Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes
文献类型：期刊论文
| 作者 | Yang, Xiao1; Huang, Hong1; Pan, Biao1; Aldred, Matthew P.1; Zhuang, Shaoqing1; Wang, Lei1; Chen, Jiangshan2; Ma, Dongge2 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2012-07-19 |
| 卷号 | 116期号:28页码:15041-15047 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/jp3034566 |
| 英文摘要 | The hole-transporting material 4,4',4 ''-tri(N-carbazolyl)triphenylamine (TCTA) is widely used as a host in phosphorescent organic light-emitting diodes (PhOLEDs). Based on the unipolar TCTA, we synthesized a novel bipolar host material, (9-(4-(bis(4-(9H-carbazol-9-yl)phenyl)amino)phenyl)-9H-carbazol-3-yl) diphenylphosphine oxide (TCTA-PO) by directly imparting an electron-transporting diphenylphosphine oxide moiety to TCTA. It was found that TCTAPO can be used as an ideal versatile host for blue, orange, and white PhOLEDs due to its high triplet energy (E-T = 2.83 eV), high glass transition temperature (T-g = 165 degrees C), and bipolar charge-transporting ability. The maximum power efficiencies of 40.7 and 43.7 lm/W were achieved in the blue and orange PhOLEDs with FIrpic and (fbi)(2)Ir(acac) as the blue and orange dopants, respectively. Furthermore, the single-emitting-layer white organic light-emitting diode (WOLED) based on the emitter of TCTAPO:FIrpic,(fbi)(2)Ir(acac) exhibited a maximum current efficiency of 43.7 cd/A, a maximum power efficiency of 47.0 Im/W, and a maximum external quantum efficiency (eta(ext)) of 17.296. Compared to the PhOLEDs with TCTA as the host, the maximum power efficiencies increased about 56%, 36%, and 81%, for blue, orange, and white devices, respectively. |
| 语种 | 英语 |
| WOS记录号 | WOS:000306503200037 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47273]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Lei |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiao,Huang, Hong,Pan, Biao,et al. Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(28):15041-15047. |
| APA | Yang, Xiao.,Huang, Hong.,Pan, Biao.,Aldred, Matthew P..,Zhuang, Shaoqing.,...&Ma, Dongge.(2012).Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes.JOURNAL OF PHYSICAL CHEMISTRY C,116(28),15041-15047. |
| MLA | Yang, Xiao,et al."Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes".JOURNAL OF PHYSICAL CHEMISTRY C 116.28(2012):15041-15047. |
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来源：化学研究所
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