Journal
APPLIED PHYSICS LETTERS
Volume 92, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2896602
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We demonstrate an organic memory-transistor device based on a pentacene-gold nanoparticles active layer. Gold (Au) nanoparticles are immobilized on the gate dielectric (silicon dioxide) of a pentacene transistor by an amino-terminated self-assembled monolayer. Under the application of writing and erasing pulses on the gate, large threshold voltage shift (22 V) and on/off drain current ratio of similar to 3x10(4) are obtained. The hole field-effect mobility of the transistor is similar in the on and off states (less than a factor of 2). Charge retention times up to 4500 s are observed. The memory effect is mainly attributed to the Au nanoparticles. (c) 2008 American Institute of Physics.
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