A Photoresponsive Hybrid Nanomaterial Based on Graphene and Polyhedral Oligomeric Silsesquioxanes

作者：Valentini Luca^*; Cardinali Marta; Kenny Jose M; Prato Mirko; Monticelli Orietta

来源：European Journal of Inorganic Chemistry, 2012, (32): 5282-5287.

DOI：10.1002/ejic.201200260

• Graphene
• Silicon
• Nanostructures
• Surface chemistry
• Photoresponse

A novel nanomaterial that consists of graphene sheets decorated with silsesquioxane molecules has been developed. Aminopropyl-silsesquioxane (POSS-NH2) has been employed to functionalize graphene oxide (GO) sheets. The surface grafting of the GO sheets with POSS-NH2 was established by IR spectroscopy and X-ray photoelectron spectroscopy, and the morphology was investigated by field-emission electron microscopy as well as by atomic force microscopy. The combination of amino-functionalized POSS molecules with GO sheets produces a hybrid silicon/graphite-based nanomaterial, named GRAPOSS. When exposed to visible light the hybrid showed a photoconductivity response.

• 出版日期2012-11