Red electrophosphorescence of conjugated organoplatinum(II) polymers prepared via direct metalation of poly(fluorene-co-tetraphenylporphyrin) copolymers

被引：42

作者：

Hou, Q

Zhang, Y

Li, FY

Peng, JB

Cao, Y ^{[1
]}

机构：

[1] S China Univ Technol, Inst Polymer Optoelect Mat & Dev, Key Lab Specially Funct Mat & Adv Mfg Technol, Guangzhou 510640, Peoples R China

[2] S China Normal Univ, Sch Chem & Environm, Guangzhou 510630, Peoples R China

[3] Fudan Univ, Inst Adv Mat, Shanghai 200433, Peoples R China

来源：

ORGANOMETALLICS | 2005年 / 24卷 / 19期

关键词：

D O I：

10.1021/om050059k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of novel soluble conjugated phosphorescent copolymers with tetraphenylporphyrin platinum(II) complexes inserted into the polymer main chain is synthesized through direct metalation of the metal-free polyfluorene-co-tetraphenylporphyrin copolymers with PtCl2 in benzonitrile. Chemical and photophysical characterization confirms that platinum(II) was successfully incorporated into metal-free porphyrin in the copolymer backbone. The PL decay studies indicate that polyfluorene-co-tetraphenylporphyrin platinum(II) (PFO-PtTPP) is a triplet emitter. EL emission from the fluorene segment was completely quenched for copolymers with PtTPP content as low as 0.5 mol %. The PFO-PtTPP copolymers emit deep red emission. The highest external quantum efficiency of the devices based on the platinum(11) complex PFO-PtTPPI (1 mol % PtTPP in copolymer) was 0.43% with emission peaking at 676 nm.

引用

页码：4509 / 4518

页数：10