Title of article
A new high efficiency light emitting material
Author/Authors
Zheng، نويسنده , , Min and Bai، نويسنده , , FengLian and Li، نويسنده , , Yuliang and Yu، نويسنده , , Gui and Yang، نويسنده , , Chunhe and Zhu، نويسنده , , Daoben، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 1999
Pages
2
From page
1275
To page
1276
Abstract
A new high efficiency light emitting copolymer of triphenylamine and pure PPV has been prepared. The resulting polymer (TPA-PPV) was highly soluble in common solvents and the solution can be easily processed into a thin amorphous film. The fluorescence quantum yield of this copolymer in chloroform is almost up to 1.00. Thin films exhibit both photo luminescence and electroluminescence, emitting green light. It can be homogeneously dispersed in a PVK matrix and a thoroughly energy transfer occurred because of the overlap between the emission spectrum of PVK and the absorption spectrum of this copolymer. The single layer light emitting diode Al/TPA-PPV/ITO glass was fabricated and the threshold voltage is 1.5 v.
Keywords
electroluminescence , quantum yield , Conjugated copolymer , Photoluminescence , LED
Journal title
Synthetic Metals
Serial Year
1999
Journal title
Synthetic Metals
Record number
2072619
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