Please use this identifier to cite or link to this item:
|Title:||Photocurrent characteristics of individual GeSe2 nanobelt with Schottky effects||Authors:||Mukherjee, B.
|Issue Date:||2013||Citation:||Mukherjee, B., Tok, E.S., Sow, C.H. (2013). Photocurrent characteristics of individual GeSe2 nanobelt with Schottky effects. Journal of Applied Physics 114 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4823779||Abstract:||Single crystal GeSe2 nanobelts (NBs) were successfully grown using chemical vapor deposition techniques. The morphology and structure of the nanostructures were characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffractometry, and Raman spectroscopy. Electronic transport properties, photoconductive characteristics, and temperature-dependent electronic characteristics were examined on devices made of individual GeSe2 nanobelt. The current increased by three orders of magnitude upon laser irradiation (wavelength 532 nm and intensity ∼6.8 mW/cm2) with responsivity of ∼2764 A/W at fixed 4 V bias. Localized photoconductivity study shows that the large photoresponse of the device primarily occurs at the metal-NB contact regions. In addition, the electrically Schottky nature of nanobelt/Au contact and p-type conductivity nature of GeSe2 nanobelt are extracted from the current-voltage characteristics and spatially resolved photocurrent measurements. The high sensitivity and quick photoresponse in the visible wavelength range indicate potential applications of individual GeSe2 nanobelt devices in realizing optoelectronic switches. © 2013 AIP Publishing LLC.||Source Title:||Journal of Applied Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/97532||ISSN:||00218979||DOI:||10.1063/1.4823779|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 9, 2021
WEB OF SCIENCETM
checked on Jun 2, 2021
checked on Jun 8, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.