Zinc Sulphide Overlayer Two-Dimensional Photonic Crystal for Enhanced Extraction of Light from a Micro Cavity Light-Emitting Diode

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概要

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• A two-dimensional (2D) ZnS photonic crystal was deposited on the surface of a one-dimensional (1D) III–nitride micro cavity light-emitting diode (LED), to intermix the light extraction features of both structures (1D+2D). The deposition of an ideal micro-cavity optical thickness of ${\approx}\lambda/2$ is impractical for III–nitride LEDs, and in realistic multi-mode devices a large fraction of the light is lost to internal refraction as guided light. Therefore, a 2D photonic crystal on the surface of the LED was used to diffract and thus redirect this guided light out of the semiconductor over several hundred microns. Additionally, the employment of a post-epitaxy ZnS 2D photonic crystal avoided the typical etching into the GaN:Mg contact layer, a procedure which can cause damage to the near surface.

• 2008-10-25

著者

• Kim Jihyun

  Department Of Chemical And Biological Engineering Korea University

• Meyer Jerry

  U.S. Naval Research Laboratory, Optical Science Division, 4555 Overlook Ave., SW, Washington, D.C. 20375, U.S.A.

• Kim Chul

  U.S. Naval Research Laboratory, Optical Science Division, 4555 Overlook Ave., SW, Washington, D.C. 20375, U.S.A.

• Vurgaftman Igor

  U.S. Naval Research Laboratory, Optical Science Division, 4555 Overlook Ave., SW, Washington, D.C. 20375, U.S.A.

• Caldwell Josh

  U.S. Naval Research Laboratory, Electronics Science and Technology Division, 4555 Overlook Ave., SW, Washington, D.C. 20375, U.S.A.

• Kim Jihyun

  Department of Chemical and Biological Engineering, Korea University, Seoul 136-701, Korea

• Kim Mijin

  U.S. Naval Research Laboratory, Optical Science Division, 4555 Overlook Ave., SW, Washington, D.C. 20375, U.S.A.

• Eddy Charles

  U.S. Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, D.C. 20375, U.S.A.

• Holm Ron

  U.S. Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, D.C. 20375, U.S.A.

• Mastro Michael

  U.S. Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, D.C. 20375, U.S.A.

• Eddy Charles

  U.S. Naval Research Laboratory, Electronics Science and Technology Division, 4555 Overlook Ave., SW, Washington, D.C. 20375, U.S.A.

関連論文

• White Light Emission from Blue InGaN LED with Fluorescent Conjugated Polymer Blends
• Zinc Sulphide Overlayer Two-Dimensional Photonic Crystal for Enhanced Extraction of Light from a Micro Cavity Light-Emitting Diode
• Improved Explicit Current–Voltage Model for Long-Channel Undoped Surrounding-Gate Metal Oxide Semiconductor Field Effect Transistor
• Wurtzite III–Nitride Distributed Bragg Reflectors on Si(100) Substrates

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