Publication Type : Conference Proceedings
Publisher : Materials Today: Proceedings
Source : Materials Today: Proceedings, Volume 33, p.2082-2085 (2020)
Url : https://www.sciencedirect.com/science/article/pii/S2214785320308348
Keywords : Energy transfer, Fluoride phosphor, Photoluminescence, Rare earth dopants, Upconversion
Campus : Coimbatore
School : School of Engineering
Department : Sciences
Year : 2020
Abstract : Yb3+-Tm3+ codoped KLnF4 (Ln = Y, Yb and Gd) phosphors have been synthesized by a solid-state reaction technique. The results revealed that KYF4 and KYbF4 phosphors crystallize in hexagonal structure and KGdF4 phosphor form in mixed phases. Prepared phosphors are subjected to photoluminescence studies under 980 nm and 356 nm wavelength excitation. The emission colour is examined using the CIE chromaticity diagram for the different host matrices. The results show that the developed phosphors could be useful in the field of lighting and emission colour tuning based applications.
Cite this Research Publication : K. Janani, Dr. S. Ramasubramanian, and Thiyagarajan, P., “Tuning emission colour in Tm3+ doped Yb3+: KLnF4 (Ln = Y, Yb and Gd) upconversion phosphors”, Materials Today: Proceedings, vol. 33. pp. 2082-2085, 2020.