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Applied Functional Materials
Frequency: Quarterly Published by lIKll

Open Access
 AFM 2021/12
Vol.1, Iss.1 : 3-8

Synthesis and Characteristics of Sr3La(PO4)3:Eu3+ Phosphor with Luminescence in NIR Biological Window

Su-Hua Yang1* and Wei-Jun Wang1

1Department of Electronic Engineering, National Kaohsiung University of Science and Technology, Taiwan

Received:N/A; Revised:N/A; Accepted:N/A; Published:July 31, 2021
The Sr3La(PO4)3:Eu3+ (SLP:Eu3+) phosphor was prepared with the coprecipitation method, which emited red visible-light along with a near-infrared (NIR) luminescence in the biological window region. The influence of synthesis temperature and Eu3+ doping concentration on the characteristics of the phosphor was discussed. The optimal crystallinity was obtained when the phosphor was doped with 0.7 mol% of Eu3+ and annealed at 1200 °C for 2 h. The particle size was approximately 1 μm. As compared with the SLP:0.01 Eu3+, the photoluminescence intensity of the SLP:0.07 Eu3+ increased by 4.95-fold at wavelength of 615 nm and 3.97- fold at 705 nm. The red SLP:Eu3+ phosphor with a high NIR emission is a potential candidate material for bio-image and bio-sensor applications.

Keywords:  Phosphor, Near-infrared luminescence, Biological window, Coprecipitation

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Citation:Yang, S.H.; Wang, W.J.Synthesis and Characteristics of Sr3La(PO4)3:Eu3+ Phosphor with Luminescence in NIR Biological Window. Applied Functional Materials 2021, 1, 3-8.

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Copyright: © 2021  The Author(s). Published with license by IIKII, Singapore. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.