Imparting photosensitivity through decoration of nanoparticle on reduced graphene oxide
Mhaisalkar, Subodh Gautam
Date of Issue2012
School of Materials Science and Engineering
Singapore Institute of Manufacturing Technology
Attachment of metal nanoparticles to reduced graphene oxide (rGO) results in formation of a hybrid material which opens a new pathway to positively modify rGO properties. We decorated rGO with gold nanoparticle (Au-rGO) and fabricated visible-light detector devices utilizing thin film of the hybrid material. We found that the photo current increases with illumination and decreases in dark. The photosensitivity of Au-rGO hybrid is explained by positive synergy of plasmonic gold nanoparticle with rGO as conduction matrix. This study explores the prospect of photo induced carrier transfer in rGO hybrid.
Nanoscience and nanotechnology letters