Please use this identifier to cite or link to this item:
|Title:||Photothermoelectric effects in localized photocurrent of individual vo 2 nanowires||Authors:||Varghese, B.
|Issue Date:||9-Sep-2010||Citation:||Varghese, B., Tamang, R., Tok, E.S., Mhaisalkar, S.G., Sow, C.H. (2010-09-09). Photothermoelectric effects in localized photocurrent of individual vo 2 nanowires. Journal of Physical Chemistry C 114 (35) : 15149-15156. ScholarBank@NUS Repository. https://doi.org/10.1021/jp1051936||Abstract:||Photocurrent studies of individual and isolated VO2 nanowires (NWs) with Pt metal contacts were conducted by using a focused laser beam. With localized probing, the photoresponse arising from the NW-Pt contact junctions and the main body of the NW can be separately examined. Rapid photoresponse (with and without bias) toward visible and infrared laser irradiation was observed to arise primarily from the NW-Pt contacts. Experiments at elevated temperature (above the semiconductor-metal transition temperature of VO 2) revealed a remarkable ∼500 fold enhancement in the photocurrent generated at the NW-Pt contact junctions at zero external bias. Photoinduced thermoelectric effect is proposed as the key carrier transport mechanism dictating the photocurrent generated at the NW-Pt interface. ©2010 American Chemical Society.||Source Title:||Journal of Physical Chemistry C||URI:||http://scholarbank.nus.edu.sg/handle/10635/97544||ISSN:||19327447||DOI:||10.1021/jp1051936|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.