Please use this identifier to cite or link to this item: https://doi.org/10.1021/am201022v
Title: Covalent assembly of gold nanoparticles for nonvolatile memory applications
Authors: Gupta, R.K.
Kusuma, D.Y.
Lee, P.S.
Srinivasan, M.P. 
Keywords: covalent assembly
functionalization
gold nanoparticles
nonvolatile memory
Issue Date: 28-Dec-2011
Citation: Gupta, R.K., Kusuma, D.Y., Lee, P.S., Srinivasan, M.P. (2011-12-28). Covalent assembly of gold nanoparticles for nonvolatile memory applications. ACS Applied Materials and Interfaces 3 (12) : 4619-4625. ScholarBank@NUS Repository. https://doi.org/10.1021/am201022v
Abstract: This work reports a versatile approach for enhancing the stability of nonvolatile memory devices through covalent assembly of functionalized gold nanoparticles. 11-mercapto-1-undecanol functionalized gold nanoparticles (AuNPs) with a narrow size distribution and particle size of about 5 nm were synthesized. Then, the AuNPs were immobilized on a SiO 2 substrate using a functionalized polymer as a surface modifier. Microscopic and spectroscopic techniques were used to characterize the AuNPs and their morphology before and after immobilization. Finally, a metal-insulator- semiconductor (MIS) type memory device with such covalently anchored AuNPs as a charge trapping layer was fabricated. The MIS structure showed well-defined counterclockwise C-V hysteresis curves indicating a good memory effect. The flat band voltage shift was 1.64 V at a swapping voltage between ±7 V. Furthermore, the MIS structure showed a good retention characteristic up to 20 000 s. The present synthetic route to covalently immobilize gold nanoparticles system will be a step towards realization for the nanoparticle-based electronic devices and related applications. © 2011 American Chemical Society.
Source Title: ACS Applied Materials and Interfaces
URI: http://scholarbank.nus.edu.sg/handle/10635/88709
ISSN: 19448244
DOI: 10.1021/am201022v
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

18
checked on Jul 14, 2018

WEB OF SCIENCETM
Citations

15
checked on Jul 4, 2018

Page view(s)

31
checked on May 18, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.