Achieving near-infrared emission in platinum(II) complexes by using an extended donor-acceptor-type ligand

	Achieving near-infrared emission in platinum(II) complexes by using an extended donor-acceptor-type ligand
	Zhang, You-Ming 1; Meng, Fanyuan 1,3; Tang, Jian-Hong 4; Wang, Yafei 1; You, Caifa 1; Tan, Hua 1; Liu, Yu 1; Zhong, Yu-Wu 4; Su, Shijian 3; Zhu, Weiguo 1,2
刊名	DALTON TRANSACTIONS
	2016
卷号	45 期号:12 页码:5071-5080
英文摘要	A series of (CN)-N-boolean AND ligands with donor-acceptor (D-A) frameworks, i.e. TPA-BTPy, TPA-BTPy-Fl and Fl(TPA-BTPy)(2), as well as their mono-and di-nuclear platinum(II) complexes of (TPA-BTPy)Pt(pic), (TPA-BTPy-Fl) Pt(pic) and [Fl(TPA-BTPy)(2)]Pt-2(pic)(2) are respectively designed and synthesized, in which tri-phenylamine (TPA) and fluorene (Fl) are used as the D units, 4-(pyrid-2-yl)benzothiadiazole (BTPy) as the A unit, and the picolinate anion (pic) as the auxiliary ligand. Their thermal, photophysical and electro-chemical characteristics were investigated. Compared to mono-nuclear platinum complexes and their free ligands, this dinuclear one of [Fl(TPA-BTPy)(2)]Pt-2(pic)(2) shows an obvious interaction from the platinum atom to ligand and dual emission peaks at 828 and 601 nm in thin films. Upon oxidation with antimony pentachloride in dichloromethane, charge transfer transitions between the platinum and ligand are observed for the three complexes. The single-emissive-layer polymer light-emitting devices doped with [Fl(TPA-BTPy)(2)]Pt-2(pic)(2) display a strong electroluminescence with dual emission peaks at 780 and 600 nm at a dopant concentration over 4 wt%. A maximum external quantum efficiency of 0.02% with a radiance of 59 mu W cm(-2) is obtained in the device at 30 wt% dopant concentration. This work indicates that the use of an extended D-A-type ligand is an effective strategy to achieve NIR emission for platinum complexes in PLEDs.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/35919]
专题	化学研究所_光化学实验室
作者单位	1.Xiangtan Univ, Key Lab Environment Friendly Chem & Applicat, Coll Chem, Minist Educ, Xiangtan 411105, Peoples R China 2.Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China 3.S China Univ Technol, State Key Lab Luminescent Mat & Devices, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Photochem, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, You-Ming,Meng, Fanyuan,Tang, Jian-Hong,et al. Achieving near-infrared emission in platinum(II) complexes by using an extended donor-acceptor-type ligand[J]. DALTON TRANSACTIONS,2016,45(12):5071-5080.
APA	Zhang, You-Ming.,Meng, Fanyuan.,Tang, Jian-Hong.,Wang, Yafei.,You, Caifa.,...&Zhu, Weiguo.(2016).Achieving near-infrared emission in platinum(II) complexes by using an extended donor-acceptor-type ligand.DALTON TRANSACTIONS,45(12),5071-5080.
MLA	Zhang, You-Ming,et al."Achieving near-infrared emission in platinum(II) complexes by using an extended donor-acceptor-type ligand".DALTON TRANSACTIONS 45.12(2016):5071-5080.