Light-Emitting Diodes with Hierarchical and Multifunctional Surface Structures for High Light Extraction and an Antifouling Effect

Young-Chul Leem; Jung Su Park; Joon Heon Kim; NoSoung Myoung; Sang-Youp Yim; Sehee Jeong; Wantae Lim; Sung-Tae Kim; Seong-Ju Park

doi:10.1002/smll.201502354

Light-Emitting Diodes with Hierarchical and Multifunctional Surface Structures for High Light Extraction and an Antifouling Effect

Small. 2016 Jan 13;12(2):161-8. doi: 10.1002/smll.201502354. Epub 2015 Nov 17.

Authors

Young-Chul Leem¹, Jung Su Park², Joon Heon Kim², NoSoung Myoung², Sang-Youp Yim², Sehee Jeong¹, Wantae Lim³, Sung-Tae Kim³, Seong-Ju Park¹

Affiliations

¹ School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 500-712, South Korea.
² Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju, 500-712, South Korea.
³ Chip Development Team, Samsung Electronics, Yong-In, 446-711, South Korea.

PMID: 26573888
DOI: 10.1002/smll.201502354

Abstract

Bioinspired hierarchical structures on the surface of vertical light-emitting diodes (VLEDs) are demonstrated by combining a self-assembled dip-coating process and nanopatterning transfer method using thermal release tape. This versatile surface structure can efficiently reduce the total internal reflection and add functions, such as superhydrophobicity and high oleophobicity, to achieve an antifouling effect for VLEDs.

Keywords: biomimetics; hierarchical structures; light extraction efficiency; light-emitting diodes; superhydrophobic surfaces.

Publication types

Research Support, Non-U.S. Gov't