Charging phenomena in pentacene-gold nanoparticle memory device

The authors demonstrate a new organic memory system, using pentacene as the active semiconductor layer and citrate-stabilized gold (Au) nanoparticles as charge storage elements. A pronounced clockwise capacitance-voltage (C-V) hysteresis is observed with a memory window...

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Bibliographic Details
Main Authors: Leong, W. L., Lee, Pooi See, Mhaisalkar, Subodh Gautam, Chen, Tupei, Dodabalapur, Ananth
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2012
Subjects:
Online Access:https://hdl.handle.net/10356/94158
http://hdl.handle.net/10220/8064
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Institution: Nanyang Technological University
Language: English
Description
Summary:The authors demonstrate a new organic memory system, using pentacene as the active semiconductor layer and citrate-stabilized gold (Au) nanoparticles as charge storage elements. A pronounced clockwise capacitance-voltage (C-V) hysteresis is observed with a memory window of 1.25–2.05 V achievable under 5–10 V programing range. Similar clockwise C-V hysteresis window and an almost constant full width at half maximum of the conductance peaks in conductance-voltage (G-V) characteristics, obtained in the frequency range of 50 kHz–1 MHz, indicated that positive charge trapping/detrapping originated mainly from the Au nanoparticles.