Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore

doi:10.1002/macp.200900351

CORC > 化学研究所 > 中国科学院化学研究所

	Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore
	Ho, Cheuk-Lam 2,3; Chui, Chung-Hin 1; Wong, Wai-Yeung 2,3; Aly, Shawkat M.4; Fortin, Daniel 4; Harvey, Pierre D.4; Yao, Bing 5; Xie, Zhiyuan 5; Wang, Lixiang 5
刊名	MACROMOLECULAR CHEMISTRY AND PHYSICS
	2009-11-06
卷号	210 期号:21 页码:1786-1798
关键词	Alkyne Metallopolymer Phosphorescence Photophysics Polymer Light-emitting Device Transition Metal
ISSN号	1022-1352
DOI	10.1002/macp.200900351
英文摘要	The synthesis, thermal and emission properties of an electrophosphorescent platinum(II) metallopolyyne polymer consisting of 9-butylcarbazole-2,7-diyl spacer P1 are described. The optical and electronic properties of P1 are compared to their molecular diplatinum(II) and digold(I) model complexes. The photophysical properties of P1 are somehow analogous to its 2,7-fluorene-linked congener but differs significantly from that for the 3,6-carbazole derivative. Its optical band gap is notably reduced as compared to that for the 3,6-carbazole analog. Multi-layer polymer light-emitting diodes (PLEDs) were fabricated with P1 as the emitting layer which gave a strong green-yellow electrophosphorescence. The best PLED can reach the maximum current efficiency of 4.7 cd . A(-1) at 5 wt.-% doping level, corresponding to an external quantum efficiency of 1.5%. This represents the first literature example of efficient PLEDs exhibiting pure triplet emission under electrical excitation for metallopolyynes without the concomitant singlet emission. For safety concern, this metallopolymer was also tested for possible cytotoxicity and it does not show significant cytotoxic activity on liver and breast derived human cells at reasonable doses, rendering this functional material safe to use in practical devices.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000272070400002
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/67737]
专题	中国科学院化学研究所
通讯作者	Chui, Chung-Hin
作者单位	1.Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Hong Kong, Peoples R China 2.Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China 3.Hong Kong Baptist Univ, Ctr Adv Luminescence Mat, Kowloon Tong, Hong Kong, Peoples R China 4.Univ Sherbrooke, Dept Chim, Sherbrooke, PQ J1K 2R1, Canada 5.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	Ho, Cheuk-Lam,Chui, Chung-Hin,Wong, Wai-Yeung,et al. Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2009,210(21):1786-1798.
APA	Ho, Cheuk-Lam.,Chui, Chung-Hin.,Wong, Wai-Yeung.,Aly, Shawkat M..,Fortin, Daniel.,...&Wang, Lixiang.(2009).Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore.MACROMOLECULAR CHEMISTRY AND PHYSICS,210(21),1786-1798.
MLA	Ho, Cheuk-Lam,et al."Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore".MACROMOLECULAR CHEMISTRY AND PHYSICS 210.21(2009):1786-1798.