Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer
We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4″-tris(N-(2-naphthyl)-N-phenyl-amino)triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl-benzene (DS...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/247976 |
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| author | Jianning Yu Na Wei Chong Li Bin Wei Wei Huang Taiju Tsuboi Jianhua Zhang Zhilin Zhang |
| author_facet | Jianning Yu Na Wei Chong Li Bin Wei Wei Huang Taiju Tsuboi Jianhua Zhang Zhilin Zhang |
| author_sort | Jianning Yu |
| collection | DOAJ |
| description | We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4″-tris(N-(2-naphthyl)-N-phenyl-amino)triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl-benzene (DSA-ph) 3 wt%/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1 wt%) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge balance and expansion of exciton recombination zone. The better charge balance was obtained by reducing the electron mobility of ADN which was higher than the hole mobility in the case of non-codoping. |
| format | Article |
| id | doaj-art-ef5007415d7440828a614cd39c9a49f1 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-ef5007415d7440828a614cd39c9a49f12025-02-03T07:25:57ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422012-01-01201210.1155/2012/247976247976Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting LayerJianning Yu0Na Wei1Chong Li2Bin Wei3Wei Huang4Taiju Tsuboi5Jianhua Zhang6Zhilin Zhang7Key Laboratory of Advanced Display and System Applications, Shanghai University, Ministry of Education, Yanchang Road 149, Shanghai 200072, ChinaKey Laboratory of Advanced Display and System Applications, Shanghai University, Ministry of Education, Yanchang Road 149, Shanghai 200072, ChinaKey Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Wenyuan Road 9, Nanjing 210046, ChinaKey Laboratory of Advanced Display and System Applications, Shanghai University, Ministry of Education, Yanchang Road 149, Shanghai 200072, ChinaKey Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Wenyuan Road 9, Nanjing 210046, ChinaFaculty of Engineering, Kyoto Sangyo University, Kamigamo, Kita-ku, Kyoto 603-8555, JapanSchool of Mechanical and Electronic Engineering and Automation, Shanghai University, Shanghai 200072, ChinaKey Laboratory of Advanced Display and System Applications, Shanghai University, Ministry of Education, Yanchang Road 149, Shanghai 200072, ChinaWe have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4″-tris(N-(2-naphthyl)-N-phenyl-amino)triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl-benzene (DSA-ph) 3 wt%/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1 wt%) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge balance and expansion of exciton recombination zone. The better charge balance was obtained by reducing the electron mobility of ADN which was higher than the hole mobility in the case of non-codoping.http://dx.doi.org/10.1155/2012/247976 |
| spellingShingle | Jianning Yu Na Wei Chong Li Bin Wei Wei Huang Taiju Tsuboi Jianhua Zhang Zhilin Zhang Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer Advances in Materials Science and Engineering |
| title | Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer |
| title_full | Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer |
| title_fullStr | Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer |
| title_full_unstemmed | Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer |
| title_short | Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer |
| title_sort | enhancement of efficiency and lifetime of blue organic light emitting diodes using two dopants in single emitting layer |
| url | http://dx.doi.org/10.1155/2012/247976 |
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