The impacts of green LaBSiO5: Tb3+, Ce3+ phosphor on lumen output of white LEDs

Autor:	Ha Thanh Tung, Huu Phuc Dang, Phung Ton That
Rok vydání:	2023
Předmět:	Control and Optimization Computer Networks and Communications Hardware and Architecture Control and Systems Engineering Computer Science (miscellaneous) Electrical and Electronic Engineering Instrumentation Information Systems
Zdroj:	Bulletin of Electrical Engineering and Informatics. 12:1458-1463
ISSN:	2302-9285 2089-3191
DOI:	10.11591/eei.v12i3.4772
Popis:	The traditional solid-state technique was used to create LaBSiO5 phosphors doped with Ce3+ and Tb3+ at 1,100 °C. These phosphors' phase purity and luminous characteristics are looked at. Under ultraviolet (UV) light stimulation, LaBSiO5: Tb3+ phosphors emit bright green light, whereas LaBSiO5 samples incorporated with Ce3+ emit blue-violet light. With UV ray stimulation, LaBSiO5 samples incorporated with Ce3+ as well as Tb3+ emit blue-violet as well as green illumination. The 5d-4f shift for Ce3+ is responsible for the blue-violet radiation, while the 5D4→7F5 transition of Tb3+ is responsible for the green radiation. The mechanism for power conversion between Ce3+ and Tb3+ was examined since there is a spectral overlap among the stimulation line for Tb3+ and the emitting line for Ce3+.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::97768de899efbe344bceb63209e7b3d2 https://doi.org/10.11591/eei.v12i3.4772 Zobrazit plný text záznamu