Crystal structure and Judd-Ofelt properties of a novel color tunable blue-white-red Ba₅Zn₄Y₈O₂₁:Eu³⁺ nanophosphor for near-ultraviolet based WLEDs

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• 作者：Mandeep Dalal^a ; Vinod B. Taxak^a ; Jyoti Dalal^a ; Avni Khatkar^b ; Sangeeta Chahar^a ; Rekha Devi^a ; Satyender P. Khatkar^a ; ^{s_khatkar@rediff.com}
• 关键词：Optical materials ; Chemical synthesis ; X-ray diffraction ; Optical properties ; Crystal structure ; Luminescence
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 March 2017
• 年：2017
• 卷：698
• 期：Complete
• 页码：662-672
• 全文大小：5270 K
• 卷排序：698

文摘

Novel Ba5Zn4Y8O21:Eu3+ nanocrystals have been synthesized via combustion method. The process yields better purity and saves time as well as energy. Judd-Ofelt intensity parameters have been calculated for these nanocrystals. The crystal structure and nano-scaling has been studied using XRD and TEM. These nanophosphors are suitable candidate for futuristic Single-Phased White LEDs.