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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41276

Title: The First Tandem, All-exciplex-based WOLED
Authors: Wen-Yi Hung;Guan-Cheng Fang;Shih-Wei Lin;Shuo-Hsien Cheng;Ken-Tsung Wong;Ting-Yi Kuo;Pi-Tai Chou
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2014
Issue Date: 2017-02-13T07:52:48Z
Publisher: Scientific Reports
Abstract: Abstract
Exploiting our recently developed bilayer interface methodology, together with a new wide energy-gap, low LUMO acceptor (A) and the designated donor (D) layers, we succeeded in fabricating an exciplex-based organic light-emitting diode (OLED) systematically tuned from blue to red. Further optimization rendered a record-high blue exciplex OLED with ηext of 8%. We then constructed a device structure configured by two parallel blend layers of mCP/PO-T2T and DTAF/PO-T2T, generating blue and yellow exciplex emission, respectively. The resulting device demonstrates for the first time a tandem, all-exciplex-based white-light OLED (WOLED) with excellent efficiencies ηext: 11.6%, ηc: 27.7 cd A−1, and ηp: 15.8 ml W−1 with CIE(0.29, 0.35) and CRI 70.6 that are nearly independent of EL intensity. The tandem architecture and blend-layer D/A (1:1) configuration are two key elements that fully utilize the exciplex delay fluorescence, providing a paragon for the use of low-cost, abundant organic compounds en route to commercial WOLEDs
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41276
Appears in Collections:[光電科學研究所] 期刊論文

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