Achieving an efficient near-infrared luminescence and wide-range spectral tunability in garnet Na2CaHf2Ge3O12:Cr3+ phosphor

Optics Letters, Journal Year: 2024, Volume and Issue: 50(2), P. 634 - 634

Published: Dec. 17, 2024

Near-infrared (NIR) phosphor-converted light-emitting diode (pc-LED) has emerged as the most promising NIR light source, highlighting importance of exploring phosphors with excellent efficiency and sufficient spectral coverage. Herein, a garnet Na 2 CaHf Ge 3 O 12 :Cr 3+ phosphor an internal quantum (IQE) 79.2% been developed, which exhibits relatively long wavelength emission peak at 830 nm full width half maximum (FWHM) 144 nm. Moreover, can be gradually tuned to 903 intensity maintaining over 60% utilizing chemical unit co-substitution strategy. Thus, developed material in this work wide-range tunability, being for multifunctional spectroscopy applications.

Language: Английский

Enhancement of luminescence properties of broadband NIR Cr3+-activated phosphate phosphors through cationic substitution

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский