Investigation On Facile Synthesis Of YAG:Ce Nanoceramic Powder Prepared With Microwave Solution Combustion And Application In White Light Emission

Lau, Khai Shenn and Hassan, Zainuriah and Lim, Way Foong and Hock, Jin Quah (2020) Investigation On Facile Synthesis Of YAG:Ce Nanoceramic Powder Prepared With Microwave Solution Combustion And Application In White Light Emission. In: 5th Meeting of Malaysia Nitrides Research Group (MNRG 2020), 1-2 December 2020.

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Abstract

Cerium doped yttrium aluminum garnet (YAG:Ce) phosphor was widely used as color converter in white light emitting diode (wLED). Such phosphor was commonly synthesized with high temperature solid-state reaction. However, powder derived from this method exhibited irregular and highly agglomerate particles. A repeated milling process to break the particles will cause additional defects formation, causing the optical properties to deteriorate. In this work, YAG doped with 0.1 mol% of cerium nanoceramic powder has been synthesized with facile mixed-fuel microwave solution combustion synthesis (MSCS). The as-synthesized powder was subjected to a post-annealing treatment to enhance the structural and optical properties. HR-XRD revealed an increased in crystallinity as well as crystallite size for the annealed powder. Moreover, FESEM analysis showed spherical-like nanoparticles morphology. For optical properties, broad yellow emission centered at 534 nm was demonstrated with PL measurement. Finally, the YAG:Ce phosphors was fabricated into wLED and characterized with electroluminescence (EL) measurement to determine the color properties (CIE, CCT and CRI).

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > QC Physics > QC1-999 Physics
Divisions: Institut Penyelidikan dan Teknologi Nano Optoelektronik (Institute of Nano Optoelectronics Research and Technology (INOR)) > Conference or Workshop Item
Depositing User: Mr Aizat Asmawi Abdul Rahim
Date Deposited: 05 May 2021 01:33
Last Modified: 05 May 2021 01:33
URI: http://eprints.usm.my/id/eprint/49105

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