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Optical properties investigations of organic Alq3 layers doped by DCM

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6 Author(s)

We present the study of optical emission properties carried out on Alq3 organic solutions and evaporated films prepared by doping with dye molecules of DCM. The maxima of spontaneous emission spectral characteristics of Alq3:DCM films measured by photo- and electroluminescence shifts towards the higher wavelengths from 608 - 660 nm with simultaneous decrease in spectral intensities within the investigated DCM doping concentration range of 0.9 11%, respectively. The maximum emission intensity was observed at DCM doping concentration around 1% causing peak emission near 628 nm by optical pumping. Optically excited amplified spontaneous emission and laser spectrum showing evenly spaced resonant cavity modes with preferential emission peak at 621.4 nm have been measured on waveguide structures prepared onto GaAs substrate.

Published in:

Advanced Semiconductor Devices and Microsystems, 2002. The Fourth International Conference on

Date of Conference:

14-16 Oct. 2002