在節能與環保的訴求下，開發高效率、省能源並符合環保需求的「綠色」照明光源，在目前國內外都是迫切且重要的研究課題。與以往使用的日光燈及白熾燈相比LED具有以下之優點：高發光效率、低耗電量、設計彈性佳、反應速度快、環保、可平面封裝等優點。目前市場販售之LED照明燈具大多為黃光螢光粉搭配藍光晶片所製成。此種LED發出的光由黃藍兩種光混合而成，由於缺乏紅光，其光色不飽和，演色性差，就視覺而言，光色冷白，市場接受度不高。為提升發光效率並提升市場接受度，此種LED改進之道，即為加入紅光螢光粉。經過世界各國多個實驗室的研究，近年來，已有被認為相當理想且極具應用潛力的紅光螢光粉被開發出來，這些紅光螢光粉就主體晶格的化學組成而言，皆為氮化物螢光粉。其主體晶格主要可分為兩類：M2Si5N8:An+及MAlSiN3:Bm+，其中M為鹼土金屬(離子)，An+與Bm+為活化劑離子(主要為稀土金屬離子)。雖然氮化物螢光粉是理想且極具應用潛力的LED紅光螢光材料，可是目前氮化物螢光粉之合成皆需在嚴苛的條件下進行，如高溫、高壓、長時間反應，使用空氣、溼氣敏感或昂貴之反應物及複雜之製程等，由於生產不易、產量小、設備及原物料成本高因而價格昂貴，以致氮化物螢光粉之應用進展受限。本論文研究係本實驗室開發氮化物螢光粉合成製程的一項研究，係引用本實驗室過去建立之微波技術合成氮化物螢光粉，在研究當中發現一新的氮化物主體晶格組成，即MnSiN2。吾人並發現，經由Eu2+離子摻入後可得一發橘紅光之螢光粉。在本論文中，吾人探討實驗參數，如反應溫度及反應物組成等對產物之產率及螢光強度之影響。吾人發現藉由調配反應物的組成比例，可合成出不同螢光強度及波長之MnSiN2:Eu2+螢光粉體，在較佳的條件下，此螢光粉的激發波長範圍為320~500nm，若利用370nm之紫外光或460nm之藍光激發此螢光粉可得到一主峰波長位於590nm及發光範圍介於500~700nm 之放射光譜。

In the energy saving and environmental demands, the development of high efficiency, energy saving and environmentally friendly lighting needs at home and in public is urgent and important research topic. Compared with conventional lighting, LED has more advantages such as: high luminous efficiency, low power consumption measurement, flexible design, start fast, environmental protection, flat pack and so on. Currently, LEDs, which are sold in the market, are mostly made by yellow phosphor powder with blue chips. This LED mixed yellow and blue light and will be lack of red light, which make its color is not saturated, the color rendering become poor, and visually, the cold white light color, acceptance is not so high in the market. To enhance the luminous efficiency and enhance market acceptance degree, this LED should be improved by added the red phosphor. After a number of laboratory studies around the world in recent years, it has been considered quite satisfaction and highly application potential red phosphors to be developed. These red phosphor host lattice on the chemical composition is concerned as nitride phosphor. Its main lattice can be divided into two categories: M2Si5N8: An+ and MAlSiN3: Bm +, where M is an alkaline earth metal (ions), An+ and Bm+ as the activator ions (primarily rare earth metal ions). Although the nitride phosphor is ideal and have high potential applications of LED red fluorescent material, but at present the synthesis of nitride phosphors are under harsh conditions which must carry out, such as high temperature, high pressure, long reaction, sensitive air and moisture, expensive reactants, complexity of the process, not easy to produce, product is so less, high cost of equipment which resulting in limited application progress nitride phosphors. In the past, our laboratory had already used microwave for some research. We use this skill to synthesized nitride phosphor and in this research found the new host lattice was MnSiN2. Through the doping of Eu2+ ions, we can obtain orange light phosphor powder. In this thesis, we investigate the experimental parameters such as reaction temperature and reactant composition of impact on product yield and the fluorescence intensity. After deploy the composition ratio of the reactants, we can synthesized different MnSiN2:Eu2+ fluorescence intensity and wavelength phosphor powders. This phosphor excitation wavelength range is 320 ~ 500nm. By using the 370nm or 460nm lambda emission, emission peak at 590nm can be obtained with emission spectrum ranges from the 500 ~ 700nm.

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