Improvement in piezoelectric effect of violet InGaN laser diodes

Sheng Horng Yen, Yen-Kuang Kuo

研究成果: Article同行評審

13 引文 斯高帕斯(Scopus)

摘要

The laser performance of violet InGaN laser diodes is investigated numerically. The polarization-dependent properties, including overlap of electron and hole wavefunctions, threshold current, and slope efficiency, are studied through the use of step-like quantum well structure. Furthermore, the electron and hole wavefunctions, band diagrams, and emission wavelength are compared and analyzed. The simulation results show that the lowest threshold current and the highest slope efficiency are obtained when the step-like quantum well structure is designed as In0.12Ga0.88N (2.5 nm)-In0.18Ga0.82N (1 nm) or In0.18Ga0.82N (2.5 nm)-In0.12Ga0.88N (1 nm) for violet laser diodes due to sufficiently enhanced overlap of electron and hole wavefunctions.

原文English
頁(從 - 到)4735-4740
頁數6
期刊Optics Communications
281
發行號18
DOIs
出版狀態Published - 2008 九月 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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