Imparting photosensitivity through decoration of nanoparticle on reduced graphene oxide

• Main Authors: Wei, J., Tjoa, Verawati, Mathews, Nripan, Mhaisalkar, Subodh Gautam
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/100774; http://hdl.handle.net/10220/13687
• Institution: Nanyang Technological University

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.