The Geometrical Effect of Single Walled Carbon Nanotube Network Transistors on Low Frequency Noise Characteristics
- Title
- The Geometrical Effect of Single Walled Carbon Nanotube Network Transistors on Low Frequency Noise Characteristics
- Author
- 박완준
- Keywords
- Carbon Nanotubes; Network; Transistor; 1/f Noise; 1/F NOISE
- Issue Date
- 2011-08
- Publisher
- AMER SCIENTIFIC PUBLISHERS, 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY; JUL 2011, 11, 7, p6080-p6083, 4p.
- Abstract
- The noise characteristics of randomly networked single walled carbon nanotubes grown directly by plasma enhanced chemical vapor deposition with field effect transistor. Geometrical complexity due to the large number of tube-tube junctions in the nanotube network is expected to be one of the key factors for the noise power of 1/f dependence. We investigated low frequency noise as a function of channel length (2 similar to 10 mu m) and found that increased with longer channel length. Percolational behaviors of nanotube network that differs from ordinary semiconducting and metallic materials can be characterized by a geometrical picture with electrical homo- and hetero-junctions. Fixed nanotube density provides a test conditions to evaluate the contributions of junctions as a noise center. Hooge's empirical law is applied to investigate the low frequency noise characteristics of single walled carbon nanotube random network transistors. The noise power shows the dependence of the transistor channel length. It is understood that nanotube/nanotube junctions act as a noise center. However, the differences induced by channel length in the noise power are observed as not so significant. We conclude that tolerance of low frequency noise is important property for SWNT networks as an electronic device application.
- URI
- http://www.ingentaconnect.com/content/asp/jnn/2011/00000011/00000007/art00087http://hdl.handle.net/20.500.11754/37834
- ISSN
- 1533-4880
- DOI
- 10.1166/jnn.2011.4437
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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