کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9812812 | 1518120 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and electroluminescence properties of europium (III) complexes with new second ligands
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and electroluminescence properties of europium (III) complexes with new second ligands Synthesis and electroluminescence properties of europium (III) complexes with new second ligands](/preview/png/9812812.png)
چکیده انگلیسی
Two novel second ligands, 9,9-Di-(4-methoxyphenyl)-9-H-4,5-` (OMe-Spiro-DF) and 9,9-Di-(2-(4-(4-butyloxy)phenyl)-5-phenyl-1,3,4-oxadiazolyl)-phenyl-9-H-4,5-Diazafluorene (OXD-Spiro-DF), were successfully prepared. Europium complexes, Eu(DBM)3(OMe-Spiro-DF) and Eu(DBM)3(OXD-Spiro-DF) (DBM=dibenzolylmethane) based on the two ligands were designed and synthesized. For a double-layer device with configuration of indium tin oxide (ITO)/N, Nâ²-diphenyl-N,Nâ²-bis(3-methylphenyl)-1,1â²-biphenyl-4,4â²-diamine (TPD)/Eu(DBM)3(OXD-Spiro-DF) or Eu(DBM)3(OMe-Spiro-DF)/Mg/Ag, compared with the device based on complex Eu(DBM)3(OMe-Spiro-DF), the brightness and electroluminescent (EL) efficiency of device based on complex Eu(DBM)3(OXD-Spiro-DF) with oxadiazole-functionalized ligand OXD-Spiro-DF are significantly improved due to the improvement of electron-transporting ability. A maximum brightness of 154 cd/m2 was obtained at 17 V in the complex Eu(DBM)3(OXD-Spiro-DF), about four times brighter than the corresponding complex Eu(DBM)3(OMe-Spiro-DF).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 478, Issues 1â2, 1 May 2005, Pages 265-270
Journal: Thin Solid Films - Volume 478, Issues 1â2, 1 May 2005, Pages 265-270
نویسندگان
Ze Liu, Fushan Wen, Wenlian Li,