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

被引：20

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

页码：2410 / +

页数：7

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