Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors

Sooncheol Kwon; Yusin Pak; Bongseong Kim; Byoungwook Park; Jehan Kim; Geunjin Kim; Yong Ryun Jo; Saurav Limbu; Katherine Stewart; Hyeonghun Kim; Bong Joong Kim; Soo Young Jang; Hongkyu Kang; Jung Wook Min; Ji Seon Kim; Gun Young Jung; Kwanghee Lee

doi:10.1039/d0ta05530a

Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors

Sooncheol Kwon, Yusin Pak, Bongseong Kim, Byoungwook Park, Jehan Kim, Geunjin Kim, Yong Ryun Jo, Saurav Limbu, Katherine Stewart, Hyeonghun Kim, Bong Joong Kim, Soo Young Jang, Hongkyu Kang, Jung Wook Min, Ji Seon Kim, Gun Young Jung, Kwanghee Lee

King Abdullah University of Science and Technology

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

11 Scopus citations

Abstract

Printable organic sensors fabricated from solution-processed π-conjugated polymers (π-CPs) are promising candidates to detect volatile organic compounds (VOCs) due to the intriguing physical, chemical and electronic properties of π-CPs. These devices, often termed organic chemiresistors, require good sensing capabilities to transduce stimuli from specific VOCs at low concentrations into analytical electric signals. However, discriminating such VOCs using organic chemiresistors has proven very challenging. Herein, we report that the molecular-level electrochemical doping of π-CPs with solid-state ionic liquids (SILs) significantly improves their electrical conductivity (∼10-1 S cm-1) and selective VOC interactions, which can be manipulated through different π-CPs:SIL blend ratios. These characteristics enable the fine discrimination of VOCs at concentrations in the parts-per-billion (ppb) range under low power consumption (

Original language	English (US)
Pages (from-to)	16884-16891
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	8
Issue number	33
DOIs	https://doi.org/10.1039/d0ta05530a
State	Published - Jul 27 2020

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: S. K. and Y. P. contributed equally to this work. This research was supported by the Global Research Laboratory Program of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2017K1A1A2013153); the Young Researchers Program of the NRF funded by the Ministry of Science, ICT & Future Planning (NRF-2018R1C1B6006177); and GIST Research Institute (GRI), RISE grant funded by the GIST in 2020. G. Y. Jung was supported by the Pioneer Research Center Program (NRF-2016M3C1A3908893) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science and ICT & Future Planning. We thank the Heeger Center for Advanced Materials (HCAM) and the GIST-ICL International Collaboration R&D Center at Gwangju Institute of Science and
Technology (GIST) of Korea for assistance with device fabrication and characterization. We acknowledge the UK EPSRC for studentships under the Centre for Doctoral Training (CDT) in Plastic Electronics (EP/G037515/1).

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Kwon, S., Pak, Y., Kim, B., Park, B., Kim, J., Kim, G., Jo, Y. R., Limbu, S., Stewart, K., Kim, H., Kim, B. J., Jang, S. Y., Kang, H., Min, J. W., Kim, J. S., Jung, G. Y., & Lee, K. (2020). Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors. Journal of Materials Chemistry A, 8(33), 16884-16891. https://doi.org/10.1039/d0ta05530a

@article{55ac5ec4bc984b6a806235ea98487e9f,

title = "Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors",

abstract = "Printable organic sensors fabricated from solution-processed π-conjugated polymers (π-CPs) are promising candidates to detect volatile organic compounds (VOCs) due to the intriguing physical, chemical and electronic properties of π-CPs. These devices, often termed organic chemiresistors, require good sensing capabilities to transduce stimuli from specific VOCs at low concentrations into analytical electric signals. However, discriminating such VOCs using organic chemiresistors has proven very challenging. Herein, we report that the molecular-level electrochemical doping of π-CPs with solid-state ionic liquids (SILs) significantly improves their electrical conductivity (∼10-1 S cm-1) and selective VOC interactions, which can be manipulated through different π-CPs:SIL blend ratios. These characteristics enable the fine discrimination of VOCs at concentrations in the parts-per-billion (ppb) range under low power consumption (",

author = "Sooncheol Kwon and Yusin Pak and Bongseong Kim and Byoungwook Park and Jehan Kim and Geunjin Kim and Jo, {Yong Ryun} and Saurav Limbu and Katherine Stewart and Hyeonghun Kim and Kim, {Bong Joong} and Jang, {Soo Young} and Hongkyu Kang and Min, {Jung Wook} and Kim, {Ji Seon} and Jung, {Gun Young} and Kwanghee Lee",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: S. K. and Y. P. contributed equally to this work. This research was supported by the Global Research Laboratory Program of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2017K1A1A2013153); the Young Researchers Program of the NRF funded by the Ministry of Science, ICT & Future Planning (NRF-2018R1C1B6006177); and GIST Research Institute (GRI), RISE grant funded by the GIST in 2020. G. Y. Jung was supported by the Pioneer Research Center Program (NRF-2016M3C1A3908893) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science and ICT & Future Planning. We thank the Heeger Center for Advanced Materials (HCAM) and the GIST-ICL International Collaboration R&D Center at Gwangju Institute of Science and Technology (GIST) of Korea for assistance with device fabrication and characterization. We acknowledge the UK EPSRC for studentships under the Centre for Doctoral Training (CDT) in Plastic Electronics (EP/G037515/1).",

year = "2020",

month = jul,

day = "27",

doi = "10.1039/d0ta05530a",

language = "English (US)",

volume = "8",

pages = "16884--16891",

journal = "Journal of Materials Chemistry A",

issn = "2050-7496",

publisher = "Royal Society of Chemistry",

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Kwon, S, Pak, Y, Kim, B, Park, B, Kim, J, Kim, G, Jo, YR, Limbu, S, Stewart, K, Kim, H, Kim, BJ, Jang, SY, Kang, H, Min, JW, Kim, JS, Jung, GY & Lee, K 2020, 'Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors', Journal of Materials Chemistry A, vol. 8, no. 33, pp. 16884-16891. https://doi.org/10.1039/d0ta05530a

TY - JOUR

T1 - Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors

AU - Kwon, Sooncheol

AU - Pak, Yusin

AU - Kim, Bongseong

AU - Park, Byoungwook

AU - Kim, Jehan

AU - Kim, Geunjin

AU - Jo, Yong Ryun

AU - Limbu, Saurav

AU - Stewart, Katherine

AU - Kim, Hyeonghun

AU - Kim, Bong Joong

AU - Jang, Soo Young

AU - Kang, Hongkyu

AU - Min, Jung Wook

AU - Kim, Ji Seon

AU - Jung, Gun Young

AU - Lee, Kwanghee

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: S. K. and Y. P. contributed equally to this work. This research was supported by the Global Research Laboratory Program of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2017K1A1A2013153); the Young Researchers Program of the NRF funded by the Ministry of Science, ICT & Future Planning (NRF-2018R1C1B6006177); and GIST Research Institute (GRI), RISE grant funded by the GIST in 2020. G. Y. Jung was supported by the Pioneer Research Center Program (NRF-2016M3C1A3908893) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science and ICT & Future Planning. We thank the Heeger Center for Advanced Materials (HCAM) and the GIST-ICL International Collaboration R&D Center at Gwangju Institute of Science and Technology (GIST) of Korea for assistance with device fabrication and characterization. We acknowledge the UK EPSRC for studentships under the Centre for Doctoral Training (CDT) in Plastic Electronics (EP/G037515/1).

PY - 2020/7/27

Y1 - 2020/7/27

N2 - Printable organic sensors fabricated from solution-processed π-conjugated polymers (π-CPs) are promising candidates to detect volatile organic compounds (VOCs) due to the intriguing physical, chemical and electronic properties of π-CPs. These devices, often termed organic chemiresistors, require good sensing capabilities to transduce stimuli from specific VOCs at low concentrations into analytical electric signals. However, discriminating such VOCs using organic chemiresistors has proven very challenging. Herein, we report that the molecular-level electrochemical doping of π-CPs with solid-state ionic liquids (SILs) significantly improves their electrical conductivity (∼10-1 S cm-1) and selective VOC interactions, which can be manipulated through different π-CPs:SIL blend ratios. These characteristics enable the fine discrimination of VOCs at concentrations in the parts-per-billion (ppb) range under low power consumption (

AB - Printable organic sensors fabricated from solution-processed π-conjugated polymers (π-CPs) are promising candidates to detect volatile organic compounds (VOCs) due to the intriguing physical, chemical and electronic properties of π-CPs. These devices, often termed organic chemiresistors, require good sensing capabilities to transduce stimuli from specific VOCs at low concentrations into analytical electric signals. However, discriminating such VOCs using organic chemiresistors has proven very challenging. Herein, we report that the molecular-level electrochemical doping of π-CPs with solid-state ionic liquids (SILs) significantly improves their electrical conductivity (∼10-1 S cm-1) and selective VOC interactions, which can be manipulated through different π-CPs:SIL blend ratios. These characteristics enable the fine discrimination of VOCs at concentrations in the parts-per-billion (ppb) range under low power consumption (

UR - http://hdl.handle.net/10754/665072

UR - http://xlink.rsc.org/?DOI=D0TA05530A

UR - http://www.scopus.com/inward/record.url?scp=85090158603&partnerID=8YFLogxK

U2 - 10.1039/d0ta05530a

DO - 10.1039/d0ta05530a

M3 - Article

SN - 2050-7496

VL - 8

SP - 16884

EP - 16891

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 33

ER -

Molecular-level electrochemical doping for fine discrimination of volatile organic compounds in organic chemiresistors

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