Jump to main content
Jump to site search


Enhanced red luminescence in CaAl12O19:Mn4+via doping Ga3+ for plant growth lighting

Author affiliations

Abstract

A series of solid solution CaAl12−xGaxO19:Mn4+ phosphors were prepared via a high-temperature solid-state reaction. Their structural properties were characterized by X-ray diffraction (XRD) and the luminescence was investigated via photoluminescence spectra. The obtained CaAl12−xGaxO19:Mn4+ phosphor has a strong broad excitation band in the range of 250–550 nm, which can be easily excited by the UV, NUV and blue light, and a broad emission band centered at 655 nm between 600 nm and 800 nm due to the 2Eg4A2g transition of the Mn4+ ion. The PL spectra indicate that the intensity of CaAl12O19:Mn4+ can be enhanced when the Ga3+ concentration equals 1. Furthermore, the element mapping, optical properties, thermal stability, fluorescence lifetime and CIE chromaticity reveal that the CaAl12−xGaxO19:Mn4+ phosphors can be considered as potential candidates in indoor plant cultivation.

Graphical abstract: Enhanced red luminescence in CaAl12O19:Mn4+ via doping Ga3+ for plant growth lighting

Back to tab navigation

Article information


Submitted
18 Oct 2019
Accepted
06 Jan 2020
First published
07 Jan 2020

Dalton Trans., 2020, Advance Article
Article type
Paper

Enhanced red luminescence in CaAl12O19:Mn4+ via doping Ga3+ for plant growth lighting

L. Kong, Y. Liu, L. Dong, L. Zhang, L. Qiao, W. Wang and H. You, Dalton Trans., 2020, Advance Article , DOI: 10.1039/C9DT04086B

Social activity

Search articles by author

Spotlight

Advertisements