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Direct growth of nanographene at low temperature from carbon black for highly sensitive temperature detectors.
- Source :
-
Nanotechnology . 12/16/2016, Vol. 27 Issue 50, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- Graphene has attracted tremendous research interest owing to its widespread potential applications. However, these applications are partially hampered by the lack of a general method to produce high-quality graphene at low cost. Here, to the best of our knowledge, we use low-cost solid carbon allotropes as the precursor in plasma-enhanced chemical vapor deposition (PECVD) for the first time, and find that the hydrogen plasma and reaction temperature play a crucial role in the process. Hydrogen plasma etches carbon black, and produces graphene crystals in a high-temperature zone. Based on this finding, a modified PECVD technology is developed, which produces transparent conductive nanographene films directly on various substrates at a temperature as low as 600 °C. For application, the closely packed structure of the nanographene film enables a remarkable temperature-dependent behavior of the resistance with a ratio higher than that previously reported, indicating its great potential for usage in highly sensitive temperature detectors. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GRAPHENE
*CHEMICAL vapor deposition
*CARBON-black
Subjects
Details
- Language :
- English
- ISSN :
- 09574484
- Volume :
- 27
- Issue :
- 50
- Database :
- Academic Search Index
- Journal :
- Nanotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 119615069
- Full Text :
- https://doi.org/10.1088/0957-4484/27/50/505603