藍光晶粒 (InGaN) 搭配 (YAG) 黃色螢光粉的方法是目前白光發光二極體 (White-light LED) 發展的主要課題之ㄧ，此材料具有獨特結構及具有螢光效能，其光效能與螢光粉粒徑大小息息相關。本研究是利用不同粒徑大小之釔鋁石榴石 (YAG) : 鈰 (Ce3+) 螢光粉於不同比例調配下自製白光 LED 模組，其螢光粉粒徑分別為7μm、15μm，探討釔鋁石榴石 (YAG) 黃色螢光粉之不同粒徑大小及矽膠不同比例調配下對於 LED 發光特性之影響。
實驗結果顯示，以 SEM 觀察合金微結構變化，發現粒徑7μm之螢光粉容易聚集團塊，所以在使用前必須烘烤降低螢光粉聚集團塊，才不會影響光的均勻性。自製白光 LED 模組完成後，經由LED 標準量測分析，由光激發光譜可發現粒徑15μm黃色螢光粉的發光強度比7μm優越，其粒徑15μm依不同矽膠比例調配下於1:14狀態下，光通量為570 lm，色溫為5851 K，其光效率為57 lm/W；7μm依不同矽膠比例調配下於1:12狀態下，光通量為524 lm，色溫為 4798 K，其光效率為52.4 lm/W

The most popular white light emitting diode is fabricated by the combination of InGaN blue chip and yttrium aluminum garnet phosphor in the market condition. The material has a unique structure and a luminous efficacy. This research is to investigate the effect of particle size of Ce-doped Y3Al5O12(YAG:Ce3+) phosphors on luminescence.
Therefore, the study is the use of different particle size of the yttrium aluminum garnet (YAG) phosphor powder in different proportions arrangements of homemade white LED modules, the phosphors particle size is 7μm, 15μm, the effect of YAG phosphor of different particle size and different silicone proportion of LED light emitting characteristics.
The experimental results show that the phosphors will accumulative easily.Therefore, before baking to reduce the use of phosphors accumulative, it will not affect the uniformity of light.Through the LED standard measurement analysis the white LED was fabricated, We can find out the phosphors particle size 15μm is favored against 7μm for light emitting intensity by LED standard measure. The phosphors particle size 15μm was 1:14 ration by silicone and phosphors, the Luminous flux is 570lm, the Color temperature is 5851K and the luminous efficiency is 57 lm/W. The phosphors particle size 7μm was 1:12 ration by silicone and phosphors, the Luminous flux is 524lm, the Color temperature is 4798K and luminous efficiency is 52.4 lm/W.

[1] 蘇炎坤、林俊良，“白光LED之照明應用”，電機月刊，2005。
[2] 蘇炎坤、林俊良，“Special Apple 光源/照明市場現狀技術預測”，電機月刊，2005。
[3] 鄭有志，“Y2O3 : Eu3+ 螢光粉體之製備及其光性質之研究”，國立成功大學材料科學及工程學系碩士論文，2004。
[4] Y. Zhu, N. Narendran, and Y. Gu, “Investigation of the Optical Properties of YAG:Ce Phosphor”, SPIE Digital Library, pp. 63370S1-63370S8, 2006.
[5] R. Guan, W. Zhao, S. Li, “Preparation and Performance of White LED Packaged YAG Phosphor”, IEEE Xplore, pp. 786-789, 2009.
[6] 羅俊仁，“照明用螢光粉”，電機月刊，第十二卷第五期，pp. 236-243，2002。
[7] 王書任，林仁鈞，“讓LED發光的功臣-螢光粉”，中國製釉股份有限公司，435期，2009。
[8] 吳文隆，李麗玲，“LED照明應用”，pp. 117-123，2005。
[9] K. C. Chen, H. T. Li, C. W. Hsu, C. H. Lin, “LED元件用高效能透明封裝技術趨勢(下)”，工業材料雜誌-光電特刊，247期，2007。
[10] 陳立德，“鹼土鋁酸鹽MXSr1-XAl2O4 : Eu2+ (M : Ca, Ba )螢光粉體之發光、色度特性及應用研究”，國立成功大學材料科學及工程學系碩士論文，2006。
[11] D. Jia, A. Goonewardene, W. Jia, X. Guo, Y. K. Zou, and K. Li, “Sulfide Phosphors for LED White Light Sources”, Materials Research Society, vol. 916, 2006.
[12] H. S. Jang, Y. H. Won, D. Y. Jeon, “Improvement of electroluminescent property of blue LED coated with highly luminescent yellow-emitting phosphors”, Appl. Phys B, pp. 715–720,2009.
[13] 林川發，“發光二極體的照明應用”，科學發展，435期，2009。
[14] 溫佑良，“不同粒徑釔鋁石榴石摻鈰螢光體之合成與性質研究”，國立成功大學材料科學及工程學系碩士論文，2003。
[15] 邱維銘，錢玉樹，陳佳珍，林傑恩，沈彥廷，楊雪晴，王智文，“備白光LED均勻出光螢光薄膜之研究”，技術學刊，vol. 24，pp. 221-226，2009。
[16] 陳柏偉，“硫化鋅螢光粉混合與白光電激發發光之研究”，國立成功大學材料科學及工程學系碩士論文，2004。
[17] 溫佑良，“不同粒徑釔鋁石榴石摻鈰螢光體之合成與性質研究”，國立成功大學材料科學及工程學系碩士論文，2003。
[18] Y. Shimizu, K. Sakano, Y. Noguchi, and T. Moriguchi, “Light Emitting Device Having a Nitride Compound Semiconductor and a Phosphor Containing a Garnet Fluorescent Material”, United States Patent, 1999.
[19] G. Blasse and B. C. Grabmaier, Luminescent Materials (Springer-Verlag, Berlin, 1994).
[20] K. V. heusden, W. L. Warren, C. H. Seager, D. R. Tallant, J. A. Voigt, and B. E. Gnade, “Mechanisms Behind Green Photoluminescence in ZnO Phosphor Powders”, J. Appl. Phys. Vol. 79, pp. 7983-7990, 1996.
[21] L. S. Hung, C. W. Tang, and M. G. Mason, “Enhanced Electron Injection in Organic Electroluminescence Devices Using an Al / Li F Electrode”, Appl. Phys. Lett., vol. 70, pp. 152-154, 1997.
[22] H. J. Lozykowski, W. M. Jadwisienczak, and I. Brown, “Visible Cathodoluminescence of GaN Doped with Dy, Er, and Tm”, Appl. Phys. Lett. 74, pp. 1129-1131, 1999.
[23] E. Dieguez, L. Arizmendi, and J. M. Cabrera, “X-ray Induced Luminescence Photoluminescence and Thermo Luminescence of Bi4Ge3O12”, J. Phys. C: Solid State Phys. 18, pp. 4777-4783, 1985.
[24] J. Guild, “The Colorimeteric Properties of the Spectrum”, Philos. R. Soc. London 230, pp. 149-187, 1931.
[25] W. D. Wright, “A Re-determination of the Trichromatic Coefficients of the Spectral Color”, Trans. Opt. Soc. London 30, pp. 141-164, 1928.
[26] W. D. Wright, “A Re-determination of the Mixture Curves of the Spectrum”, Trans. Opt. Soc. London 31, pp. 201-218, 1930.
[27] 許招庸，“現代照明實務”，全華科技圖書，1998。
[28] “照明的光與色專欄”，天朗照明有限公司，www.skynetlighting.com.tw
[29] 羅梅君，“印刷色度學”，印刷科技（初版），1991。
[30] W. A. Thornoton, “Luminosity and Color-Rendering Capability of White Light,” Journal of the Optical Society of America, pp. 1155, 1971.
[31] K. C. Chen, H. T. Li, C. W. Hsu, C. H. Lin, “LED元件用高效能透明封裝技術趨勢(下)”，工業材料雜誌-光電特刊，vol. 247，2007。
[32] “讓LED發光的功臣螢光粉”，科學發展，vol. 435，2009。
[33] 道康寧網，www.dowcorning.com/
[34] 英特明網，www.intematix.com/