Article Title

Catalyst-free growth of nanographene films on various substrates

Authors

Lianchang Zhang, Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Zhiwen Shi, Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China Surface Physics Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Yi Wang, Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China Surface Physics Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Rong Yang, Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Dongxia Shi, Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Guangyu Zhang, Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Keywords

Nanographene, catalyst-free, plasma enhancement chemical vapor deposition (PECVD), transparent and conductive film

Abstract

We have developed a new method to grow uniform graphene films directly on various substrates, such as insulators, semiconductors, and even metals, without using any catalyst. The growth was carried out using a remote plasma enhancement chemical vapor deposition (r-PECVD) system at relatively low temperatures, enabling the deposition of graphene films up to 4-inch wafer scale. Scanning tunneling microscopy (STM) confirmed that the films are made up of nanocrystalline graphene particles of tens of nanometers in lateral size. The growth mechanism for the nanographene is analogous to that for diamond grown by PECVD methods, in spite of sp2 carbon atoms being formed in the case of graphene rather than sp3 carbon atoms as in diamond. This growth approach is simple, low-cost, and scalable, and might have potential applications in fields such as thin film resistors, gas sensors, electrode materials, and transparent conductive films.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-010-0086-5

Publisher

Tsinghua University Press

Recommended Citation

Lianchang Zhang,Zhiwen Shi,Yi Wang,Rong Yang,Dongxia Shi,Guangyu Zhang, Catalyst-free growth of nanographene films on various substrates. NanoRes.2011, 4(3): 315–321