Document Detail

Influence of electrical contacts on the 1/f noise in individual multi-walled carbon nanotubes.
MedLine Citation:
PMID:  20657038     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Low-frequency noise of individual MWNTs was investigated with different metal electrodes. Irrespective of the ohmic or non-ohmic voltage-current characteristics, a strong dependence of the noise on the metal contacts was observed. The good electrical contacts with Pd or Pt electrodes enable a quasi-ballistic transport with a bigger exponent in the relation of S1 alpha R4.8, similar to 2D metallic film or graphene. On the other hand, the noise in the case of Cr or Ti electrodes is almost linear with the resistance of the nanotubes, which may be an index of the influence of the contacts in the CNTs.
Kanghyun Kim; Doyoung Jang; Kangho Lee; Haeyong Kang; Byung Yong Yu; Jung Il Lee; Gyu Tae Kim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-26
Journal Detail:
Title:  Nanotechnology     Volume:  21     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-27     Completed Date:  2010-11-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  335702     Citation Subset:  -    
School of Electrical Engineering, Korea University, Sungbuk-gu, Seoul 136-701, Korea.
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