https://scholars.lib.ntu.edu.tw/handle/123456789/374189
標題: | Improve efficiency of white organic light-emitting diodes by using nanosphere arrays in color conversion layers | 作者: | Ho, Yu-Hsuan DING-WEI HUANG Chang, Yung-Ting Ye, Ya-Han Chu, Chih-Wei Tian, Wei-Cheng Chen, Chin-Ti Wei, Pei-Kuen |
公開日期: | 一月-2012 | 卷: | 20 | 期: | 3 | 起(迄)頁: | 3005-3014 | 來源出版物: | Optics Express | 摘要: | The authors demonstrated an efficient color conversion layer (CCL) by using nanosphere arrays in down-converted white organic light-emitting diodes (WOLEDs). The introduced periodical nanospheres not only helped extract the confined light in devices, but also increased the effective light path to achieve high-efficiency color conversion. By applying a CCL with red phosphor on a 400-nm-period nanosphere array, we achieved 137% color conversion ratio for blue OLEDs, which was 2.68 times higher than conventional flat CCL. The resulting luminous efficiency of WOLEDs with patterned CCLs (20.97 cd/A, 1000 cd/m2) was two times higher than the efficiency of the flat device (10.26 cd/A, 1000 cd/m2). © 2012 Optical Society of America. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/374189 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84863070648&doi=10.1364%2fOE.20.003005&partnerID=40&md5=fcdd812847d7891e958d3552495d1467 |
DOI: | 10.1364/OE.20.003005 | SDG/關鍵字: | Color; Efficiency; Light emission; Nanospheres; Organic light emitting diodes (OLED); Blue OLEDs; Color conversions; Light path; Luminous efficiency; Red phosphors; White organic light emitting diodes; Optoelectronic devices; nanosphere; article; chemistry; color; equipment; equipment design; illumination; instrumentation; nanotechnology; semiconductor; ultrastructure; Color; Equipment Design; Equipment Failure Analysis; Lighting; Nanospheres; Nanotechnology; Semiconductors |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。