Issue 24, 2017

Tunable luminescence and energy transfer properties of Bi3+ and Mn4+ co-doped Ca14Al10Zn6O35 phosphors for agricultural applications

Abstract

A series of Bi3+ and Mn4+ co-activated Ca14Al10Zn6O35 (CAZO) phosphors were synthesized using a solid state sintering method. The phase and morphologies of the CAZO based phosphors were confirmed using powder X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. A novel phosphor CAZO:Bi3+ emits bright blue light under near-ultraviolet (NUV) excitation and its luminescence properties were characterized by diffuse reflectance and photoluminescence spectra. Tunable luminescence from blue to red was observed in Bi3+ and Mn4+ co-activated CAZO, which is attributed to energy transfer from Bi3+ to Mn4+. The energy transfer mechanism has been characterized by the decay times of the Bi3+ emission, which changes with the concentration of Mn4+. The energy transfer efficiency from Bi3+ to Mn4+ increases linearly with increasing the concentration of Mn4+. The as-obtained phosphor has a potential application in agricultural industry because the blue and red lights excited by NUV light emitting diodes (LEDs) are helpful for the improvement of photosynthesis.

Graphical abstract: Tunable luminescence and energy transfer properties of Bi3+ and Mn4+ co-doped Ca14Al10Zn6O35 phosphors for agricultural applications

Supplementary files

Article information

Article type
Paper
Submitted
31 1 2017
Accepted
23 2 2017
First published
06 3 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 14868-14875

Tunable luminescence and energy transfer properties of Bi3+ and Mn4+ co-doped Ca14Al10Zn6O35 phosphors for agricultural applications

L. Li, Y. Pan, Z. Chen, S. Huang and M. Wu, RSC Adv., 2017, 7, 14868 DOI: 10.1039/C7RA01285C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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