Hot-carrier photocurrent effects at graphene–metal interfaces
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Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/76496
Tipus de documentArticle
Data publicació2015-03-02
EditorIOP
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
ProjecteNANOANTENNAS - Nano-Optical Antennas for Tuneable Single Photon Super-Emitters (EC-FP7-247330)
GRANOP - Graphene Nano-Photonics (EC-FP7-294056)
CARBONLIGHT - Tunable light tightly bound to a single sheet of carbon atoms: graphene as a novel platform for nano-optoelectronics (EC-FP7-307806)
GRAPHENE - Graphene-Based Revolutions in ICT And Beyond (EC-FP7-604391)
GRANOP - Graphene Nano-Photonics (EC-FP7-294056)
CARBONLIGHT - Tunable light tightly bound to a single sheet of carbon atoms: graphene as a novel platform for nano-optoelectronics (EC-FP7-307806)
GRAPHENE - Graphene-Based Revolutions in ICT And Beyond (EC-FP7-604391)
Abstract
Photoexcitation of graphene leads to an interesting sequence of phenomena, some of which can be exploited in optoelectronic devices based on graphene. In particular, the efficient and ultrafast generation of an electron distribution with an elevated electron temperature and the concomitant generation of a photo-thermoelectric voltage at symmetry-breaking interfaces is of interest for photosensing and light harvesting. Here, we experimentally study the generated photocurrent at the graphene–metal interface, focusing on the time-resolved photocurrent, the effects of photon energy, Fermi energy and light polarization. We show that a single framework based on photo-thermoelectric photocurrent generation explains all experimental results.
ISSN0953-8984
Versió de l'editorhttp://iopscience.iop.org/0953-8984/27/16/164207/pdf/cm_27_16_164207.pdf
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0953-8984_27_16_164207.pdf | 1,695Mb | Visualitza/Obre |