Highly Efficient Simple-Structure Blue and All-Phosphor Warm-White Phosphorescent Organic Light-Emitting Diodes Enabled by Wide-Bandgap Tetraarylsilane-Based Functional Materials
文献类型：期刊论文
| 作者 | Gong, Shaolong1; Sun, Ning2; Luo, Jiajia1; Zhong, Cheng1; Ma, Dongge2; Qin, Jingui1; Yang, Chuluo1 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2014-09-24 |
| 卷号 | 24期号:36页码:5710-5718 |
| 关键词 | Phosphorescent Oleds Blue Phosphorescence White Phosphorescence Host Material Charge-transporting Material |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.201400149 |
| 英文摘要 | Two host materials of {4-[diphenyl(4-pyridin-3-ylphenyl)silyl]phenyl}diphenylamine (p-PySiTPA) and {4-[[4-(diphenylphosphoryl)phenyl](diphenyl)silyl]phenyl}diphenylamine (p-POSiTPA), and an electron-transporting material of [(diphenylsilanediyl)bis(4,1-phenylene)]bis(diphenylphosphine) dioxide (SiDPO) are developed by incorporating appropriate charge transporting units into the tetraarylsilane skeleton. The host materials feature both high triplet energies (ca. 2.93 eV) and ambipolar charge transporting nature; the electron-transporting material comprising diphenylphosphine oxide units and tetraphenylsilane skeleton exhibits a high triplet energy (3.21 eV) and a deep highest occupied molecular orbital (HOMO) level (-6.47 eV). Using these tetraarylsilane-based functional materials results in a high-efficiency blue phosphorescent device with a three-organic-layer structure of 1,1-bis[4-[N,N-di(p-tolyl)-amino]phenyl]cyclohexane (TAPC)/p-POSiTPA: iridium(III) bis(4,6-difluorophenylpyridinato)tetrakis(1-pyrazolyl)borate (FIr6)/SiDPO that exhibits a forward-viewing maximum external quantum efficiency (EQE) up to 22.2%. This is the first report of three-organic-layer FIr6-based blue PhOLEDs with the forward-viewing EQE over 20%, and the device performance is among the highest for FIr6-based blue PhOLEDs even compared with the four or more than four organic-layer devices. Furthermore, with the introduction of bis(2-(9,9-diethyl-9H-fluoren-2-yl)-1-phenyl-1H-benzoimidazol-N,C-3)iridium acetylacetonate [(fbi)(2)Ir(acac)] as an orange emitter, an all-phosphor warm-white PhOLED achieves a peak power efficiency of 47.2 lm W-1, which is close to the highest values ever reported for two-color white PhOLEDs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000342621900009 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50933]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Gong, Shaolong |
| 作者单位 | 1.Wuhan Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, 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 | Gong, Shaolong,Sun, Ning,Luo, Jiajia,et al. Highly Efficient Simple-Structure Blue and All-Phosphor Warm-White Phosphorescent Organic Light-Emitting Diodes Enabled by Wide-Bandgap Tetraarylsilane-Based Functional Materials[J]. ADVANCED FUNCTIONAL MATERIALS,2014,24(36):5710-5718. |
| APA | Gong, Shaolong.,Sun, Ning.,Luo, Jiajia.,Zhong, Cheng.,Ma, Dongge.,...&Yang, Chuluo.(2014).Highly Efficient Simple-Structure Blue and All-Phosphor Warm-White Phosphorescent Organic Light-Emitting Diodes Enabled by Wide-Bandgap Tetraarylsilane-Based Functional Materials.ADVANCED FUNCTIONAL MATERIALS,24(36),5710-5718. |
| MLA | Gong, Shaolong,et al."Highly Efficient Simple-Structure Blue and All-Phosphor Warm-White Phosphorescent Organic Light-Emitting Diodes Enabled by Wide-Bandgap Tetraarylsilane-Based Functional Materials".ADVANCED FUNCTIONAL MATERIALS 24.36(2014):5710-5718. |
入库方式： OAI收割
来源：化学研究所
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