| Polarizer-free, high-contrast inverted top-emitting organic light emitting diodes: effect of the electrode structure. | |
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MedLine Citation:
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PMID: 22274526 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Circular polarizer (CP)-free, high-contrast inverted top-emitting organic light-emitting diodes (ITOLEDs) are demonstrated by using a semitransparent Ag electrode capped with a single dielectric layer as a top anode and Cs<sub>2</sub>CO<sub>3</sub> (1.5 nm)/Al (1.5 nm)/Cr (100nm) as a partially absorbing bottom cathode. Low luminous reflectance is achieved by combining the broadband absorption of Cr, the weak but inherent cavity structure, and the optimal thickness of the capping layer yielding a high transmittance of a top electrode. With the optimized organic capping layer, contrast-enhanced ITOLEDs exhibit a luminous reflectance as low as 3.6% with a large thickness margin. Their luminous efficiency is shown to be comparable to or even higher than that of CP-based conventional OLEDs. |
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Authors:
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Hyunsu Cho; Seunghyup Yoo |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Optics express Volume: 20 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-01-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
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Languages: eng Pagination: 1816-24 Citation Subset: IM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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