TY - JOUR
T1 - Physical and technological analysis of the AlGaN-based UVC-LED
T2 - An extended discussion focused on cubic phase as an alternative for surface disinfection
AU - Solís-Cisneros, H. I.
AU - Hernández-Gutiérrez, C. A.
AU - Rehman Anwar, A.
AU - Sevilla-Camacho, P. Y.
AU - Camas-Anzueto, J. L.
AU - Grajales-Coutin˜o, R.
AU - Trejo-Hernández, R.
AU - Casallas-Moreno, Y. L.
AU - López-López, M.
N1 - Publisher Copyright:
© 2022
PY - 2022/3
Y1 - 2022/3
N2 - 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.
AB - 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.
KW - AlGaN
KW - Ultraviolet light-emitting diodes
KW - cubic
KW - disinfection
KW - external quantum efficiency
UR - http://www.scopus.com/inward/record.url?scp=85125380281&partnerID=8YFLogxK
U2 - 10.31349/RevMexFis.68.020301
DO - 10.31349/RevMexFis.68.020301
M3 - Artículo
AN - SCOPUS:85125380281
SN - 0035-001X
VL - 68
JO - Revista Mexicana de Fisica
JF - Revista Mexicana de Fisica
IS - 2
M1 - 020301
ER -