Highly efficient solution-processed green and red electrophosphorescent devices enabled by small-molecule bipolar host material
文献类型：期刊论文
| 作者 | Zhu, Minrong2; Ye, Tengling1; He, Xun2; Cao, Xiaosong2; Zhong, Cheng2; Ma, Dongge1; Qin, Jingui2; Yang, Chuluo2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:25页码:9326-9331 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/c1jm10987a |
| 英文摘要 | A solution-processable host molecule TPO comprised of hole-transporting triphenylamine and electron-transporting oxadiazole has been synthesized. Through meta-linkage between the donor and the acceptor, complete charge localization of the HOMO and LUMO and proper triplet energy are imparted. The new compound shows good thermal stability with a high glass-transition temperature of 131 degrees C. Smooth and homogeneous film can be obtained by spin-coating from a TPO/iridium complex blend as probed by atomic force microscopy. The solution-processed red phosphorescent organic light-emitting device (PhOLED) achieves a maximum current efficiency of 13.3 cd A(-1) with Commission Internationale de l'Eclairage coordinates of (0.64, 0.36); while the green device reaches a maximum current efficiency of 40.8 cd A(-1), and the value is still as high as 39.6 cd A(-1) at a practical luminance of 1000 cd m(-2). The low roll-off can be attributed to the bipolar nature of the host material TPO. An optimized device further elevates the efficiency to 56.8 cd A(-1), which is among the highest ever reported for small-molecule based green PhOLEDs fabricated by a wet process. |
| 语种 | 英语 |
| WOS记录号 | WOS:000291611600054 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71547]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ma, Dongge |
| 作者单位 | 1.Changchun Inst Appl Chem, Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Wuhan Univ, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Minrong,Ye, Tengling,He, Xun,et al. Highly efficient solution-processed green and red electrophosphorescent devices enabled by small-molecule bipolar host material[J]. JOURNAL OF MATERIALS CHEMISTRY,2011,21(25):9326-9331. |
| APA | Zhu, Minrong.,Ye, Tengling.,He, Xun.,Cao, Xiaosong.,Zhong, Cheng.,...&Yang, Chuluo.(2011).Highly efficient solution-processed green and red electrophosphorescent devices enabled by small-molecule bipolar host material.JOURNAL OF MATERIALS CHEMISTRY,21(25),9326-9331. |
| MLA | Zhu, Minrong,et al."Highly efficient solution-processed green and red electrophosphorescent devices enabled by small-molecule bipolar host material".JOURNAL OF MATERIALS CHEMISTRY 21.25(2011):9326-9331. |
入库方式： OAI收割
来源：化学研究所
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