Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7601
Title: Influence of charge balance and microcavity effects on resultant efficiency of organic-light emitting devices
Authors: Choulis, Stelios A. 
Krummacher, Benjamin C. 
Mathai, Mathew K. 
Major Field of Science: Engineering and Technology
Keywords: Light emitting diodes;Computer simulation;Phosphorescence
Issue Date: 5-Oct-2006
Source: Organic electronics, 2006, vol. 7, no. 5, pp. 313–318
Volume: 7
Issue: 5
Start page: 313
End page: 318
Journal: Organic Electronics 
Abstract: The contribution of charge balance and optical microcavity effects in solution processed OLEDs cannot be easily quantified due to the absence of a well defined location for the emission zone. In this paper, we study the device efficiency of a solution processed blue electrophosphorescent OLED where the relative electron-hole balance is varied by means of molecular doping with an electron transport material. Changes in the electroluminescent spectra for the device series indicate the presence of optical microcavity effects, which we quantify by means of optical simulation. Furthermore, this enables us to factor out the contribution of microcavity effects on device efficiency enabling the quantification of the charge balance effect on device performance
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2006.03.011
Rights: © Elsevier
Attribution-NonCommercial-NoDerivs 3.0 United States
Type: Article
Affiliation: Osram Opto Semiconductors, Inc. 
Affiliation : Osram Opto Semiconductors, Inc. 
Appears in Collections:Άρθρα/Articles

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