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Effect of Computational Lithography Parameters on the Organic Light-Emitting Diodes

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For the high efficiency of the small-size display and the increasing complexity of layer composition and structures in the organic light-emitting devices (OLEDs), a validated comprehensive OLED device modeling is required. In this paper, a technology computer-aided design (TCAD) of OLED is efficiently modeled to integrate the whole physical processes in OLED fabrication. For the micro-/nano-lens array with diffraction limits, a method of the enhanced outcoupled efficiency of OLED, the rectangular block-lens, not only enhances the light extraction of 11% but also lowers the driving voltage of 8% than the hemisphere-lens because of the reduction of the significant chromatic dependence and the pixel-to-pixel optical crosstalk. Simulation results can optimize parameters of lithography process and OLED fabrication for the OLED performance and thereby improve the external quantum efficiency.
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Keywords: Coupling Efficiency; Lithography; Lithography Simulation; Microlens Array; OLED; Organic Light-Emitting Diodes

Document Type: Research Article

Affiliations: Department of Applied Physics, Hanyang University, Ansan 426-791, Republic of Korea; Hongik University, Department of Science, Seoul 121-791, Republic of Korea

Publication date: August 1, 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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