Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant
Highly efficient phosphorescent organic light-emitting devices (PhOLEDs) had been fabricated by using a novel iridium complex, bis[2-(3′,5′-di-tert-butylbiphenyl-4-yl)benzothiazolato-N,C2′]iridium(III) (acetylacetonate) [(tbpbt)2Ir(acac)], as the emitter. With a wide doping ratio ranging from 15 wt%...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/392408 |
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| author | Qi Wang Junsheng Yu Ming Li Zhiyun Lu |
| author_facet | Qi Wang Junsheng Yu Ming Li Zhiyun Lu |
| author_sort | Qi Wang |
| collection | DOAJ |
| description | Highly efficient phosphorescent organic light-emitting devices (PhOLEDs) had been fabricated by using a novel iridium complex, bis[2-(3′,5′-di-tert-butylbiphenyl-4-yl)benzothiazolato-N,C2′]iridium(III) (acetylacetonate) [(tbpbt)2Ir(acac)], as the emitter. With a wide doping ratio ranging from 15 wt% to 25 wt%, the PhOLEDs maintained a comparable high performance, indicating concentration-insensitive property of the (tbpbt)2Ir(acac). On the basis of the unique characteristic of concentration insensitivity, the application of this phosphor was explored by fabricating white organic light-emitting devices (WOLEDs) with altered doping ratio, indicating that trap effect of (tbpbt)2Ir(acac) could effectively tailor WOLEDs spectra. Typically, a high-power efficiency, current efficiency, and external quantum efficiency of 30.0 lm/W, 38.8 cd/A, 18.1%, were achieved by 20 wt% doped WOLEDs. |
| format | Article |
| id | doaj-art-ef5ecf96d5094c43bf4d13c57f059792 |
| institution | DOAJ |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-ef5ecf96d5094c43bf4d13c57f0597922025-08-20T03:21:14ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/392408392408Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive DopantQi Wang0Junsheng Yu1Ming Li2Zhiyun Lu3State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, ChinaCollege of Chemistry, Sichuan University, Chengdu 610064, ChinaCollege of Chemistry, Sichuan University, Chengdu 610064, ChinaHighly efficient phosphorescent organic light-emitting devices (PhOLEDs) had been fabricated by using a novel iridium complex, bis[2-(3′,5′-di-tert-butylbiphenyl-4-yl)benzothiazolato-N,C2′]iridium(III) (acetylacetonate) [(tbpbt)2Ir(acac)], as the emitter. With a wide doping ratio ranging from 15 wt% to 25 wt%, the PhOLEDs maintained a comparable high performance, indicating concentration-insensitive property of the (tbpbt)2Ir(acac). On the basis of the unique characteristic of concentration insensitivity, the application of this phosphor was explored by fabricating white organic light-emitting devices (WOLEDs) with altered doping ratio, indicating that trap effect of (tbpbt)2Ir(acac) could effectively tailor WOLEDs spectra. Typically, a high-power efficiency, current efficiency, and external quantum efficiency of 30.0 lm/W, 38.8 cd/A, 18.1%, were achieved by 20 wt% doped WOLEDs.http://dx.doi.org/10.1155/2013/392408 |
| spellingShingle | Qi Wang Junsheng Yu Ming Li Zhiyun Lu Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant International Journal of Photoenergy |
| title | Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant |
| title_full | Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant |
| title_fullStr | Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant |
| title_full_unstemmed | Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant |
| title_short | Tailoring the Spectra of White Organic Light-Emitting Devices by Trap Effect of a Concentration-Insensitive Dopant |
| title_sort | tailoring the spectra of white organic light emitting devices by trap effect of a concentration insensitive dopant |
| url | http://dx.doi.org/10.1155/2013/392408 |
| work_keys_str_mv | AT qiwang tailoringthespectraofwhiteorganiclightemittingdevicesbytrapeffectofaconcentrationinsensitivedopant AT junshengyu tailoringthespectraofwhiteorganiclightemittingdevicesbytrapeffectofaconcentrationinsensitivedopant AT mingli tailoringthespectraofwhiteorganiclightemittingdevicesbytrapeffectofaconcentrationinsensitivedopant AT zhiyunlu tailoringthespectraofwhiteorganiclightemittingdevicesbytrapeffectofaconcentrationinsensitivedopant |