Evaluation of True Power Luminous Efficiency from Experimental Luminance Values
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概要
- 論文の詳細を見る
A method for obtaining true external power luminous efficiency from experimentally obtained luminance in organic light-emitting diodes (LEDs) was demonstrated. Conventional two-layer organic LEDs with different electron-transport layer thicknesses were prepared. Spatial distributions of emission intensities were observed. The large deviation in both emission spectra and spatial emission patterns were observed when the electron-transport layer thickness was varied. The deviation of emission patterns from the standard Lambertian pattern was found to cause overestimations of power luminous efficiencies as large as 30%. A method for evaluating correction factors was proposed.
- 社団法人応用物理学会の論文
- 1999-05-15
著者
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Tsutsui Tetsuo
Department Of Applied Science For Electronic And Materials Graduate School Of Engineering Sciences K
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Tsutsui Tetsuo
Department Of Applied Science For Electronics And Materials Graduate School Of Engineering Sciences
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YAMAMATO Kounosuke
Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences
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Yamamato Kounosuke
Department Of Applied Science For Electronics And Materials Graduate School Of Engineering Sciences
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Yamamoto Kounosuke
Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University
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