Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films

Asphaltene is a component of crude oil that has remained relatively unexplored for organic electronic applications. In this study, we report on its extraction technique from crude oil tank bottom sludge (COTBS) and its thin-film characteristics when 1-ethyl-3-methylimidazolium chloride (EMIMCl) ioni...

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Main Authors: Thulasiraman, S., Yunus, N.M.M., Kumar, P., Kesuma, Z.R., Norhakim, N., Wilfred, C.D., Roffi, T.M., Hamdan, M.F., Burhanudin, Z.A.
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Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.33151 /
Published: MDPI 2022
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128870024&doi=10.3390%2fma15082818&partnerID=40&md5=e34ea020ea7084b4c848e1cad4ccda07
http://eprints.utp.edu.my/33151/
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spelling utp-eprints.331512022-07-06T07:58:57Z Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films Thulasiraman, S. Yunus, N.M.M. Kumar, P. Kesuma, Z.R. Norhakim, N. Wilfred, C.D. Roffi, T.M. Hamdan, M.F. Burhanudin, Z.A. Asphaltene is a component of crude oil that has remained relatively unexplored for organic electronic applications. In this study, we report on its extraction technique from crude oil tank bottom sludge (COTBS) and its thin-film characteristics when 1-ethyl-3-methylimidazolium chloride (EMIMCl) ionic liquid (IL) was introduced as dopants. The extraction technique yielded asphaltene with more than 80% carbon content. The IL resulted in asphaltene thin films with a typical root-mean-square surface roughness of 4 nm, suitable for organic electronic applications. The thin films each showed an optical band gap of 3.8 eV and a sheet resistance as low as 105 Ω/�. When the film was used as a conductive layer in organic field-effect transistors (OFET), it exhibited hole and electron conduction with hole (µh ) and electron (µe ) mobilities in the order of 10�8 and 10�6 cm2/Vs, respectively. These characteristics are just preliminary in nature. With the right IL, asphaltene thin films may become a good alternative for a transport layer in organic electronic applications. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. MDPI 2022 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128870024&doi=10.3390%2fma15082818&partnerID=40&md5=e34ea020ea7084b4c848e1cad4ccda07 Thulasiraman, S. and Yunus, N.M.M. and Kumar, P. and Kesuma, Z.R. and Norhakim, N. and Wilfred, C.D. and Roffi, T.M. and Hamdan, M.F. and Burhanudin, Z.A. (2022) Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films. Materials, 15 (8). http://eprints.utp.edu.my/33151/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Asphaltene is a component of crude oil that has remained relatively unexplored for organic electronic applications. In this study, we report on its extraction technique from crude oil tank bottom sludge (COTBS) and its thin-film characteristics when 1-ethyl-3-methylimidazolium chloride (EMIMCl) ionic liquid (IL) was introduced as dopants. The extraction technique yielded asphaltene with more than 80% carbon content. The IL resulted in asphaltene thin films with a typical root-mean-square surface roughness of 4 nm, suitable for organic electronic applications. The thin films each showed an optical band gap of 3.8 eV and a sheet resistance as low as 105 Ω/�. When the film was used as a conductive layer in organic field-effect transistors (OFET), it exhibited hole and electron conduction with hole (µh ) and electron (µe ) mobilities in the order of 10�8 and 10�6 cm2/Vs, respectively. These characteristics are just preliminary in nature. With the right IL, asphaltene thin films may become a good alternative for a transport layer in organic electronic applications. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Thulasiraman, S.
Yunus, N.M.M.
Kumar, P.
Kesuma, Z.R.
Norhakim, N.
Wilfred, C.D.
Roffi, T.M.
Hamdan, M.F.
Burhanudin, Z.A.
spellingShingle Thulasiraman, S.
Yunus, N.M.M.
Kumar, P.
Kesuma, Z.R.
Norhakim, N.
Wilfred, C.D.
Roffi, T.M.
Hamdan, M.F.
Burhanudin, Z.A.
Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films
author_sort Thulasiraman, S.
title Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films
title_short Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films
title_full Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films
title_fullStr Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films
title_full_unstemmed Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl), on the Material and Electrical Characteristics of Asphaltene Thin Films
title_sort effects of ionic liquid, 1-ethyl-3-methylimidazolium chloride (emimcl), on the material and electrical characteristics of asphaltene thin films
publisher MDPI
publishDate 2022
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128870024&doi=10.3390%2fma15082818&partnerID=40&md5=e34ea020ea7084b4c848e1cad4ccda07
http://eprints.utp.edu.my/33151/
_version_ 1741197810423824384
score 11.62408

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