Effect of anti-reflective nano-patterns on LED package

Ju Hyeon Shin, Hak Jong Choi, Kang Soo Han, Seunghyun Ra, Kyung Woo Choi, Heon Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Many recent studies have focused on enhancing the efficiency of optical devices such as light-emitting diodes (LEDs). However, optical device efficiency decreases when generated light passes through the LED packaging material. Herein, we developed a technique to improve the effi ciency of LED packages and the external efficiency of the optical devices, which were packaged. Specifically, anti-reflection patterns consisting of moth-eye structures were used to prevent internal reflection from the surface of the LED package. These nanosized conical structures were fabricated with nano-imprint lithography, which is a next-generation lithography technology. Fine nanosized moth-eye patterns were formed on the surface of an LED package, increasing its efficiency by 3.27%.

Original languageEnglish
JournalCurrent Applied Physics
Volume13
Issue number4 SUPPL.2
DOIs
Publication statusPublished - 2013 Jul 20

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Keywords

  • Anti-reflective nano-structure
  • LED package
  • Moth-eye structure
  • Nano-imprint lithography
  • Silicone

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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