物理化学学报
物理化學學報
물이화학학보
ACTA PHYSICO-CHIMICA SINICA
2015年
1期
17-22
,共6页
韦传东%葛国平%李春艳%雷克微%梁洪泽%禹钢%刘志伟
韋傳東%葛國平%李春豔%雷剋微%樑洪澤%禹鋼%劉誌偉
위전동%갈국평%리춘염%뢰극미%량홍택%우강%류지위
铱(III)配合物%吡嗪%磷光材料%有机电致发光器件
銥(III)配閤物%吡嗪%燐光材料%有機電緻髮光器件
의(III)배합물%필진%린광재료%유궤전치발광기건
Iridium(III) complex%Pyrazine%Phosphorescent material%Organic light-emitting diode
合成了一种铱配合物二(4,4'-二氟-5-甲基-2,3-二苯基吡嗪)(乙酰丙酮)合铱[(MDPPF)2Ir(acac)]的有机电致发光器件(OLED),利用X射线单晶衍射仪测定了该化合物的晶体结构.利用紫外-可见吸收光谱、发射光谱对其光物理性质进行研究.结果表明：(MDPPF)2Ir(acac)的单晶结构属于三斜晶系, P1空间群,晶胞参数 a=1.13984(3) nm, b=1.26718(3) nm, c=1.29541(3) nm,α=93.7181(19)°,β=101.638(2)°,γ=110.853(3)°, V=1.69336(7) nm3；(MDPPF)2Ir(acac)在二氯甲烷溶液中的发射峰为555 nm.以(MDPPF)2Ir(acac)为客体材料,制备了结构为 ITO/NPB(40 nm)/CBP：(MDPPF)2Ir(acac)(20 nm)/TPBi(10 nm)/Alq3(30 nm)/LiF(1 nm)/Al (100 nm)的一系列不同掺杂浓度器件,器件的发射峰位于558 nm,最大亮度达到32700 cd?m-2,最大电流效率44.3 cd?A-1,最大功率效率20.7 lm?W-1.
閤成瞭一種銥配閤物二(4,4'-二氟-5-甲基-2,3-二苯基吡嗪)(乙酰丙酮)閤銥[(MDPPF)2Ir(acac)]的有機電緻髮光器件(OLED),利用X射線單晶衍射儀測定瞭該化閤物的晶體結構.利用紫外-可見吸收光譜、髮射光譜對其光物理性質進行研究.結果錶明：(MDPPF)2Ir(acac)的單晶結構屬于三斜晶繫, P1空間群,晶胞參數 a=1.13984(3) nm, b=1.26718(3) nm, c=1.29541(3) nm,α=93.7181(19)°,β=101.638(2)°,γ=110.853(3)°, V=1.69336(7) nm3；(MDPPF)2Ir(acac)在二氯甲烷溶液中的髮射峰為555 nm.以(MDPPF)2Ir(acac)為客體材料,製備瞭結構為 ITO/NPB(40 nm)/CBP：(MDPPF)2Ir(acac)(20 nm)/TPBi(10 nm)/Alq3(30 nm)/LiF(1 nm)/Al (100 nm)的一繫列不同摻雜濃度器件,器件的髮射峰位于558 nm,最大亮度達到32700 cd?m-2,最大電流效率44.3 cd?A-1,最大功率效率20.7 lm?W-1.
합성료일충의배합물이(4,4'-이불-5-갑기-2,3-이분기필진)(을선병동)합의[(MDPPF)2Ir(acac)]적유궤전치발광기건(OLED),이용X사선단정연사의측정료해화합물적정체결구.이용자외-가견흡수광보、발사광보대기광물이성질진행연구.결과표명：(MDPPF)2Ir(acac)적단정결구속우삼사정계, P1공간군,정포삼수 a=1.13984(3) nm, b=1.26718(3) nm, c=1.29541(3) nm,α=93.7181(19)°,β=101.638(2)°,γ=110.853(3)°, V=1.69336(7) nm3；(MDPPF)2Ir(acac)재이록갑완용액중적발사봉위555 nm.이(MDPPF)2Ir(acac)위객체재료,제비료결구위 ITO/NPB(40 nm)/CBP：(MDPPF)2Ir(acac)(20 nm)/TPBi(10 nm)/Alq3(30 nm)/LiF(1 nm)/Al (100 nm)적일계렬불동참잡농도기건,기건적발사봉위우558 nm,최대량도체도32700 cd?m-2,최대전류효솔44.3 cd?A-1,최대공솔효솔20.7 lm?W-1.
An iridium(III) complex of (MDPPF)2Ir(acac) (MDPPF=4,4'-difluoro-5-methyl-2,3-diphenylpyrazine, acac=acetylacetone) has been prepared and characterized by X-ray single crystal diffraction. The photophysical properties of (MDPPF)2Ir(acac) were investigated using UV-Vis spectroscopy and photoluminescence (PL) techniques. X-ray diffraction (XRD) studies revealed that the complex belongs to a triclinic system of the P1 space group with cel dimensions a=1.13984(3) nm, b=1.26718(3) nm, c=1.29541(3) nm, α=93.7181(19)°, β=101.638(2)°, γ=110.853(3)° and V=1.69336(7) nm3.Asolution of the (MDPPF)2Ir(acac) complex in dichloromethane was found to emit yel ow light with a maximum peak at 555 nm at room temperature. Furthermore, (MDPPF)2Ir(acac) was used as a phosphorescence dopant in organic light-emitting diodes (OLEDs) with the structures of ITO/NPB (40 nm)/CBP:(MDPPF)2Ir(acac) (20 nm)/TPBi (10 nm)/Alq3 (30 nm)/LiF (1 nm)/Al (100 nm). These devices showed yel ow emission at 558 nm, a maximum brightness of 32700 cd?m-2, current efficiency of 44.7 cd?A-1 and power efficiency of 20.7 lm?W-1.
