Study of Ce3+, Dy3+ and Eu3+ activated SrSnO3 for white LEDs.

Autor: Jain, Neha, Pandey, Deepak Kumar, Singh, Rajan Kumar, Singh, Jai, Singh, R. A., Shekhawat, Manoj Singh, Bhardwaj, Sudhir, Suthar, Bhuvneshwer
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Zdroj: AIP Conference Proceedings; 2018, Vol. 1953 Issue 1, pN.PAG-N.PAG, 4p
Abstrakt: Herein, Eu3+- Dy3+-Ce3+ tri-doped SrSnO3 have been prepared by conventional sol-gel method. XRD analysis confirmed its orthorhombic phase with Pnma (62) space group symmetry. The morphology of the sample is flake like which has examined by SEM. SrSnO3 consists of several vibrational modes due to Sn-O bond which was analysed by Fourier transform Infrared (FTIR) spectra. Photoluminescence (PL) emission and excitation spectra have been recorded for optical analysis. It consist characteristic emission peaks of Ce3+, Dy3+ and Eu3. The intensity of 590 nm emission increases with increasing Eu3+ concentration and it is maximum for 3 at% Eu3+ co-doped sample. The CIE chromaticity co-ordinates are found near white region so it would be a promising phosphor for white LEDs. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index