Study on structural and luminescence properties of Eu-doped CBP phosphors

Journal of polymer science and engineering Pub Date : 2023-11-10 DOI:10.24294/jpse.v6i1.2939

Khishn Kumar Kandiah, Amirul Syafiq Bin Abdul Jaafa, Vengadaesvaran Balakrishnan, Ramesh Subramaniam, Ramesh Kasi, Adarsh Kumar Pandey, Yee Seng Tan, Nasrudin Abdul Rahim, Sanjay J. Dhoble

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Abstract

Europium (Eu) doped Calcium borophosphate (CBP) phosphors were synthesized via solid-state diffusion method. The prepared Europium (Eu) doped Calcium borophosphate (CBP) powder was heated up to 600 ℃ for 6 h for a complete diffusion of ions in the powder system. XRD results showed that the prepared phosphors exhibit a well-crystallized hexagonal phase. The complete diffusion inside the CBP/Eu powder system has been confirmed by the presence of elements such as P, O, Bi, Ca, C, Eu, and B. Apart from that, the synthesized powder system has shown a down-conversion property where the Eu3+ activated ion was excited at 251 nm. Under the excitation of 251 nm, CBP/Eu phosphor showed intense emissions peaking at 591,617, and 693 nm due to the 5D0 → 7F1, 5D0 → 7F2, and 5D0 → 7F4 transition of Eu3+ ions. The obtained results suggest that the CBP/Eu phosphors have the potential for spectral response coating materials to improve the photovoltaic (PV) panel efficiency.

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铕掺杂CBP荧光粉的结构和发光性能研究

采用固态扩散法制备了铕(Eu)掺杂硼磷酸钙(CBP)荧光粉。将制备的铕(Eu)掺杂硼磷酸钙(CBP)粉体加热至600℃，保温6 h，使离子在粉体体系中完全扩散。XRD结果表明，所制备的荧光粉具有良好的六方晶相。P、O、Bi、Ca、C、Eu、b等元素的存在证实了CBP/Eu粉末体系内部的完全扩散。此外，合成的粉末体系表现出下转换的性质，Eu3+活化离子在251 nm处被激发。5D0→7F1、5D0→7F2和5D0→7F4三种Eu3+离子的跃迁，在251 nm激发下，CBP/Eu荧光粉在591,617和693 nm处表现出强烈的发射峰。研究结果表明，CBP/Eu荧光粉具有作为提高光伏板效率的光谱响应涂层材料的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of polymer science and engineering

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