journal article·2014-09

Light extraction enhancement from organic light-emitting diodes with randomly scattered surface fixture

Dong-Ying Zhou, Xiao-Bo Shi, Chun-Hong Gao, Shi-Duan Cai, Yue Jin, Liang-Sheng Liao

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Abstract

Abstract A combination of a scattering medium layer and a roughened substrate was proposed to enhance the light extraction efficiency of organic light-emitting diodes (OLEDs). Comparing with a reference OLED without any scattering layer, 65% improvement in the forward emission has been achieved with a scattering layer formed on an intentionally roughened external substrate surface of the OLED by spin-coating a sol–gel fabricated matrix containing well dispersed titania (TiO 2 ) particles. Such a combination method not only demonstrated efficient extraction of the light trapped in the glass substrate but also achieved homogenous emission from the OLED panel. The proposed technique, convenient and inexpensive, is believed to be suitable for the large area OLED production in lighting applications.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Organic Light-Emitting Diodes Research · Nanomaterials and Printing Technologies · Green IT and Sustainability

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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