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1. 宁波大学 材料科学与化学工程学院, 宁波市新型功能材料及其制备科学实验室-省部共建国家重点实验室培育基地,浙江 宁波,315211
2. 北京大学 化学与分子工程学院 北京,100871
纸质出版日期:2016-3-5,
收稿日期:2015-12-7,
修回日期:2016-1-9,
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杜春暖, 盛烨锋, 葛国平等. 磷光吡嗪铱(Ⅲ)配合物的合成及发光性质[J]. 发光学报, 2016,37(3): 280-285
DU Chun-nuan, SHENG Ye-feng, GE Guo-ping etc. Synthesis and Luminescence Property of Four Phosphorescent Iridium(Ⅲ) Pyrazine Complexes[J]. Chinese Journal of Luminescence, 2016,37(3): 280-285
杜春暖, 盛烨锋, 葛国平等. 磷光吡嗪铱(Ⅲ)配合物的合成及发光性质[J]. 发光学报, 2016,37(3): 280-285 DOI: 10.3788/fgxb20163703.0280.
DU Chun-nuan, SHENG Ye-feng, GE Guo-ping etc. Synthesis and Luminescence Property of Four Phosphorescent Iridium(Ⅲ) Pyrazine Complexes[J]. Chinese Journal of Luminescence, 2016,37(3): 280-285 DOI: 10.3788/fgxb20163703.0280.
合成了4种吡嗪铱配合物
用质谱和
1
H NMR对配合物结构进行了表征
通过紫外-可见吸收光谱和光致发光光谱对其光物理性质进行了研究。结果表明:4种铱配合物都出现了金属-配体电荷转移( MLCT )吸收峰。铱配合物1 [(DFMPPZ)
2
Ir(pic)]、2 [(DFMPPZ)
2
IrCl(PPh
3
)]、3 [(DFMPPZ)
2
Ir(CN)(PPh
3
)]和4 [(DPPF)
2
Ir(acac)]的发射波长分别为528
536
535
561 nm
都是潜在的黄、绿色磷光材料。以铱配合物4为客体材料
制备了结构为ITO/MoO
3
(1 nm)/CBP(35 nm)/CBP:Ir(15 nm)/TPBi(50 nm)/LiF(1nm)/Al(100 nm)的一系列不同掺杂浓度的器件
器件的发射波长为567 nm
最大亮度达到32 110 cdm
-2
最大电流效率为32.4 cdA
-1
最大功率效率为28.2 lmW
-1
。
Four iridium (Ⅲ) pyrazine complexes 1 [(DFMPPZ)
2
Ir(pic)]
2 [(DFMPPZ)
2
IrCl-(PPh
3
)]
3 [(DFMPPZ)
2
Ir(CN)(PPh
3
)]
and 4 [(DPPF)
2
Ir(acac)] were synthesized
where DFMPPZ= 2-(2
4-difluorophenyl)- 3-methylpyrazine
pic=picolinate
Ph=phenyl
acac=acetylacetonate
MDPPF=4
4'-difluoro-5-methyl-2
3- diphenylpyrazine. The complexes were characterized by mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopy. Their photophysical properties were investigated by UV-Vis and photoluminescence (PL) spectroscopy. All of these Ir (Ⅲ) complexes show the noticeable absorption peaks from metal-to-ligand charge transfer (MLCT) transitions. The iridium (Ⅲ) complexes 1
2
3 and 4 have strong photoluminescence at 528
536
535 and 561 nm
respectively. Moreover
the iridium (Ⅲ) complex 4 was utilized as phosphorescence dopant in OLEDs with the structures of ITO/MoO
3
(1 nm)/CBP(35 nm)/CBP:Ir(15 nm)/TPBi(50 nm)/LiF(1nm)/Al(100 nm). The devices showed yellow emission at 567 nm with a maximum brightness of 32 110 cdm
-2
current efficiency of 32.4 cdA
-1
and power efficiency of 28.2 lmW
-1
.
铱配合物吡嗪磷光材料有机电致发光器件
iridium complexpyrazinephosphorescent materialOLED
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