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Jpn. J. Appl. Phys. 50 (2011) 06GF06 (4 pages)  |Previous Article| |Next Article|  |Table of Contents|
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Enhanced Optical and Electrical Properties of Inorganic Electroluminescent Devices Using the Top-Emission Structure

Jin-Young Kim, Taewon Jeong1, Shang Hyeun Park1, Min Jong Bae1, Sunjin Song1, Jeonghee Lee1, Intaek Han1, Donggeun Jung, Chunli Liu2, and SeGi Yu2

Department of Physics, BK 21 Physics Research Division, Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
1Materials Research Center, SAIT, Samsung Electronics, Yongin 446-712, Korea
2Department of Physics, Hankuk University of Foreign Studies, Yongin 449-791, Korea

(Received November 7, 2010; accepted January 11, 2011; published online June 20, 2011)

Alternating current inorganic powder electroluminescence (EL) devices with a top-emission structure were fabricated on glass substrates to investigate the structural dependence on EL. The EL performance was examined by comparing the top-emission structure with the conventional EL device, i.e., the bottom-emission structure. High performance, such as 50 and 40% increases in efficiency and brightness, respectively, was achieved. This enhanced EL performance was attributed to the structural change in the EL device, leading to reduced optical loss and enhanced electric field applied to the phosphor.

URL: http://jjap.jsap.jp/link?JJAP/50/06GF06/
DOI: 10.1143/JJAP.50.06GF06
PACS: 85.60.Jb, 81.05.Dz, 78.60.Fi, 85.60.Bt


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