将具有良好空穴传输能力的咔唑基团引入到一个新型β-二酮配体CCHPD(1-[(6-(9H-carbazol-9-yl)hexoxy)phenyl]-3-[(6-(9H-carbazol-9-yl)-hexoxy)-phenyl]-1,3-dione)中, 然后分别以1,10-邻菲咯啉(Phen)和4,7-二苯基-1,10-邻菲咯啉(Bath)为中性配体合成了两种相应的树枝状铕配合物. 配合物在230～350 nm的紫外光激发下都可以发射出非常强的铕离子特征红光(5D0→7FJ (J=0～4)), 主发射峰在612 nm. 含脂肪链的咔唑基团在铕离子的周围形成了"光吸收天线", 拓宽了β-二酮的吸收范围, 屏蔽溶剂分子对稀土离子荧光猝灭效应, 还可以有效地提高铕配合物的空穴传输能力, 对于提高稀土配合物的电致发光性能方面有重要的意义.
参考文献
| [1] | Tang C W;Van Slyke S A .Organic electroluminescent diodes[J].Applied Physics Letters,1987,51:913. |
| [2] | Kido J;Okamoto Y .Organo lanthanide metal complexes for electroluminescent materials[J].Chemical Reviews,2002,102:2357. |
| [3] | Yu JB;Zhou L;Zhang HJ;Zheng YX;Li HR;Deng RP;Peng ZP;Li ZF .Efficient electroluminescence from new lanthanide (Eu3+, Sm3+) complexes[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2005(5):1611-1618. |
| [4] | Adachi C;Baldo M A;Forrest S R .High-efficiency red electrophosphorescence devices[J].Journal of Applied Physics,2000,87:8049. |
| [5] | Fang J F;Ma D G .Efficient red organic light-emitting devices based on a europium complex[J].Applied Physics Letters,2003,83:4041. |
| [6] | Kido J;Hayase H;Hongawa K;Nagai K Okuyama K .Bright red light-emitting organic electroluminescent devices having a europium complex as an emitter[J].Applied Physics Letters,1994,65:2124. |
| [7] | Adachi C;Baldo M;Forrest S R .Electroluminescence mechanisms in organic light emitting devices employing a europiumchelate doped in a wide energy gap bipolar conducting host[J].Journal of Applied Physics,2000,87:8049. |
| [8] | Sun P P;Duan J P;Shih H T;Cheng C H .Europium complex as a highly efficient red emitter in eleetroluminescent devices[J].Applied Physics Letters,2002,81:792. |
| [9] | Sun M;Xin H;Wang K Z;Zhang Y A,Jin L P,Huang C H.Bright and monochromic red light-emitting electroluminescence devices based on a new multifunctional europium ternary complex[J].Chemical Communications(Cambridge),2003:702. |
| [10] | Liang F S;Zhou Q G;Cheng Y X;Wang L X Ma D G Jing X B Wang F S .Oxdiazole functionalized Europium(Ⅲ)-diketonate complex for efficient red electroluminescence[J].Chemistry of Materials,2003,15:1935. |
| [11] | Liang C J;Zhao D;Hong Z R;Zhao D X Liu X Y Li W L Peng J B Yu J Q Lee C S Lee S T .Improved performance of electroluminescent devices based on an europium complex[J].Applied Physics Letters,2000,76:67. |
| [12] | Zheng Y X;Zhou Y H;Yu J B;Yu Y N Zhang H J Gillin W P .Electroluminescence from 5D0→7FJ and 5D1→7FJ (J=0～4) transitions with a europium complex as emitter[J].Journal of Physics D:Applied Physics,2004,37:531. |
| [13] | Zhou L;Zhang H J;Meng Q G;Liu F Y Yu J B Deng R P Peng Z P Li Z F Guo Z Y .Change of the dominant luminescent mechanism with increasing current density in molecularly doped organic light-emitting devices[J].Journal of Luminescence,2007,126:644. |
| [14] | Zhou L;Zhang HJ;Deng RP;Li ZF;Yu JB;Guo ZY .Conversion process of the dominant electroluminescence mechanism in a molecularly doped organic light-emitting device with only electron trapping[J].Journal of Applied Physics,2007(6):064504-1-064504-6-0. |
| [15] | Robinson M R;O'Regan M B;Bazan G C.Synthesis,morphology and optoelectronic properties of tris[(N-ethylcarbazoly1)(3',5'-hexyloxybenzoy1)methane](phenanthroline) Europium[J].Chemical Communications,2000:1645. |
| [16] | Wang JF.;Yang J.;Zheng ZP.;Carducci MD.;Cayou T. Peyghambarian N.;Jabbour GE.;Wang RY. .First oxadiazole-functionalized terbium(III) beta-diketonate for organic electroluminescence[J].Journal of the American Chemical Society,2001(25):6179-6180. |
| [17] | Guan M;Bian Z Q;Li F Y;Xin H Huang C H .Bright red light-emitting electroluminescence devices based on a functionalized europium complex[J].New Journal of Chemistry,2003,27:1731. |
| [18] | Li SF;Zhong G;Zhu WH;Li FY;Pan JF;Huang W;Tian H .Dendritic europium complex as a single dopant for white-light electroluminescent devices[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2005(31):3221-3228. |
| [19] | Zheng YX;Cardinali F;Armaroli N;Accorsi G .Synthesis and photoluminescence properties of heteroleptic europium(III) complexes with appended carbazole units[J].European journal of inorganic chemistry,2008(12):2075-2080. |
| [20] | Nie D;Chen Z;Bian Z;Zhou J Liu Z Chen F Zhao Y Huang C H .Energy transfer pathways in the carbazole functionalized β-diketonate europium complexes[J].New Journal of Chemistry,2007,31:1639. |
| [21] | Martinus H. V. Werts;Ronald T. F. Jukes;Jan W. Verhoeven .The emission spectrum and the radiative lifetime of Eu~(3+) in luminescent lanthanide complexes[J].Physical chemistry chemical physics: PCCP,2002(9):1542-1548. |
| [22] | Armaroli N.;Barigelletti P.;Couchman SM.;Fleming JS. Harden NC.;Jeffery JC.;Mann KLV.;McCleverty JA.;Rees LH.;Starling SR. Ward MD.;Accorsi G. .Structural and photophysical properties of mononuclear and dinuclear lanthanide(III) complexes of multidentate podand ligands based on poly(pyrazolyl)borates[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,1999(25):5769-5776. |
| [23] | Shen L;Shi M;Li FY;Zhang DQ;Li XH;Shi EX;Yi T;Du YK;Huang CH .Polyaryl ether dendrimer with a 4-phenylacetyl-5-pyrazolone-based terbium(III) complex as core: Synthesis and photopysical properties[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2006(16):6188-6197. |
| [24] | Bünzli J C G;Piguet C .Taking advantage of luminescent lanthanide ions[J].CHEMICAL SOCIETY REVIEWS,2005,34:1048. |
| [25] | Klink S I;Grave L;Reinhoudt D N;Veggel F C J M van Werts M H V Geurts F A J Hofstraat J W .A systematic study of the photophysical processes in polydentate triphenylene-functionalized Eu3+,Tb3+,Nd3+,Yb3+,and Er3+ complexes[J].Journal of Physical Chemistry A,2000,104:5457. |
| [26] | Binnemans K.Handbook on The Physics and Chemistry of Rare Earths[M].Amsterdam:Elsevier Science,2005:225. |
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