Modifying the improved light-output intensity of A1GaInP-based leds by nanoporous alimina

Chien Chun Wang, Chien Chih Liu, Kwok Keung Chong, Chen I. Hung, Yeong Her Wang, Mau Phon Houng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This investigation describes the development of AlGalnP light-emitting diodes (LEDs) with a nanometer diameter of porous anodic alumina (PAA) films which are formed by anodization technique to improve and modifythe light extraction efficiency. The pore-widening time was changed for surface modulation to obtain the optimum light extraction efficiency. The diameter of nano-pores varies from 30nm to 60 nm and the interpore spacing is about 75 nm.The light output intensity of the PAA LEDs with 40 minutes pore-widening is 1.39 times that of conventional LEDs. PAA films can effectively reduce critical angle loss, Fresnel loss and be used as scattering center to improve the light extraction.

Original languageEnglish
Title of host publication2008 International Conference on Indium Phosphide and Related Materials, IPRM 2008
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 International Conference on Indium Phosphide and Related Materials, IPRM 2008 - Versailles, France
Duration: 2008 May 252008 May 29

Publication series

NameConference Proceedings - International Conference on Indium Phosphide and Related Materials
ISSN (Print)1092-8669

Other

Other2008 International Conference on Indium Phosphide and Related Materials, IPRM 2008
CountryFrance
CityVersailles
Period08-05-2508-05-29

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Wang, C. C., Liu, C. C., Chong, K. K., Hung, C. I., Wang, Y. H., & Houng, M. P. (2008). Modifying the improved light-output intensity of A1GaInP-based leds by nanoporous alimina. In 2008 International Conference on Indium Phosphide and Related Materials, IPRM 2008 [4702899] (Conference Proceedings - International Conference on Indium Phosphide and Related Materials). https://doi.org/10.1109/ICIPRM.2008.4702899