Dendrimer-encapsulated Pt nanoparticles in supercritical medium : synthesis, characterization, and application to device fabrication

Dendrimer-encapsulated Pt nanoparticles in supercritical medium : synthesis, characterization, and application to device fabrication

In this work we describe a general method for formation of Pt nanoparticles within an ultrathin film matrix and its application for non-volatile memory (NVM). Our approach involves the formation of Pt nanoparticles within ultrathin film matrix formed by covalent layer-by-layer (LbL) assembly of pyro...

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Bibliographic Details
Main Authors: Srinivasan, M. P., Puniredd, Sreenivasa Reddy, Yin, Chan Mei, Hooi, Yeong Sai, Lee, Pooi See
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2013
Subjects:
DRNTU::Science::Physics::Nuclear and particle physics
Online Access:https://hdl.handle.net/10356/97332
http://hdl.handle.net/10220/10488
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Institution: Nanyang Technological University
Language: English
Description
Summary:In this work we describe a general method for formation of Pt nanoparticles within an ultrathin film matrix and its application for non-volatile memory (NVM). Our approach involves the formation of Pt nanoparticles within ultrathin film matrix formed by covalent layer-by-layer (LbL) assembly of pyromellitic dianhydride (PMDA) and second generation of polyamidoamine (PAMAM) dendrimer in supercritical carbon dioxide (SCCO2). The hyperbranched component in the film structure serves to confine nanoparticle size and improve distribution. The memory effect and retention capability is demonstrated by means of a metal-insulator semiconductor (MIS) device fabricated using the nanoparticle-laden thin film as the insulating layer.

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