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Position dependent photodetector from large area reduced graphene oxide thin films
Open accessAbstract
We fabricated large area infrared photodetector devices from thin film of chemically reduced graphene oxide (RGO) sheets and studied their photoresponse as a function of laser position. We found that the photocurrent either increases, decreases, or remain almost zero depending upon the position of the laser spot with respect to the electrodes. The position sensitive photoresponse is explained by Schottky barrier modulation at the RGO film-electrode interface. The time response of the photocurrent is dramatically slower than single sheet of graphene possibly due to disorder from the chemical synthesis and interconnecting sheets.
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Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
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Graphene–MoS2 hybrid structures for multifunctional photoresponsive memory devices
Roy, K., Padmanabhan, M., Goswami, S., Sai, T. P., Ramalingam, G., Raghavan, S., & Ghosh, A. (2013) · Nature Nanotechnology · doi:10.1038/nnano.2013.206 · Cited by 1,436
Graphene-based hybrid materials and devices for biosensing
Artiles, M. S., Rout, C. S., & Fisher, T. S. (2011) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2011.07.005 · Cited by 274
Metadata
- Authors
- Ghosh, S., Sarker, B. K., Chunder, A., Zhai, L., & Khondaker, S. I.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2010-04-19
- Volume
- 96
- Issue
- 16
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1991316312
- Cited by
- 195
- References
- 1
- FWCI
- 7.57
- Type
- journal article
- Language
- en
- Open access
- green
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- Ghosh, S., Sarker, B. K., Chunder, A., Zhai, L., & Khondaker, S. I. (2010). Position dependent photodetector from large area reduced graphene oxide thin films. Applied Physics Letters. https://doi.org/10.1063/1.3415499
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