Abstract

In this work, the manufacturing andcharacterization of an optically transparent and UV-Iightphotoactive anode, formed of monolayer graphene grown bychemical vapor deposition (CVD) and decorated with a closepacked multHayered nanostructured layout of colloidal TiOznanocrystals (NCs), are reported. The hybrid material has beenprepared by a facHe solution-based procedure, which relays onsoaking the CVD graphene in a solution of I-pyrene butyric acid(PBA) surface coated Ti02 NCs, achieved upon implementationof a capping exchange process for displacing the pristine organicligand deriving from the colloidal synthesis. Pyrene undergoes 'It-'It stacking interactions, anchoring the NCs to the platform withretention of the NC geometry and composition. The NCsimmobilize onto the graphene platform with preservation of itsaromatic structure and the resulting hybrid has been foundoptically transparent in the visible spectral range.(Photo)electrochemical investigation shows that the compositematerial has a promising sensitivity for selectively detectingdopamine and norepinephrine and, concomitantly, exhibits a(photo)electric activity higher than that of bare graphene. Thus,the achieved hybrid material results interesting for themanufacturing of photo-active components to integrate in photorenewable sensor elements along with photodetectors and solarcells

Autore Pugliese

• Ingrosso Chiara , Striccoli Marinella , Comparelli Roberto

Tutti gli autori

• Ingrosso C.; Bianco G. V.; Pifferi V.; Guffanti P.; Petronella F.; Comparelli R.; Agostiano A.; Agostiano A.; Striccoli M.; Palchetti I.; Falciola L.; Curri M. L.; Bruno G.

Titolo volume/Rivista

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Anno di pubblicazione

2016

ISSN

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ISBN

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Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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