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离子液体1-乙基-3-甲基咪唑氯盐（[EMIM]Cl）对沥青质薄膜材料及电学特性的影响

Effects of Ionic Liquid, 1-Ethyl-3-methylimidazolium Chloride ([EMIM]Cl), on the Material and Electrical Characteristics of Asphaltene Thin Films.

作者信息

Thulasiraman Sundarajoo, Yunus Noor Mona Md, Kumar Pradeep, Kesuma Zayyan Rafi, Norhakim Nadia, Wilfred Cecilia Devi, Roffi Teuku Muhammad, Hamdan Mohamad Faizal, Burhanudin Zainal Arif

机构信息

Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia.

Centre of Innovative Nanostructures and Nanodevices, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia.

出版信息

Materials (Basel). 2022 Apr 12;15(8):2818. doi: 10.3390/ma15082818.

DOI:10.3390/ma15082818
PMID:35454511
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9026484/
Abstract

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 ([EMIM]Cl) 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 10 Ω/□. When the film was used as a conductive layer in organic field-effect transistors (OFET), it exhibited hole and electron conduction with hole () and electron () mobilities in the order of 10 and 10 cm/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.

摘要

沥青质是原油的一种成分，在有机电子应用方面相对尚未得到充分探索。在本研究中，我们报告了从原油罐底污泥（COTBS）中提取沥青质的技术，以及当引入1-乙基-3-甲基咪唑氯化物（[EMIM]Cl）离子液体（IL）作为掺杂剂时其薄膜特性。该提取技术得到的沥青质碳含量超过80%。离子液体导致沥青质薄膜具有典型的均方根表面粗糙度为4纳米，适用于有机电子应用。这些薄膜各自显示出3.8电子伏特的光学带隙和低至10Ω/□的薄层电阻。当该薄膜用作有机场效应晶体管（OFET）中的导电层时，它表现出空穴和电子传导，空穴（）和电子（）迁移率分别约为10和10厘米²/伏·秒。这些特性本质上只是初步的。使用合适的离子液体，沥青质薄膜可能成为有机电子应用中传输层的良好替代品。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/59c2949f4604/materials-15-02818-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/300cbeb290e6/materials-15-02818-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/864f9aaecf70/materials-15-02818-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/10b961b0f68e/materials-15-02818-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/c8419e38efbc/materials-15-02818-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/ccd555112a90/materials-15-02818-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/e90854161ead/materials-15-02818-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/59c2949f4604/materials-15-02818-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/300cbeb290e6/materials-15-02818-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/864f9aaecf70/materials-15-02818-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/10b961b0f68e/materials-15-02818-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/c8419e38efbc/materials-15-02818-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/ccd555112a90/materials-15-02818-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/e90854161ead/materials-15-02818-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3a70/9026484/59c2949f4604/materials-15-02818-g007.jpg

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