ICCAS OpenIR
Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore
Ho, Cheuk-Lam2,3; Chui, Chung-Hin1; Wong, Wai-Yeung2,3; Aly, Shawkat M.4; Fortin, Daniel4; Harvey, Pierre D.4; Yao, Bing5; Xie, Zhiyuan5; Wang, Lixiang5
2009-11-06
Source PublicationMACROMOLECULAR CHEMISTRY AND PHYSICS
ISSN1022-1352
Volume210Issue:21Pages:1786-1798
AbstractThe 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.
KeywordAlkyne Metallopolymer Phosphorescence Photophysics Polymer Light-emitting Device Transition Metal
DOI10.1002/macp.200900351
Indexed BySCI ; IC
Language英语
WOS IDWOS:000272070400002
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:53[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67738
Collection中国科学院化学研究所
Corresponding AuthorChui, Chung-Hin
Affiliation1.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
Recommended Citation
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.
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