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Issue 10, 2013
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Charge storage and electron transport properties of gold nanoparticles decorating a urethane-methacrylate comb polymer network

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Abstract

We propose enhanced charge storage capacity of nanoparticles based polymer films. A flat band voltage window varying from 5–7 V is obtained leading to a trapped charge density of the order of 1013 cm−2. These results vary for two distinct morphologies obtained due to decoration of a urethane-methacrylate comb polymer (UMCP) network by gold nanoparticles (AuNPs). Films have been further investigated for morphology, optical, charge storage, and electron transport properties using techniques like scanning electron microscopy (SEM), atomic force microscopy (AFM), absorption spectroscopy (UV-Vis), scanning tunneling microscopy/spectroscopy (STM/STS) and capacitance versus voltage (CV) measurements. SEM and AFM confirm either the deposition of AuNPs inside the UMCP network or the formation of ring like structures depending on the deposition sequence. STS measurements performed on both films are compared with bare UMCP and AuNPs films. Current versus voltage (IV) characteristics so obtained are discussed in the light of electron transport mechanisms in such materials.

Graphical abstract: Charge storage and electron transport properties of gold nanoparticles decorating a urethane-methacrylate comb polymer network

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Publication details

The article was received on 18 Jan 2013, accepted on 06 Mar 2013 and first published on 12 Mar 2013


Article type: Paper
DOI: 10.1039/C3NR00330B
Nanoscale, 2013,5, 4404-4411

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    Charge storage and electron transport properties of gold nanoparticles decorating a urethane-methacrylate comb polymer network

    S. Patil, S. Datar, N. Rekha, S. K. Asha and C. V. Dharmadhikari, Nanoscale, 2013, 5, 4404
    DOI: 10.1039/C3NR00330B

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