The built-in potential in blue polyfluorene-based light-emitting diodes

被引：19
|
作者：
Bodrozic, Vladimir [1 ,2 ]
Brown, Thomas M. [3 ]
Mian, Shabbir [4 ]
Caruana, Daren [2 ,5 ]
Roberts, Matthew [6 ]
Phillips, Nathan [6 ]
Halls, Jonathan J. [6 ]
Grizzi, Ilaria [6 ]
Burroughes, Jeremy H. [6 ]
Cacialli, Franco [1 ,2 ]
机构：
[1] UCL, Dept Phys & Astron, London WC1E 6BT, England
[2] London Ctr Nanotechnol, London WC1E 6BT, England
[3] Univ Roma Tor Vergata, Dept Elect Engn, CHOSE, I-00133 Rome, Italy
[4] McDaniel Coll, Dept Phys, Westminster, MD 21157 USA
[5] UCL, Dept Chem, London WC1E 6BT, England
[6] Cambridge Display Technol, Cambridge CB3 0TX, England
来源：
ADVANCED MATERIALS | 2008年 / 20卷 / 12期
关键词：
D O I：
10.1002/adma.200702346
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Energy level alignment in polyfluorene-based polymer light-emitting diodes (PLEDs) is studied with electroabsorption spectroscopy and cyclic voltammetry (CV). Using an active layer containing a blend of three polyfluorenes, it is found that the built-in potential values are determined by the interplay of the contacts work function and the lowest and highest lying energy levels of the blend components.
引用
收藏
页码：2410 / +
页数：7
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