Journal
JOURNAL OF LUMINESCENCE
Volume 209, Issue -, Pages 1-7Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2019.01.014
Keywords
Perovskites; Phosphors; Mn-4(+) ion; Deep red emission; Plant growth LEDs
Categories
Funding
- National Natural Science Foundation of China [51862015, 11464021]
- Foundation of Jiang'xi Educational Committee [GJJ180564]
- National Undergraduate Training Program for Innovation and Entrepreneurship of China [201810419019]
Ask authors/readers for more resources
In this work, Ba2LaSbO6:Mn4+ phosphors are prepared successfully in air by solid-state reaction method, which is confirmed by the X-ray powder diffractions patterns, decay curves, the time-resolved emission spectra and luminescence properties. Monitored at 678 nm, the excitation spectrum of Ba2LaSbO6:Mn4+ phosphor is observed in the range of 250-575 nm. Under the excitation of 380 nm, Ba2LaSbO6:Mn4+ phosphor exhibits strong deep-red emission in the range of 625-740 nm with emission peak at 678 nm due to the E-2 -> (4)A(2) transition of Mn4+ ion. The emission spectrum well matchs with the absorption spectrum of plants in the range of 625-740 nm. The temperature-dependent emission spectra illustrate the thermal stability of Ba2LaSbO6:Mn4+ phosphor and the thermal quenching mechanism is explained by the configuration coordinate of Mn4+ ion. The luminous mechanism of Ba2LaSbO6:Mn4+ phosphor is explained by the Tanabe-Sugano energy level diagram of Mn4+ ion. The experimental results show that the Ba2LaSbO6:Mn4+ deep-red-emitting phosphor would have potential application in plant growth LEDs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available