期刊
CARBON
卷 145, 期 -, 页码 462-469出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2019.01.004
关键词
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资金
- Korea Electric Power Corporation through Korea Electrical Engineering & Science Research Institute [R14XA02-20]
- Priority Research Center Program by the National Research Foundation (NRF) of Korea - Ministry of Education [20100020207]
- Global Research & Development Center Program through the NRF - Ministry of Science and ICT [2018K1A4A3A01064272]
- Korea Institute of Science and Technology
- Nano Material Technology Development Program through the NRF - Ministry of Science and ICT [2016M3A7B4027695, 2016M3A7B4900135]
- Basic Science Research Program through the NRF - Ministry of Science and ICT [2016R1A6A3A11930698]
- National Research Foundation of Korea [2016M3A7B4027695, 2016R1A6A3A11930698, 2016M3A7B4900135] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, the rapid synthesis of graphene via chemical vapor deposition (CVD) using liquefied petroleum gas (LPG), a common and low-cost carbon source majorly composed of butane and propane, as the precursor is investigated. For the synthesis of high-quality graphene, the growth conditions are optimized by controlling CVD parameters such as growth time, temperature, gas amount, and flow rate. Thus, graphene is successfully obtained from LPG in a short time. This synthesis is 10 times faster than that the conventional synthesis using methane as the carbon source. In the X-ray photoelectron spectra, the rapidly grown graphene samples obtained from LPG show small S2p signals due to the presence of few tens ppm ethanethiol in commercial LPG. In addition, graphene is synthesized using a hydrogen and LPG mixture to investigate the quality of graphene. Both samples are characterized by their peak positions and full width at half maximum values of the G and 2D peaks in the Raman spectra and Dirac points in the electrical measurements. In particular, the Dirac points of the graphene sample obtained with a growth time of 1 min sample appear around -22 V-G and the sample's mobility is about 1600 cm(2)/V,s. (c) 2019 Published by Elsevier Ltd.
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