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・White LED:Yellow Phosphor Nanoparticles

White LED consists of blue LED and yellow phosphor, and is widely noticed as a key device of lighting and display. Since blue light from blue LED passes through the yellow phosphor, nanosizing yellow phosphor is widely studied to reduce scattering loss of blue light. Our research group prepared yellow phosphor nanoparticles, Y₃Al₅O₂ :Ce, and studied effect of particle size on the optical properties. Not only yellow phosphor, but also various phophor materials are investigated for wide applications.

Related Research Papers：

1. N. Tsuruoka et al. Springer Plus, 5 (2016) 1. Doi:10.1186/s40064-016-1958-2
2. H. Wang et al. Sci. Rep., 6 (2016) 20507. Doi:10.1038/srep20507
3. H. Wang et al. Appl. Phys. Express, 8 (2015) 115001. Doi:10.7567/APEX.8.115001
4. T. Akino et al. Trans. Mat. Res. Soc. Japan, 40 (2015) 287. Doi:10.14723/tmrsj.40.287
5. N. Tsuruoka et al. Proceedings of the 6th International Congress Laser Advanced Materials Processing (LAMP2013), (2013) 13-071.
6. N. Tsuruoka et al. 30th Symposium on Plasma Processing (SPP-30), (2013) 307.
7. N. Takahashi et al. Adv. Mat. Res., 332-334 (2011) 1974. Doi: 10.4028/www.scientific.net/AMR.332-334.1974

• ◎Research Outline
• 【studies in progress】
• ◆Preparation of Nanoparticles:Laser Ablation in Liquid
• ・Bioimaging:Phthalocyanine Nanoparticles
• ・New Optical Devices:Spherical Nanoparticles
• ・Lithium ion Secondary Battery:LiCoO2Nanoparticles
• 【past studies】
• ・Low Invasive Cancer Treatment:Upconversion Nanoparticles
• ・Bioimaging:Long Afterglow Nanoparticles
• ・Next-generation Solar Cells:Semiconductor Nanoparticles
• ・White LED:Yellow Phosphor Nanoparticles
• ・Biocompatibility Improvement:Organic/Inorganic Coating
• ・Improvement of Optical Properties：Increase in Fluorescence Intensity of ZnO Nanoparticles