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Control of resonant wavelength from organic light-emitting materials by use of a Fabry-Perot microcavity structure

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Authors
Jung, Boo Young; Kim, Nam Young; Lee, Changhee; Hwangbo, Chang Kwon; Seoul, Chang
Issue Date
2002
Publisher
Optical Society of America
Citation
Appl. Opt. 41, 3312-3318
Abstract
We report the fabrication of Fabry–Perot microcavity structures with the organic light-emitting material
tris- 8-hydroxyquinoline aluminum Alq3 and derive their optical properties by measuring their photoluminescence
PL and absorption. Silver and a TiO2–SiO2 multilayer were used as metal and dielectric
reflectors, respectively, in a Fabry–Perot microcavity structure. Three types of microcavity were
prepared: type A consisted of air Ag Alq3 Ag glass ; type B, of air dielectric Alq3 dielectric glass ; and
type C, of air Ag Alq3 dielectric glass . A bare Alq3 film of air Alq3 glass had its PL peak near 514 nm,
and its full width at half-maximum FWHM was 80 nm. The broad FWHM of a bare Alq3 film was
reduced to 15–27.5, 7–10.5, and 16–16.6 nm for microcavity types A, B, and C, respectively. Also, we
could control the PL peak of the microcavity structure by changing the spacer thickness, the amount of
phase change on reflection, and the angle of incidence.
ISSN
0003-6935
Language
English
URI
http://hdl.handle.net/10371/13719
DOI
https://doi.org/10.1364/AO.41.003312
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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