Using Sr[Mg3SiN4]Eu2+ phosphor for enhancing color uniformity and luminous efficacy of the 7000 K IPP-WLEDs

Van-Duc Phan, Phu Tran Tin, Minh Tran, Tran Thanh Trang


As a novel class of inorganic phosphors, oxynitride and nitride luminescent materials have received considerable attention because of their potential applications in solid-state lightings and displays. In this paper, we built the simulation model of the 7000 K in-cup phosphor packaging white LEDs (IPP-WLEDs) by using the Light Tools software. After that, the effect of the Sr[Mg3SiN4]Eu2+ phosphor particle’s size on the lighting performance in term of CCT Deviation (D-CCT), Color Rendering Index (CRI), Color Quality Scale (CQS), and Lumen Output (LO) is analyzed and investigated. In addition, the scattering processes in the phosphor layers of the 7000 K IPP_WLEDs is derived using Mat Lab software. From the research results, we can state that the phosphor size significantly effects on the lighting performance of the 7000K IPP_WLEDs. It can be seen that Sr[Mg3SiN4]Eu2+ phosphor can be considered as a novel solution for improving the lighting performance of the WLEDs in the near future.


IPP-WLEDs; Sr[Mg3SiN4]Eu2+ phosphor; CRI; CQS; Mie Theory.

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LED Packaging for Lighting Applications. 2011. “Design of LED Packaging Applications,” 215–315. doi:10.1002/9780470827857.ch6.

Gibney, Elizabeth. 2014. “Nobel for Blue LED That Revolutionized Lighting.” Nature 514 (7521): 152–153. doi:10.1038/514152a.

Liu, Zong-Yuan, Sheng Liu, Kai Wang, and Xiao-Bing Luo. 2010. “Studies on Optical Consistency of White LEDs Affected by Phosphor Thickness and Concentration Using Optical Simulation.” IEEE Transactions on Components and Packaging Technologies 33 (4): 680–687. doi:10.1109/tcapt.2010.2044576.

Luo, X., & Hu, R. (2014). Chip packaging: Encapsulation of nitride LEDs. Nitride Semiconductor Light-Emitting Diodes (LEDs), 441-481. doi:10.1533/9780857099303.2.441

Luo, Xiaobing, Run Hu, Sheng Liu, and Kai Wang. 2016. “Heat and Fluid Flow in High-Power LED Packaging and Applications.” Progress in Energy and Combustion Science 56: 1–32. doi:10.1016/j.pecs.2016.05.003.

Seong, Tae-Yeon. 2013. III-Nitride Based Light Emitting Diodes and Applications. Dordrecht: Springer Science & Business Media.

Xie, Rong-Jun, and Naoto Hirosaki. 2007. “Silicon-Based Oxynitride and Nitride Phosphors for White LEDs—A Review”. Science and Technology of Advanced Materials 8 (7-8), 588-600.

Shuai, Y., Y. He, N. T. Tran, F. G. Shi, 2011, Angular CCT uniformity of phosphor-converted white LEDs: effects of phosphor materials and packaging structures, IEEE Photonics Technology Letters 23(3): 137–139. doi: 10.1109/LPT.2010.2092759.

Fu, Xing, Huai Zheng, Sheng Liu, and Xiaobing Luo. 2012. “Effects of Packaging Structure on Optical Performances of Phosphor Converted Light Emitting Diodes.” Frontiers of Optoelectronics 5 (2): 153–156. doi:10.1007/s12200-012-0254-1.

Yu, Renyong, Shangzhong Jin, Songyuan Cen, and Pei Liang. 2010. “Effect of the Phosphor Geometry on the Luminous Flux of Phosphor-Converted Light-Emitting Diodes.” IEEE Photonics Technology Letters 22 (23): 1765–1767. doi:10.1109/lpt.2010.2085080.

Joo, Byung-Yun, and Jae-Hyeon Ko. 2013. “Analysis of Color Uniformity of White LED Lens Packages for Direct-Lit LCD Backlight Applications”. Journal of the Optical Society of Korea17 (6), 506-12.

Sun, Wen-Shing, Chuen-Lin Tien, Jui-Wen Pan, Tsung-Hsun Yang, Chih-Hsuan Tsuei, and Yi-Han Huang. 2013. “Simulation and Comparison of the Lighting Efficiency for Household Illumination With LEDs and Fluorescent Lamps”. Journal of the Optical Society of Korea 17 (5), 376-83.

Oh, Ji Hye, Yun Jae Eo, Su Ji Yang, and Young Rag Do. 2015. “High-Color-Quality Multipackage Phosphor-Converted LEDs for Yellow Photolithography Room Lamp”. IEEE Photonics J. 7 (2), 1-8.

Chen, Yu, Minhao Zhang, and Guoxing He. 2013. “Comments on ‘Maximum White Luminous Efficacy of Radiation Versus Color Rendering Index and Color Temperature: Exact Results and a Useful Analytic Expression’”. J. Display Technol. 9 (10), 859-60.

Schratz, Michael, Christine Gupta, TJ Struhs, and Kara Gray. 2013. “Reducing Energy and Maintenance Costs While Improving Light Quality and Reliability With Led Lighting Technology”, January.

Quang Minh, Tran Hoang, Nguyen Huu Khanh Nhan, Nguyen Doan Quoc Anh, and Hsiao-Yi Lee. 2017. “Red-Emitting α-SrO·3B2O3:Sm2+ Phosphor: An Innovative Application for Increasing Color Quality and Luminous Flux of Remote Phosphor White LEDs”. Journal of the Chinese Institute of Engineers 40 (4), 313-17.

Quoc Anh, Nguyen Doan, Hsiao-Yi Lee, Tran Thanh Phuong, Nguyen Huu Khanh Nhan, Tran Hoang Quang Minh, and Truong Huu Ly. 2017. “Y2O3:Eu3+ Phosphor: A Novel Solution for an Increase in Color Rendering Index of Multi-Chip White LED Packages”. Journal of the Chinese Institute of Engineers 40 (3), 228-34.

Minh, Tran Hoang Quang, Nguyen Huu Khanh Nhan, Nguyen Doan Quoc Anh, and Hsiao-Yi Lee. 2017. “Novel Lighting Properties of White LEDs With Two-Layered Remote Phosphor Package Using Red-Emitting α-SrO·3B2O3:Sm2+ Phosphor” 35 (3), 618-25.

O. Tapaninen, 2016, Optical and thermal simulation chain for LED package, 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), Montpellier. doi:10.1109/EuroSimE.2016.7463349.

Mishchenko, Michael I., Larry D. Travis, and Andrew A. Lacis. 2002. Scattering, Absorption, and Emission of Light by Small Particles. Cambridge: Cambridge University Press.

Zhong, Jiajian, Mingyuan Xie, Zhigui Ou, Rui Zhang, Min Huang, and Fuli Zhao. 2011. “Mie Theory Simulation of the Effect on Light Extraction by 2-D Nanostructure Fabrication.” 2011 Symposium on Photonics and Optoelectronics (SOPO). doi:10.1109/sopo.2011.5780566.

Jonasz, Miroslaw, and Georges R. Fournier. 2007. “General Features of Scattering of Light by Particles in Water.” Light Scattering by Particles in Water, 87–143. doi:10.1016/b978-012388751-1/50003-x.

K. Pan, et al., “Study on Reliability and Lifetime Prediction of High Power LEDs,” Indonesian Journal of Electrical Engineering and Computer Science, vol/issue: 12

Peng H. Y., et al., “Red (SrCa)AlSiN3: Eu2+ Nitride Phosphor Particle Size of Phosphor Converted Warm White LEDs,” Indonesian Journal of Electrical Engineering and Computer Science, vol/issue: 12(7), 2014.

Tran Tin, Phu, Anh Vu Le, Minh Tran, Nguyen Huu Khanh Nhan, and Tran Thanh Trang. n.d. “Improving CCT-D and LO of the 6600K ICP-WLEDs by K2SiF6:Mn4+ Phosphor”. IJPEDS 10 (2), 1059. Accessed July 12, 2019.

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