期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 3, 期 24, 页码 6148-6152出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5tc00893j
关键词
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资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2013R1A1 A2059280]
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning (MSIP) of Korea [NRF-2014R1A2A2A01007722]
- Business for Cooperative R&D between Industry, Academy, and Research Institute funded Korea Small and Medium Business Administration [C0217334]
Here, we report a phosphor ceramic plate (PCP) constructed using Y3Al5O12: Ce3+ (YAG:Ce) nanoparticles (NPs) with a uniformly spherical size distribution for high-power light emitting diode (LED) applications. YAG:Ce NPs with diameters of 600 nm were synthesized using the forced hydrolysis method, and the typical excitation and emission of the PCP constructed using YAG:Ce NPs were observed on blue light emitting InGaN chips, as a conversion process for the generation of white LEDs with high luminous flux and thermal stability. In addition, for the improvement of the PCP characteristics, a novel design using graphene-embedded red phosphor (GRP) layer was utilized. The GRP-coated PCP displayed a higher CRI value of 82 and warm white light with a correlated colour temperature (CCT) of 3952 K compared to the general PCP. This type of PCP is expected to be an outstanding candidate for the production of luminescent materials in various fields of optoelectronics.
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