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Optical Properties of Microcavity Structures using the Organic Light Emitting Materials

Published online by Cambridge University Press:  14 March 2011

Boo Young Jung ,
Nam Young Kim ,
Chang Hee Lee ,
Chang Kwon Hwangbo  and
Chang Seoul
Boo Young Jung
Affiliation:
Department of Physics, Inha University, Inchon 402-751, Republic of Korea
Nam Young Kim
Affiliation:
Department of Physics, Inha University, Inchon 402-751, Republic of Korea
Chang Hee Lee
Affiliation:
Department of Physics, Inha University, Inchon 402-751, Republic of Korea
Chang Kwon Hwangbo
Affiliation:
Department of Physics, Inha University, Inchon 402-751, Republic of Korea
Chang Seoul
Affiliation:
Department of Textile Engineering, Inha University, Inchon 402-751, Republic of Korea
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Abstract

We investigated the optical properties of Fabry-Perot microcavity with a tris(8- hydroxyquinoline)aluminum (Alq3) organic film by measuring the photoluminescence (PL) and transmittance. An Alq3 layer as an active layer was sandwiched between two mirrors, which were metal or (TiO2|SiO2) dielectric multilayer reflectors. An Alq3 layer on glass, [air|Alq3|glass], showed a PL peak around 513 nm and its full width half maximum (FWHM) was about 80 nm. Three types of microcavity, such as Type A [air|metal|Alq3|metal|glass], Type B [air|dielectric|Alq3|dielectric|glass], and Type C [air|metal|Alq3|dielectric|glass], were fabricated. The result shows that the FWHMs of three Fabry-Perot microcavities were reduced to 15∼27.5, 7∼10.5 and 16∼16.6 nm, respectively, and the microcavity structure is expected to improve the efficiency and tunability of emission spectrum in display.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 621: Symposia Q/R – Electron-Emissive Materials, Vacuum Microelectronics… , 2000 , Q3.5.1
Copyright
Copyright © Materials Research Society 2000

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References

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