Metallophosphors of platinum with distinct main-group elements: a versatile approach towards color tuning and white-light emission with superior efficiency/color quality/brightness trade-offs
文献类型：期刊论文
| 作者 | Zhou, Guijiang1,2,3,4; Wang, Qi5; Wang, Xingzhu6,7; Ho, Cheuk-Lam3,4; Wong, Wai-Yeung3,4; Ma, Dongge5; Wang, Lixiang5; Lin, Zhenyang8 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2010 |
| 卷号 | 20期号:35页码:7472-7484 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/c0jm01159b |
| 英文摘要 | A new series of phosphorescent platinum(II) cyclometalated complexes with distinct electronic structures has been developed by simple tailoring of the phenyl ring of ppy (Hppy = 2-phenylpyridine) with various main-group moieties in [Pt(ppy-X)(acac)] (X = B(Mes)(2), SiPh(3), GePh(3), NPh(2), POPh(2), OPh, SPh, SO(2)Ph substituted at the para position). Their distinctive electronic characters, resulting in improved hole-injection/hole-transporting or electron-injection/electron-transporting features, have confined/consumed the electrons in the emission layer of organic light-emitting diodes (OLEDs) to achieve good color purity and high efficiency of the devices. The maximum external quantum efficiency of 9.52%, luminance efficiency of 30.00 cd A(-1) and power efficiency of 8.36 lm W(-1) for the OLEDs with Pt-B (X = B(Mes)(2)) as the emitter, 8.50%, 29.74 cd A(-1) and 19.73 lm W(-1) for the device with Pt-N (X NPh(2)), 7.92%, 22.06 cd A(-1) and 13.64 lm W(-1) for the device with Pt-PO (X POPh(2)) as well as 8.35%, 19.59 cd A(-1) and 7.83 lm W(-1) for the device with Pt-SO(2) (X = SO(2)Ph) can be obtained. By taking advantage of the unique electronic structures of the Pt-Ge (X = GePh(3)) and Pt-O (X = OPh) green emitters and the intrinsic property of blue-emitting hole-transport layer of 4,4'-bis[N-(1-naphthyl)- N-phenylamino] biphenyl (NPB), single-dopant white OLEDs (WOLEDs) can be developed. These simple WOLEDs emit white light of very high quality (CIE at (0.354, 0.360), CRI of ca. 97 and CCT at 4719 K) even at high brightness (>15000 cd m(-2)) and the present work represents significant progress to address the bottle-neck problem of WOLEDs for the efficiency/color quality/brightness trade-off optimization that is necessary for pure white light of great commercial value. |
| 语种 | 英语 |
| WOS记录号 | WOS:000281223200025 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69945]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhou, Guijiang |
| 作者单位 | 1.Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China 2.Xi An Jiao Tong Univ, Dept Chem, Xian 710049, Peoples R China 3.Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China 4.Hong Kong Baptist Univ, Ctr Adv Luminescence Mat, Kowloon Tong, Hong Kong, Peoples R China 5.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 6.Xiangtan Univ, Coll Chem, Xiangtan 411105, Peoples R China 7.Xiangtan Univ, Key Lab Environmentally Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China 8.Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Guijiang,Wang, Qi,Wang, Xingzhu,et al. Metallophosphors of platinum with distinct main-group elements: a versatile approach towards color tuning and white-light emission with superior efficiency/color quality/brightness trade-offs[J]. JOURNAL OF MATERIALS CHEMISTRY,2010,20(35):7472-7484. |
| APA | Zhou, Guijiang.,Wang, Qi.,Wang, Xingzhu.,Ho, Cheuk-Lam.,Wong, Wai-Yeung.,...&Lin, Zhenyang.(2010).Metallophosphors of platinum with distinct main-group elements: a versatile approach towards color tuning and white-light emission with superior efficiency/color quality/brightness trade-offs.JOURNAL OF MATERIALS CHEMISTRY,20(35),7472-7484. |
| MLA | Zhou, Guijiang,et al."Metallophosphors of platinum with distinct main-group elements: a versatile approach towards color tuning and white-light emission with superior efficiency/color quality/brightness trade-offs".JOURNAL OF MATERIALS CHEMISTRY 20.35(2010):7472-7484. |
入库方式： OAI收割
来源：化学研究所
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