Uniform and Conformal Carbon Nanofilms Produced Based on Molecular Layer Deposition

Peng Yang, Guizhen Wang, Zhe Gao, He Chen, Yong Wang, Yong Qin

科研成果: 期刊稿件文章同行评审

24 引用 (Scopus)

摘要

Continuous and uniform carbon nanofilms (CNFs) are prepared by pyrolysis of polyimide films which are produced by molecular layer deposition (MLD). The film thickness can be easily controlled at nanometer scale by altering the cycle numbers. During the annealing process at 600 oC, the polyimide film is subject to shrinkage of 70% in thickness. The obtained CNFs do not exhibit a well-graphitized structure due to the low calcination temperature. No clear pore structures are observed in the produced films. CNFs grown on a glass substrate with a thickness of about 1.4 nm shows almost 98% optical transmittance in the visible spectrum range. Au nanoparticles coated with CNFs are produced by this method. Carbon nanotubes with uniform wall thickness are obtained using anodic aluminum oxide as a template by depositing polyimide films into its pores. Our results demonstrate that this method is very effective to coat conformal and uniform CNFs on various substrates, such as nanoparticles and porous templates, to produce functional composite nanomaterials.

源语言英语
页(从-至)5602-5612
页数11
期刊Materials
6
12
DOI
出版状态已出版 - 2013
已对外发布

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