Synthesis of well-defined poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane as a bipolar host material for solution-processed deep blue phosphorescent devices
文献类型：期刊论文
| 作者 | Sun, Dianming1; Fu, Qiang2; Ren, Zhongjie1; Li, Huihui1; Ma, Dongge2; Yan, Shouke1 |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2014 |
| 卷号 | 5期号:1页码:220-226 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c3py00840a |
| 英文摘要 | Alternating copolymers with both hole and electron transporting side groups as bipolar hosts are of great interest for deep blue phosphorescent devices due to the uniform distribution of electrons and holes within the emitting layer. In this work, we synthesized an efficient alternating copolysiloxane-based host material poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane (PCzPOMSi) with phenylcarbazole and triphenylphosphine oxide moieties linked to the backbone of polysiloxane. PCzPOMSi exhibits a high decomposition temperature (T-d = 437 degrees C) and glass transition temperature (T-g = 118 degrees C), and it can form a stable amorphous state. The silicon-oxygen linkage of PCzPOMSi disrupts its conjugation and results in a sufficiently high triplet energy level (E-T = 3.0 eV). A bis((3,5-difluoro-4-cyanophenyl)pyridine)iridium picolinate (FCNIrpic)-based device using PCzPOMSi as a host shows a turn-on voltage of 7.7 V, a maximum external quantum efficiency of 4%, and a maximum current efficiency of 8.5 cd A(-1). These results demonstrate that a well-designed alternating copolysiloxane-based host is a promising approach to realize high performance solution-processed deep blue PhPLEDs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000327669900027 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52933]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ren, Zhongjie |
| 作者单位 | 1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Dianming,Fu, Qiang,Ren, Zhongjie,et al. Synthesis of well-defined poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane as a bipolar host material for solution-processed deep blue phosphorescent devices[J]. POLYMER CHEMISTRY,2014,5(1):220-226. |
| APA | Sun, Dianming,Fu, Qiang,Ren, Zhongjie,Li, Huihui,Ma, Dongge,&Yan, Shouke.(2014).Synthesis of well-defined poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane as a bipolar host material for solution-processed deep blue phosphorescent devices.POLYMER CHEMISTRY,5(1),220-226. |
| MLA | Sun, Dianming,et al."Synthesis of well-defined poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane as a bipolar host material for solution-processed deep blue phosphorescent devices".POLYMER CHEMISTRY 5.1(2014):220-226. |
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来源：化学研究所
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