Optical performance of N-face AlGaN ultraviolet light emitting diodes

Hong Ping Yu, Shi Bin Li, Peng Zhang, Shuang Hong Wu, Xiong Bang Wei, Zhi Ming Wu, Zhi Chen

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The optical property and injection efficiency of N-face AlGaN based ultraviolet light emitting diodes (UV-LEDs) are studied and compared with Ga-face AlGaN based UV-LEDs. A staircase electron injector is introduced in the N-face AlGaN based UV-LED. The electroluminescence spectra, power-current performance curves, energy band diagrams, carrier concentration and radiative recombination rate are numerically calculated. The results indicate that the N-face UV-LED has a better optical performance than the Ga-face UV-LED, and the injection efficiency is enhanced owing to the fact that the staircase electron injector is available for UV-LEDs.

Original languageEnglish
Article number108502
JournalChinese Physics Letters
Issue number10
StatePublished - Oct 1 2014

Bibliographical note

Publisher Copyright:
© 2014 Chinese Physical Society and IOP Publishing Ltd.

ASJC Scopus subject areas

  • Physics and Astronomy (all)


Dive into the research topics of 'Optical performance of N-face AlGaN ultraviolet light emitting diodes'. Together they form a unique fingerprint.

Cite this