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Optical Engineering

Fabrication and electrical characterization of red organic light emitting diode using an isatin derivative as an organic chromophore
Author(s): Mohammad T. Sharbati; Farzin Emami; Mohammad Navid Soltani Rad; Somayeh Behrouz; Abdo-Reza Nekoei
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Paper Abstract

In this study isatin and its novel Schiff base as a new red fluorescent material for organic light emitting diodes (OLEDs) are used for red color OLEDs. We fabricated OLEDs with the configuration of indium tin oxide/4.4′-Bis(N-carbazolyl-1,1′-biphenyl/red emitter/HGH2/Alq3/Li/Al which the electrical and optical properties of devices have been investigated. Their photoluminescence and electroluminescence properties for isatin and its Schiff base were examined and compared. The electroluminescent spectra of these materials ranges from 593 to 645 nm and their bandgaps are between 2.1 and 1.92 eV. The Commission International De L'Eclairage (1931) coordinates of these two compounds were measured and found to be (0.4325, 0.4329) and (0.4077, 0.4128) for two employed chromophores.

Paper Details

Date Published: 1 April 2011
PDF: 7 pages
Opt. Eng. 50(4) 044002 doi: 10.1117/1.3567767
Published in: Optical Engineering Volume 50, Issue 4
Show Author Affiliations
Mohammad T. Sharbati, Shiraz Univ. (Iran, Islamic Republic of)
Farzin Emami, Shiraz Univ. (Iran, Islamic Republic of)
Mohammad Navid Soltani Rad, Shiraz Univ. (Iran, Islamic Republic of)
Somayeh Behrouz, Shiraz Univ. (Iran, Islamic Republic of)
Abdo-Reza Nekoei, Shiraz Univ. (Iran, Islamic Republic of)


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