Fabrication and characterization of GaN-based light-emitting diode (LED) with triangle-type structure

Hwan Gi Lee, Jae Hwa Seo, Young Jun Yoon, Young Jae Kim, Jungjoon Kim, Seongjae Cho, Eou Sik Cho, Jin Hyuk Bae, Jung Hee Lee, In Man Kang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This study investigated characteristics of the fabricated triangle-type light-emitting diode (T-LED), conventional triangular LED (CT-LED), and conventional square LED (CS-LED). The T-LED is expected to provide uniform current spreading that leads to high output power, low current crowding, and high light extraction in the lateral direction of the LED device, compared to CT-LED and CS-LED. The light extraction of the T-LED in the lateral direction is much higher than that of the CT-LED and the CS-LED due to enhancement of light emission from the sidewalls of the T-LED.

Original languageEnglish
Pages (from-to)163-169
Number of pages7
JournalMolecular Crystals and Liquid Crystals
Issue number1
StatePublished - 13 Aug 2014

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Copyright © Taylor & Francis Group, LLC.


  • External quantum efficiency
  • Light emission patterns
  • Light-emitting diode
  • Triangle-type LED


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