Directed nanoparticle reduction on graphene

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

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Pages (from-to)118-125
Number of pages8
JournalMaterials Today
Volume15
Issue number3
DOIs
StatePublished - Mar 2012

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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