laminated with PVDF-HFP thin films demonstrate exceptional repeatable stability to DI water and liquid-phase hydrazine, indicating excellent sensitivity in addition to low hydrazine-detection limits approaching 0.01 nM (sub-ppt level) under ambient conditions. This detection limit is five orders of magnitude less than that of the legal limit for an 8 h exposure time-weighted average for hydrazine. Moreover, relatively acceptable repeatability and reproducibility of the sensors were guaranteed over 96% of their initial base current with hydrazine for a month. This outstanding sensing performance is attributed to the enhanced surface interaction between PVDF-HFP with a strong dipole moment and hydrazine, which is completely discriminated from the universal detection mechanism associated with oxygen ion species in ZnO.

AB - Sensors based on multifunctional n-type metal oxide semiconductors are attracting significant interest in environmental monitoring owing to their distinct characteristics including low production cost, high detection response to different noxious analytes, nontoxic nature, and acceptable biocompatibility. Herein, we present an innovative approach that utilizes surface functionalization on ZnO thin-film transistor (TFT)-type sensors with a fluoropolymer, poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) to realize highly sensitive and water-stable liquid-phase sensors. ZnO sensors laminated with PVDF-HFP thin films demonstrate exceptional repeatable stability to DI water and liquid-phase hydrazine, indicating excellent sensitivity in addition to low hydrazine-detection limits approaching 0.01 nM (sub-ppt level) under ambient conditions. This detection limit is five orders of magnitude less than that of the legal limit for an 8 h exposure time-weighted average for hydrazine. Moreover, relatively acceptable repeatability and reproducibility of the sensors were guaranteed over 96% of their initial base current with hydrazine for a month. This outstanding sensing performance is attributed to the enhanced surface interaction between PVDF-HFP with a strong dipole moment and hydrazine, which is completely discriminated from the universal detection mechanism associated with oxygen ion species in ZnO.

KW - Functionalization

KW - Hydrazine sensor

KW - Poly(vinylidene fluoride) (PVDF)

KW - Thin-film transistors

KW - Zinc oxide

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U2 - 10.1016/j.apsusc.2022.152747

DO - 10.1016/j.apsusc.2022.152747

M3 - Article

AN - SCOPUS:85124201361

SN - 0169-4332

VL - 585

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 152747

ER -

PVDF-stimulated surface engineering in ZnO for highly sensitive and water-stable hydrazine sensors

Abstract

Keywords

ASJC Scopus subject areas

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