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Electric-field-induced charge transfer between gold nanoparticle and capping 2-naphthalenethiol and organic memory cells

Authors :
Douglas Sieves
Chih-Wei Chu
Jianyong Ouyang
Yang Yang
Source :
Applied Physics Letters. 86:123507
Publication Year :
2005
Publisher :
AIP Publishing, 2005.

Abstract

An electrical transition, induced by a high electric field, was observed in a device consisting of a polystyrene film containing 2-naphthalenethiol-capped Au nanoparticles sandwiched between two Al electrodes. The current through the device changed from a charge-injection-controlled current to a space-charge-limited current. The latter current is higher than the former by more than three orders of magnitude at 2 V. Asymmetrical current-voltage curve was observed along the two polarity directions for the device after the transition. This transition is attributed to an electric-field-induced charge transfer between the Au nanoparticle and the capping 2-naphthalenethiol. The device exhibits good stability in the high conductivity state, so it can be used as a write-once-read-many times electronic memory.

Details

ISSN :
10773118 and 00036951
Volume :
86
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........0d92308184fde8f31097898f19a86f10
Full Text :
https://doi.org/10.1063/1.1887819