Effect of composition-graded interlayers in double-heterostructure blue InGaN light-emitting diodes

研究成果: Article

2 引文 斯高帕斯(Scopus)

摘要

The optical and electrical characteristics of the double-heterostructure (DH) blue InGaN light-emitting diodes (LEDs) with composition-graded interlayers are studied numerically. Specifically, the detailed physical mechanisms and influences of grading layer thickness on the LED performance are explored systematically. Simulation results reveal that besides the advantages of mitigating lattice relaxation in real epitaxy, the employment of thick composition-graded interlayers can benefit from the enhanced spatial separation of electron-hole wavefunctions, suppressed Auger recombination, and reduced polarization effect in DH active region. The illumination efficiency and electrical characteristics are markedly improved when the thick grading layers are employed.

原文English
頁(從 - 到)154-157
頁數4
期刊Physica Status Solidi (A) Applications and Materials Science
213
發行號1
DOIs
出版狀態Published - 2016 一月 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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