Improvement of the light extraction efficiency of top-emitting organic light-emitting diodes by a two-dimensional diffraction layer fabricated using self-assembled nanoparticles

Abstract

The light extraction efficiency of top-emitting organic light-emitting diodes (OLEDs) was improved by insertion of a two-dimensional (2D) diffraction layer. The 2D diffraction layer was fabricated by our original nanofabrication technique, the embedded particle monolayer method, which could form a self-assembled particle monolayer. As a result, the electroluminescence intensity of the device with the 2D diffraction layer was improved by 1.67 times (in total luminous flux) and 2.07 times (in peak wavelength). High luminance top-emitting OLEDs were fabricated using the potentially low-cost self-assembling technique.

© 2009 Optical Society of America

Nanoparticle scattering layer for improving light extraction efficiency of organic light emitting diodes

Chur-Hyun Shin, Eul Yong Shin, Min-Hoi Kim, Jae-Hyun Lee, and Yoonseuk Choi
Opt. Express 23(3) A133-A139 (2015)

Enhancement of light-extraction efficiency of organic light-emitting diodes using silica nanoparticles embedded in TiO₂ matrices

Jooyoung Lee, Yun Young Kwon, Eun-Ho Choi, JeongWoo Park, Hong Yoon, and Hyunbin Kim
Opt. Express 22(S3) A705-A714 (2014)

Improved light extraction efficiency in organic light emitting diodes with a perforated WO₃ hole injection layer fabricated by use of colloidal lithography

Chung Sock Choi, Sung-Min Lee, Myung Sub Lim, Kyung Cheol Choi, Donghyuk Kim, Duk Young Jeon, Youngjo Yang, and O Ok Park
Opt. Express 20(S2) A309-A317 (2012)

Fabrication of subwavelength structure for improvement in light-extraction efficiency of light-emitting devices using a self-assembled pattern of block copolymer

Koji Asakawa and Akira Fujimoto
Appl. Opt. 44(34) 7475-7482 (2005)

Self-organized nanoparticle photolithography for two-dimensional patterning of organic light emitting diodes

Getachew T. Ayenew, Alexis P. A. Fischer, Chia-Hua Chan, Chii-Chang Chen, Mahmoud Chakaroun, Jeanne Solard, Lung-Han Peng, and Azzedine Boudrioua
Opt. Express 22(S6) A1619-A1633 (2014)