20 mA bidirectional laser triggering in planar devices based on vanadiumdioxide thin films using CO2 laser

Collection with item attached
2015
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/473413.do
DOI
10.1364/OE.23.014234
Title
20 mA bidirectional laser triggering in planar devices based on vanadiumdioxide thin films using CO2 laser
Description
This work was supported by the National Research Foundation ofKorea(NRF) grant funded by the Korea government(MSIP) (No.2013R1A2A2A01068390).
abstract
By utilizing a CO2 laser centered at similar to 10.6 mu m as an optical stimulus, we demonstrated bidirectional laser triggering in a two-terminal planar device based on a highly resistive vanadium dioxide ( VO2) thin film. The break-over voltage of the VO2-based device was measured as large as similar to 294.8 V, which resulted from the high resistivity of insulating VO2 grains comprising the thin film and the large electrode separation of the device. The bidirectional current switching of up to 20 mA was achieved by harnessing the dramatic resistance variation of the device photo-thermally induced by the laser illumination. The transient responses of laser-triggered currents were also analyzed when laser pulses excited the device at a variety of pulse widths and repetition rates. In the transient responses, a maximum switching contrast between off- and on-state currents was measured as similar to 7067 with an off-state current of similar to 2.83 mu A, and rising and falling times were measured as similar to 30 and similar to 16 ms, respectively, for 100 ms laser pulses. (C)2015 Optical Society of America
provenance
Made available in Cube on 2018-09-28T10:18:51Z (GMT). No. of bitstreams: 0
language
English
author
Kim, Jihoon
Jo, Songhyun
Park, Kyongsoo
Song, Ha-Joo
Kim, Hyun-Tak
Kim, Bong-Jun
Lee, Yong Wook
accessioned
2018-09-28T10:18:51Z
available
2018-09-28T10:18:51Z
issued
2015
citation
OPTICS EXPRESS(23): 11
issn
1094-4087
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/473413.do
Funder
미래창조과학부
Funding Program
한국전자통신연구원연구운영비지원
Project ID
1711032866
Jurisdiction
Rep.of Korea
Project Name
ETRI 창의연구실 사업
rights
openAccess
type
article


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