Novel samarium/erbium and samarium/terbium codoped glass phosphor for application in warm white light-emitting-diode

Cosmo M. da Silva Jr.; Artur S. Gouveia-Neto; Luciano A. Bueno

doi:10.1117/12.2036372

27 February 2014 Novel samarium/erbium and samarium/terbium codoped glass phosphor for application in warm white light-emitting-diode

Cosmo M. da Silva Jr., Artur S. Gouveia-Neto, Luciano A. Bueno

Author Affiliations +

Proceedings Volume 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII; 90031G (2014) https://doi.org/10.1117/12.2036372
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Tunable polychromatic light emission within the low color correlated temperature range was produced using terbiumand/ or erbium-samarium co-doped PbGeO₃:PbF₂:CdF₂ glass phosphor. The phosphors were synthesized, and their luminescence characteristics were examined under UV-blue light-emitting-diode laser excitation. Luminescence emission around 490, 545, 600, and 645 nm in Tb³⁺/Sm³⁺ and 525, 545, 600, and 645 nm in Er³⁺/Sm³⁺ co-doped phosphor was obtained and analyzed as a function of the active ions concentration, and excitation wavelength. Color tunability in the red-orange-yellow-green region was achieved combining of Tb³⁺, Er³⁺, and Sm³⁺ ions contents. Results suggest that the color-tunable polychromatic light emitter phosphor herein reported is a promising novel candidate for application in cold white-light LED-based illumination technology

Citation Download Citation

Cosmo M. da Silva Jr., Artur S. Gouveia-Neto, and Luciano A. Bueno "Novel samarium/erbium and samarium/terbium codoped glass phosphor for application in warm white light-emitting-diode", Proc. SPIE 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII, 90031G (27 February 2014); https://doi.org/10.1117/12.2036372

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available