Increased efficiency in vertically segregated thin-film conjugated polymer blends for light-emitting diodes

被引：90

作者：

Corcoran, N ^{[1
]}

Arias, AC ^{[1
]}

Kim, JS ^{[1
]}

MacKenzie, JD ^{[1
]}

Friend, RH ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Dept Phys, Cambridge CB3 0HE, England

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 02期

关键词：

D O I：

10.1063/1.1537049

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of film morphology on the performance of conjugated polymer-blend light-emitting diodes (LEDs) has been investigated. Vertically segregated structures have been fabricated by varying the spinning conditions and solvents used so that phase separation normal to the substrate is induced. External quantum efficiencies show that LEDs made with vertically segregated structures are between 25% and 100% more efficient than laterally segregated LEDs, depending on the scale of lateral phase separation. (C) 2003 American Institute of Physics.

引用

页码：299 / 301

页数：3

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