ac excitation of organic light emitting devices utilizing conductive charge generation layers

被引：7

作者：

Brueckner, Jan ^{[1
]}

Christ, Nico ^{[1
]}

Bauder, Olga ^{[1
]}

Gaertner, Christian ^{[1
]}

Seyfried, Moritz ^{[1
]}

Gloeckler, Felix ^{[1
]}

Lemmer, Uli ^{[1
]}

Gerken, Martina ^{[2
]}

机构：

[1] Univ Karlsruhe TH, Lichttech Inst, D-76131 Karlsruhe, Germany

[2] Univ Kiel, D-24143 Kiel, Germany

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 04期

关键词：

conducting polymers; electron mobility; hole mobility; organic light emitting diodes; DIODES; ELECTROLUMINESCENCE; RECOMBINATION; ELECTRODES; INJECTION; VOLTAGE;

D O I：

10.1063/1.3294326

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ac-field-induced charge carrier generation and recombination is studied in an asymmetric conjugated polymer light emitting device based on one injecting electrode and one electrode separated by an insulating layer. Under operation with 130 kHz light intensity emitted by the device exhibits a pronounced asymmetry with respect to the polarity of the electric field. Numerical simulations show that this behavior can be explained by the significantly different mobilities of electrons and holes in the conjugated polymer. This approach enables insight into the device physics of organic light emitting devices with internal charge generation and allows direct investigation of hole and electron mobilities in one single device.

引用

页数：3

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