Tunable functionalization of graphene nanosheets for graphene-organic hybrid photodetectors. (20th January 2016)

• Record Type: Journal Article
• Authors: Kim, Seong Jun; Song, Wooseok; Kim, Sungho; Kang, Min-A; Myung, Sung; Sook Lee, Sun; Lim, Jongsun; An, Ki-Seok
• Is Part Of: Nanotechnology. Volume 27:Number 7(2016)
• Publication Date: 2016-01-20
• Subjects: graphene -- photodetectors -- functionalization -- porphyrin -- hybrid thin film; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/0957-4484/27/7/075709
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Graphene-organic hybrid thin films are promising candidates for use as advanced transparent electrodes and high-performance photodetectors. In this work, we fabricated hybrid thin film structures consisting of graphene and either tetraphenyl-porphyrin (H2 TPP) or metalloporphyrins such as aluminum (III) tetraphenyl-porphyrin (Al(III)TPP) and zinc tetraphenyl-porphyrin (ZnTPP). The optical and electrical characteristics of ultrathin photodetectors based on the graphene-organic hybrid layers were subsequently evaluated. A hybrid deposition system capable of both thermal evaporation and vapor phase metalation was employed to synthesize the tunable metalloporphyrin-based thin films. As a proof of concept, we successfully fabricated various graphene-based photodetectors via the simple and efficient vapor-phase metalation of porphyrin . This work may facilitate the development of new architectures for flexible graphene-organic devices.