Enhanced light extraction in III-nitride ultraviolet photonic crystal light-emitting diodes

J. Shakya, K. H. Kim, J. Y. Lin, H. X. Jiang

Research output: Contribution to journalArticlepeer-review

134 Scopus citations

Abstract

The power enhancement by a factor of about 2.5 for 333 nm III-nitride Ultraviolet (UV) Light Emitting Diodes (LED) using two dimensional photonic crystal (PC) was discussed. Triangular arrays of the PCs with different diameters were patterned using electron beam lithography and inductively coupled plasma dry etching. It was observed that the optical enhancement factor depends on the lattice constant and hole size of the PCs. The results show that the PC-LED mesa design aimed at separating the light generation and extraction area.

Original languageEnglish
Pages (from-to)142-144
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number1
DOIs
StatePublished - Jul 5 2004

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