以聚芴为主链,通过Suzuki偶联反应合成了一类新型侧链含环金属铱配合物的芴-咔唑有机磷光聚合物PFCzIrpiq,通过凝胶渗透色谱仪测定其分子量,通过核磁共振氢谱表征化学结构,研究了聚合物的光电性能.以该聚合物为发光层制备结构为ITO/PEDOT:PSS (50 nm)/PFCzIrpiq (45 nm)/LiF(0.5 nm)/Al (150 nm)的器件,测试了器件的电致发光性能.结果表明,在聚合物单体中铱配合物单元摩尔投料比对聚合物的发光颜色影响较大:当铱配合物单元摩尔投料比为1％时聚合物器件的色坐标为(0.22,0.22),位于蓝光区域;当增大到5％时聚合物器件色坐标为(0.65,0.35),位于红光区域;随着铱配合物单元摩尔投料比的增大,器件的启亮电压变化较小,而器件的电流密度逐渐减小,器件的最大发光亮度逐渐增大.当铱配合物单元摩尔投料比为5％时,器件的最大发光亮度为48 cd/m2.
参考文献
| [1] | Y.G.Ma,H.Y.Zhang,J.C.Shen,Electroluminescence from triplet metal-ligand charge-transfer excited state of transition metal complexes,Synth.Met.,94,245(1998) |
| [2] | Y.F.Wang,Y.Liu,X.S.Li,H.R.Qi,M.X.Zhu,L.Wang,G.T.Lei,Q.L.Wei,W.G.Zhu,J.B.Peng,Y.Cao,Novel cyclometalated platinum (Ⅱ) complex containing alkyl-trifluorene picolinic acid as emitter for single-layer white PLEDs,Organic Electronics,11(12),1954(2010) |
| [3] | S.Tokito,T.Tsuzuki,E Sato,High-efficiency blue and white phosphorescent organic light-emitting devices,Curr.Appl.Phys.,5(4),331(2005) |
| [4] | S.J.Su,Y.Takahashi,T.Chiba,Structure-property relationship of pyridine-containing triphenyl benzene electron-transport materials for highly efficient blue phosphorescent OLEDs,Adv.Funct.Mater.,19,1260(2009) |
| [5] | Y.Zhou,Q.G.He,Y.Yang,Binaphthyl-containing green-and redemitting molecules for solution-processable organic light-emitting diodes,Adv.Funct.Mater.,18(20),3306(2008) |
| [6] | Y.Y.Lyu,J.Kwak,W.S Jeon,Synthesis of dithienobismoles as novel phosphorescence material,Adv.Funct.Mater.,19,427(2009) |
| [7] | A.H.Liang,Y.H.Li,W.G.Zhu,Y.F.Wang,F.Huang,H.B.Wu,Y.Cao,Novel cyclometalated platinum (Ⅱ) complex containing carrier-transporting groups:synthesis,luminescence and application in single-dopant white PLEDs,Dyes and Pigments,96,732(2013) |
| [8] | Z.Y.Hu,Y.F.Wang,D.Y.Shi,H.Tan,X.S.Li,L.Wang,W.G.Zhu,Y.Cao,Highly-efficiency red-emitting platinum (Ⅱ) complexes containing 4-diaryl amino-1-phenylisoquinoline ligands in polymer light-emitting diodes:Synthesis,structure,photoelectron and electroluminescence,Dyes and Pigments,86(2),166(2010) |
| [9] | X.G.Wu,Y.Liu,Y.F.Wang,L.Wang,H.Tan,M.X.Zhu,W.G.Zhu*,Y.Cao,Highly efficient near-infrared emission from binuclear cyclo-metalated platinum complexes bridged with 5-(4-octyloxyphenyl)-1,3,4-oxadiazole-2-thiol in PLEDs,Organic Electronics,13,932(2012) |
| [10] | B.Du,L.Wang,H.B.Wu,High-efficiency electrophosphorescent copolymers containing charged iridium complexes in the side chains,Chem.Eur.J.,13,7432(2007) |
| [11] | L.Ying,Y.H.Xu,W.Yang,Efficient red-light-emitting diodes based on novel amino-alkyl containing electrophosphorescent polyfluorenes with A1 or Au as cathode,Org.Electron.,10,42(2009) |
| [12] | W.Y.Lai,J.W.Leve,A.C.Jackson,A phosphorescent poly (dendrimer) containing iridium (Ⅲ) complexes:synthesis and lightemitting properties,Macromolecules,43(17),6994(2010) |
| [13] | X.H.Yang,F.I.Wu,D.Neher,Efficient red-emitting electrophosphorescent polymers,Chem.Mater.,20(4),1629(2008) |
| [14] | H,Tan,J.T.Yu,J.H.Chen,K.X.Nie,Q.Chen,Y.Huang,Z.Y.Zhang,Y.F.Wang,Y.Liu,G.T.Lei,W.G.Zhu,Polyfluorene derivatives pending iridium complexes:improved optoelectronic properties by introducing D-A units and altering pendent mode,Journal of Polymer Science Part A:Polymer Chemistry,50,1900(2012) |
| [15] | H,Tan,J.T.Yu,K.X.Nie,J.H.Chen,X.E Deng,Z.Y.Zhang,G.T.Lei,M.X.Zhu,Y.Liu,W.G.Zhu,D-A-based polyfluorene derivatives end-capped with cyclometalated iridium complexes by unconjugated linkage:structure-property relationships,Polymers,52,4792(2011) |
| [16] | M.J.Park,J.Kwak,J.Lee,Single chain white-light-emitting polyfluorene copolymers containing iridium complex coordinated on the main chain,Macromolecules,43,1379(2010) |
| [17] | J.Y.Deng,Y.Liu,Y.F.Wang,H.Tan,Z.Y.Zhang,G.T.Lei,M.X.Zhu,W.G.Zhu,Y.Cao,Synthesis,characterization and photophysics of fluorene-alt-oxadiazole copolymers containing pendent iridium (Ⅲ) complex moiety,European Polymer Journal,47,1836(2011) |
| [18] | J.Huang,Y.S.Xu,Q.Hou,Novel red electroluminescent polymers derived from carbazole and 3,6-Bis (2-thienyl)-1,2,7-benzothiadiazoleMacromol,Rapid Commun.,23,709(2002) |
| [19] | K.L.Chan,S.E.Watkins,C.S.K.Mak,Poly(9,9-dialkyl-3,6-dibenzosilole)-a high energy gap host for phosphorescent light emitting devices,Chem.Commun.,5766(2005) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%