Enhanced efficiency of organic light-emitting devices by employing a periodically corrugated conductive photoresist

被引：4

作者：

Bai, Yu ^{[1
]}

Fan, Yi ^{[1
]}

Lu, Qipeng ^{[1
]}

Wang, Xiaoyi ^{[1
]}

Chu, Minghui ^{[1
]}

Liu, Xingyuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2015年 / 8卷 / 02期

基金：

美国国家科学基金会;

关键词：

2-DIMENSIONAL PHOTONIC CRYSTAL; MEDIATED EMISSION; DIODES; EXTRACTION;

D O I：

10.7567/APEX.8.022102

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photons trapped in the form of waveguide (WG) modes associated with the organic/organic interface and in the form of surface plasmon polariton (SPP) modes associated with the metallic electrode/organic interface result in a large energy loss in organic light-emitting devices (OLEDs). We demonstrate the efficient outcoupling of WG and SPP modes by integrating a wavelength-scale periodically corrugated conductive photoresist into the device structure. The corrugated OLEDs with appropriate grating periods lead to a 15.9% increase in efficiency compared with the planar OLEDs. The efficient outcoupling of the WG and SPP modes is verified by the numerical simulation of both the emission spectra and the field distribution. (C) 2015 The Japan Society of Applied Physics.

引用

页数：4

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