Document Detail

Efficient waveguide mode extraction in white organic light emitting diodes using ITO-anodes with integrated MgF<sub>2</sub>-columns.
MedLine Citation:
PMID:  22418497     Owner:  NLM     Status:  In-Data-Review    
We report a simple approach to enhance the out-coupling efficiency in white organic light emitting diodes (WOLEDs). By incorporating MgF<sub>2</sub>-columns into the ITO-anode and optimizing of their geometry, an overall efficiency enhancement of up to 38% is achieved. In addition, the structuring of the anode does not lead to a change in the electrical behaviour of the devices. As evidenced by goniometric measurements, the angular emission characteristics of the WOLEDs remain unchanged. Simulations, performed with the T-matrix method, reveal the effect of the enhanced outcoupling efficiency of this approach.
Tobias Bocksrocker; Florian Maier-Flaig; Carsten Eschenbaum; Uli Lemmer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-03-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6170-4     Citation Subset:  IM    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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