Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Intense violet-blue-emitting Ba 2 Al B 4 O 9 Cl : Eu 2 + phosphors for applications in fluorescent lamps and ultraviolet-light-emitting diodes

Not Accessible

Your library or personal account may give you access

Abstract

We synthesized a violet-blue phosphor Ba2AlB4O9Cl:Eu2+ with a solid-state reaction. The excitation and emission spectra of this phosphor showed that all were broadband due to 4f74f6d1 transitions of Eu2+. The phosphors with different Eu2+ concentrations presented violet-blue luminescence for ultraviolet [(UV) 250390nm] excitation. The optimum concentration of Eu2+ in Ba2AlB4O9Cl:Eu2+ is determined to be 6mol.%. The luminous efficiency was found to be 8.1lm/W for the violet-blue fluorescent lamp and 3.2lm/W for the violet-blue phosphor-converted light-emitting diode, respectively. Ba2AlB4O9Cl:Eu2+ would be a promising phosphor for converting the UV radiation to violet-blue emission for a novel high light-conversion efficiency phototherapy illuminator.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Novel blue-emitting phosphors - BaBeSiO4:Eu2+: luminescence properties and its application for UV-light emitting diodes

Kai-Yuan Yeh, Chun-Chuen Yang, Wei-Ren Liu, and M.G. Brik
Opt. Mater. Express 6(2) 416-428 (2016)

Emission color variation of (Ba,Sr)3BP3O12:Eu2+ phosphors for white light LEDs

Te-Wen Kuo, Wei-Ren Liu, and Teng-Ming Chen
Opt. Express 18(3) 1888-1897 (2010)

Novel yellowish-orange Sr8Al12O24S2:Eu2+ phosphor for application in blue light-emitting diode based white LED

Te-Wen Kuo, Chien-Hao Huang, and Teng-Ming Chen
Opt. Express 18(S2) A231-A236 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved