دورية أكاديمية
An optical and electrical study of full thermally activated delayed fluorescent white organic light-emitting diodes
العنوان: | An optical and electrical study of full thermally activated delayed fluorescent white organic light-emitting diodes |
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المؤلفون: | Daniel de Sa Pereira, Paloma L. dos Santos, Jonathan S. Ward, Przemyslaw Data, Masato Okazaki, Youhei Takeda, Satoshi Minakata, Martin R. Bryce, Andrew P. Monkman |
المصدر: | Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017) |
بيانات النشر: | Nature Portfolio, 2017. |
سنة النشر: | 2017 |
المجموعة: | LCC:Medicine LCC:Science |
مصطلحات موضوعية: | Medicine, Science |
الوصف: | Abstract We report on the engineering of full thermally activated delayed fluorescence – based white organic light emitting diodes (W-OLEDs) composed of three emitters (2,7-bis(9,9-dimethyl-acridin-10-yl)-9,9-dimethylthioxanthene-S,S-dioxide (DDMA-TXO2), 2,7-bis(phenoxazin-10-yl)-9,9-dimethylthioxanthene-S,S-dioxide (DPO-TXO2) and 3,11-di(10H-phenoxazin-10-yl)dibenzo[a,j]phenazine (POZ-DBPHZ) in two different hosts. By controlling the device design through the study of the emission of DDMA-TXO2 and DPO-TXO2, the behaviour of POZ-DBPHZ in a device with more than one emitter, and the combination of the three materials, respectively, we show that external quantum efficiencies as high as 16% can be obtained for a structure with a correlated colour temperature close to warm white, together with colour rendering index close to 80. However it is in their performance stability that provides the true breakthrough: at 1000 cd/m2 the efficiencies were still above 10%, which is one of the best for this type of devices. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 2045-2322 |
Relation: | https://doaj.org/toc/2045-2322 |
DOI: | 10.1038/s41598-017-06568-3 |
URL الوصول: | https://doaj.org/article/cff5976157ae4ce2bddf7ffe06e43607 |
رقم الأكسشن: | edsdoj.ff5976157ae4ce2bddf7ffe06e43607 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 20452322 |
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DOI: | 10.1038/s41598-017-06568-3 |