Highly Efficient Rubrene-Graphene Charge-Transfer Interfaces as Phototransistors in the Visible Regime

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 29(2017), 41 vom: 25. Nov.
1. Verfasser: Jones, Gareth F (VerfasserIn)
Weitere Verfasser: Pinto, Rui M, De Sanctis, Adolfo, Nagareddy, V Karthik, Wright, C David, Alves, Helena, Craciun, Monica F, Russo, Saverio
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article graphene phototransistors high quantum efficiency organic single crystals photodetectors rubrene
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520 |a Atomically thin materials such as graphene are uniquely responsive to charge transfer from adjacent materials, making them ideal charge-transport layers in phototransistor devices. Effective implementation of organic semiconductors as a photoactive layer would open up a multitude of applications in biomimetic circuitry and ultra-broadband imaging but polycrystalline and amorphous thin films have shown inferior performance compared to inorganic semiconductors. Here, the long-range order in rubrene single crystals is utilized to engineer organic-semiconductor-graphene phototransistors surpassing previously reported photogating efficiencies by one order of magnitude. Phototransistors based upon these interfaces are spectrally selective to visible wavelengths and, through photoconductive gain mechanisms, achieve responsivity as large as 107 A W-1 and a detectivity of 9 × 1011 Jones at room temperature. These findings point toward implementing low-cost, flexible materials for amplified imaging at ultralow light levels 
650 4 |a Journal Article 
650 4 |a graphene phototransistors 
650 4 |a high quantum efficiency 
650 4 |a organic single crystals 
650 4 |a photodetectors 
650 4 |a rubrene 
700 1 |a Pinto, Rui M  |e verfasserin  |4 aut 
700 1 |a De Sanctis, Adolfo  |e verfasserin  |4 aut 
700 1 |a Nagareddy, V Karthik  |e verfasserin  |4 aut 
700 1 |a Wright, C David  |e verfasserin  |4 aut 
700 1 |a Alves, Helena  |e verfasserin  |4 aut 
700 1 |a Craciun, Monica F  |e verfasserin  |4 aut 
700 1 |a Russo, Saverio  |e verfasserin  |4 aut 
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