Imperial College London

DrHyojungCha

Faculty of Natural SciencesDepartment of Chemistry

Research Associate
 
 
 
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Contact

 

h.cha

 
 
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Location

 

G22Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kim:2014:10.1039/c4tc00376d,
author = {Kim, Y and An, TK and Kim, J and Hwang, J and Park, S and Nam, S and Cha, H and Park, WJ and Baik, JM and Park, CE},
doi = {10.1039/c4tc00376d},
journal = {Journal of Materials Chemistry C},
pages = {4539--4544},
title = {A composite of a graphene oxide derivative as a novel sensing layer in an organic field-effect transistor},
url = {http://dx.doi.org/10.1039/c4tc00376d},
volume = {2},
year = {2014}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We report the fabrication of a gas sensor with an oleylamine-modified graphene oxide (OA-GO)/poly(9-9′-dioctyl-fluorene-co-bithiophene) (F8T2) composite as an active layer and demonstrate that it has better sensing ability than a comparable device with an F8T2-only active layer. OA-GO was chosen as the receptor material because of its enhanced interaction with gas analytes and its easy mixing with F8T2. OA-GO was synthesized by a simple condensation reaction between GO and oleylamine (9-octadecylamine), and characterized by Fourier transform infrared spectroscopy. The sensitivities of the gas sensors with respect to acetone and ethanol analytes were investigated by measuring the electrical parameters of the corresponding organic field effect transistor at room temperature. The sensitivity of the OA-GO/F8T2 composite device was up to 34 times that of the F8T2 device for the mobility change of acetone. © 2014 the Partner Organisations.
AU - Kim,Y
AU - An,TK
AU - Kim,J
AU - Hwang,J
AU - Park,S
AU - Nam,S
AU - Cha,H
AU - Park,WJ
AU - Baik,JM
AU - Park,CE
DO - 10.1039/c4tc00376d
EP - 4544
PY - 2014///
SN - 2050-7534
SP - 4539
TI - A composite of a graphene oxide derivative as a novel sensing layer in an organic field-effect transistor
T2 - Journal of Materials Chemistry C
UR - http://dx.doi.org/10.1039/c4tc00376d
VL - 2
ER -