Physical and technological analysis of the AlGaN-based UVC-LED: An extended discussion focused on cubic phase as an alternative for surface disinfection

H. I. Solís-Cisneros, C. A. Hernández-Gutiérrez, A. Rehman Anwar, P. Y. Sevilla-Camacho, J. L. Camas-Anzueto, R. Grajales-Coutin˜o, R. Trejo-Hernández, Y. L. Casallas-Moreno, M. López-López

Research output: Contribution to journalArticlepeer-review

Abstract

Crisis in coronavirus times requires understanding the effects on society and establishing efficient mechanisms to prevent infections. The disinfection of personal protection equipment by UVC light remains a key opportunity area. Therefore, this letter presents the main drawbacks and challenges on the fabrication of deep ultraviolet LEDs based on III-nitrides, such as the substrate selection, dislocation reduction, the increase of external quantum efficiency, enhancement of the radiative recombination in the active region, the complications to reach high Al content in AlGaN-based UVC LED avoiding the reduction of the p-doping, replacing the p-GaN contact layer by p-AlGaN without hindering the deposition of ohmic contacts. Furthermore, the cubic phase is suggested as a promising candidate for AlGaN UVC-LEDs applications as is discussed in this work.

Original languageEnglish
Article number020301
JournalRevista Mexicana de Fisica
Volume68
Issue number2
DOIs
StatePublished - Mar 2022

Keywords

  • AlGaN
  • Ultraviolet light-emitting diodes
  • cubic
  • disinfection
  • external quantum efficiency

Fingerprint

Dive into the research topics of 'Physical and technological analysis of the AlGaN-based UVC-LED: An extended discussion focused on cubic phase as an alternative for surface disinfection'. Together they form a unique fingerprint.

Cite this