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Title: Silane-catalysed fast growth of large single-crystalline graphene on hexagonal boron nitride
Authors: Tang, Shujie
Wang, Haomin
Wang, Hui Shan
Sun, Qiujuan
Zhang, Xiuyun
Cong, Chunxiao
Xie, Hong
Liu, Xiaoyu
Zhou, Xiaohao
Huang, Fuqiang
Chen, Xiaoshuang
Yu, Ting
Ding, Feng
Xie, Xiaoming
Jiang, Mianheng
Keywords: DRNTU::Science::Physics
Quantum Hall
Surfaces, Interfaces and Thin Films
Issue Date: 2015
Source: Tang, S., Wang, H., Wang, H. S., Sun, Q., Zhang, X., Cong, C., . . . Jiang, M. (2015). Silane-catalysed fast growth of large single-crystalline graphene on hexagonal boron nitride. Nature Communications, 6, 6499-. doi:10.1038/ncomms7499
Series/Report no.: Nature Communications
Abstract: The direct growth of high-quality, large single-crystalline domains of graphene on a dielectric substrate is of vital importance for applications in electronics and optoelectronics. Traditionally, graphene domains grown on dielectrics are typically only ~1 μm with a growth rate of ~1 nm min−1 or less, the main reason is the lack of a catalyst. Here we show that silane, serving as a gaseous catalyst, is able to boost the graphene growth rate to ~1 μm min−1, thereby promoting graphene domains up to 20 μm in size to be synthesized via chemical vapour deposition (CVD) on hexagonal boron nitride (h-BN). Hall measurements show that the mobility of the sample reaches 20,000 cm2 V−1 s−1 at room temperature, which is among the best for CVD-grown graphene. Combining the advantages of both catalytic CVD and the ultra-flat dielectric substrate, gaseous catalyst-assisted CVD paves the way for synthesizing high-quality graphene for device applications while avoiding the transfer process.
DOI: 10.1038/ncomms7499
Rights: © 2015 Macmillan Publishers Limited. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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