Directed nanoparticle reduction on graphene

Renu Pasricha; Shweta Gupta; Amish G. Joshi; Nupur Bahadur; Divi Haranath; Kedar N. Sood; Sukhvir Singh; Sandeep Singh

doi:10.1016/S1369-7021(12)70047-0

Directed nanoparticle reduction on graphene

Renu Pasricha, Shweta Gupta, Amish G. Joshi, Nupur Bahadur, Divi Haranath, Kedar N. Sood, Sukhvir Singh, Sandeep Singh

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Abstract

A simple, green mechanism for the UV assisted synthesis of graphene in the presence of phosphotungstic acid (PTA) is presented. The reduced graphene oxide (RGO) after UV exposure in the presence of PTA has been further identified as an efficient UV-absorber due to its complexation with PTA. This in turn could be used as an excellent template for the decoration of metal nanoparticles (NPs) on RGO. HRTEM analysis corroborates the localized reduction of metal NPs on the graphene matrix. The RGO-NP templated configurations further demonstrate an interesting microsecond delay of electron transfer from the recombination of electron-hole pairs; an enviable property for next generation optoelectronic devices.

Original language	English (US)
Pages (from-to)	118-125
Number of pages	8
Journal	Materials Today
Volume	15
Issue number	3
DOIs	https://doi.org/10.1016/S1369-7021(12)70047-0
State	Published - Mar 2012

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{f274ba75094a47daba4e014282be452e,

title = "Directed nanoparticle reduction on graphene",

abstract = "A simple, green mechanism for the UV assisted synthesis of graphene in the presence of phosphotungstic acid (PTA) is presented. The reduced graphene oxide (RGO) after UV exposure in the presence of PTA has been further identified as an efficient UV-absorber due to its complexation with PTA. This in turn could be used as an excellent template for the decoration of metal nanoparticles (NPs) on RGO. HRTEM analysis corroborates the localized reduction of metal NPs on the graphene matrix. The RGO-NP templated configurations further demonstrate an interesting microsecond delay of electron transfer from the recombination of electron-hole pairs; an enviable property for next generation optoelectronic devices.",

author = "Renu Pasricha and Shweta Gupta and Joshi, {Amish G.} and Nupur Bahadur and Divi Haranath and Sood, {Kedar N.} and Sukhvir Singh and Sandeep Singh",

note = "Funding Information: Shweta Gupta and Dr Nupur Bahadur thank the Department of Science and Technology (DST), Government of India for the research fellowship and DST Young Scientist fellowship respectively. The authors' gratefully acknowledge Prof. R.C. Budhani, Director NPL for the kind support and valuable suggestions. We thank Ms Neha Chauhan's support during experiments.",

year = "2012",

month = mar,

doi = "10.1016/S1369-7021(12)70047-0",

language = "English (US)",

volume = "15",

pages = "118--125",

journal = "Materials Today",

issn = "1369-7021",

publisher = "Elsevier B.V.",

number = "3",

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TY - JOUR

T1 - Directed nanoparticle reduction on graphene

AU - Pasricha, Renu

AU - Gupta, Shweta

AU - Joshi, Amish G.

AU - Bahadur, Nupur

AU - Haranath, Divi

AU - Sood, Kedar N.

AU - Singh, Sukhvir

AU - Singh, Sandeep

N1 - Funding Information: Shweta Gupta and Dr Nupur Bahadur thank the Department of Science and Technology (DST), Government of India for the research fellowship and DST Young Scientist fellowship respectively. The authors' gratefully acknowledge Prof. R.C. Budhani, Director NPL for the kind support and valuable suggestions. We thank Ms Neha Chauhan's support during experiments.

PY - 2012/3

Y1 - 2012/3

N2 - A simple, green mechanism for the UV assisted synthesis of graphene in the presence of phosphotungstic acid (PTA) is presented. The reduced graphene oxide (RGO) after UV exposure in the presence of PTA has been further identified as an efficient UV-absorber due to its complexation with PTA. This in turn could be used as an excellent template for the decoration of metal nanoparticles (NPs) on RGO. HRTEM analysis corroborates the localized reduction of metal NPs on the graphene matrix. The RGO-NP templated configurations further demonstrate an interesting microsecond delay of electron transfer from the recombination of electron-hole pairs; an enviable property for next generation optoelectronic devices.

AB - A simple, green mechanism for the UV assisted synthesis of graphene in the presence of phosphotungstic acid (PTA) is presented. The reduced graphene oxide (RGO) after UV exposure in the presence of PTA has been further identified as an efficient UV-absorber due to its complexation with PTA. This in turn could be used as an excellent template for the decoration of metal nanoparticles (NPs) on RGO. HRTEM analysis corroborates the localized reduction of metal NPs on the graphene matrix. The RGO-NP templated configurations further demonstrate an interesting microsecond delay of electron transfer from the recombination of electron-hole pairs; an enviable property for next generation optoelectronic devices.

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UR - http://www.scopus.com/inward/citedby.url?scp=84859023248&partnerID=8YFLogxK

U2 - 10.1016/S1369-7021(12)70047-0

DO - 10.1016/S1369-7021(12)70047-0

M3 - Article

AN - SCOPUS:84859023248

SN - 1369-7021

VL - 15

SP - 118

EP - 125

JO - Materials Today

JF - Materials Today

IS - 3

ER -

Directed nanoparticle reduction on graphene

Abstract

ASJC Scopus subject areas

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