Title:
MULTIPLE LIGHT SENSOR AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2017/014329
Kind Code:
A1
Abstract:
Disclosed is a multiple light sensor comprising: piezoelectric material; first and second detecting film, arranged on the piezoelectric material with a separation distance therebetween, for receiving ultraviolet light and visible light, respectively, and changing the propagation velocity of elastic waves which have propagated through the piezoelectric material; and first and second elastic wave output units, arranged on the piezoelectric material so as to correspond one-to-one with the first and second detecting film, for generating electrical signals on the basis of changed elastic waves. Accordingly, the multiple light sensor can measure the strengths of the ultraviolet light and visible light by means of a single sensor by detecting changes in frequency, and as the change in frequency is measured by means of zinc oxide (ZnO), gallium nitride (GaN) or cadmium sulfide (CdS) nanoparticles, cost competitiveness can be assured.
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Inventors:
KIM KUN NYUN (KR)
KWAK YEON HWA (KR)
OH HAE KWAN (KR)
KWAK YEON HWA (KR)
OH HAE KWAN (KR)
Application Number:
PCT/KR2015/007466
Publication Date:
January 26, 2017
Filing Date:
July 17, 2015
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
G01J1/42; H01L31/0256
Foreign References:
| US20090289395A1 | 2009-11-26 | |||
| US20120058546A1 | 2012-03-08 | |||
| JPH09243618A | 1997-09-19 | |||
| US20030201694A1 | 2003-10-30 | |||
| US20050116263A1 | 2005-06-02 |
Attorney, Agent or Firm:
JUNG, Bu Yon (KR)
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