Journal
NANOTECHNOLOGY
Volume 22, Issue 33, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/22/33/335302
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Funding
- Japanese Ministry of Education, Culture, Sports, Science and Technology
- World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan
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The electrical modification of a conductivity-switching polyimide film via molecular layer deposition (MLD) is studied for ultrahigh density data storage based on a scanning probe microscope (SPM). A PMDA-ODA (PMDA = 1,2,3,5-benzenetetracarboxylic anhydride, ODA = 4,4-oxydianiline) film as a recording medium is uniformly formed from a self-assembled monolayer on a Au surface by MLD. It is demonstrated that the conductivity of the film can be changed by applying a voltage between a SPM probe and the film. This conductivity-switching phenomenon is discussed by the molecular orbital approach and considered to be caused by the charge transfer effect or carrier trapping effect of PMDA-ODA.
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