Journal
CHEMICAL PHYSICS LETTERS
Volume 593, Issue -, Pages 198-203Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2014.01.012
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Funding
- TWAS, Italy [11-023 RG/PHYS/AS]
- Nihon University 'N.' Research Project
- Grants-in-Aid for Scientific Research [24550163] Funding Source: KAKEN
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A sharp response of infrared light detecting capability is observed in reduced graphene oxide based photodetector. The photoresponse increased with increasing solution concentration and annealing duration, at a low percolation. The photocurrent increases considerably before saturation and persists for a maximum time of 26 min. This Letter also reports on superiority of device performance with continuous annealing over annealing with an interval. A maximum photoresponsivity of 0.55 A/W and external quantum efficiency of 57% was achieved at low power light intensity (0.8 mW/cm(2)). This Letter presents an efficient graphene oxide thin film infrared photodetector processed via a modified synthesis protocol. (C) 2014 Elsevier B. V. All rights reserved.
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