本研究於還原氣氛(5%H2+95%N2)下以固態法合成鋁酸鍶鈣螢光粉體，旨在檢討下列實驗變因對合成粉體發光性質之影響：(1)硼酸之添加量(0~36.6 mol%)、(2)Eu2+離子之添加量(0~5, 7, 9 mol%)、(3)煅燒溫度(1000~1400℃)、(4)持溫時間(2, 5, 8 h)、(5)鍶和鈣離子之莫耳比(40/60, 45/55, 50/50, 55/45, and 60/40)。藉上述諸多因素之調變以提高粉體之發光強度和效率，並獲得具不同色度座標之白光螢光粉。
合成的鋁酸鍶鈣螢光粉之最終相是由單斜CaAl2O4及六方SrAl2O4所組成。當Eu2+進入此兩種主體晶格內部，便會在PL圖譜形成藍光和綠光發射帶。此外，由於此兩發射帶之強度會隨Eu2+摻雜濃度變化而呈現消長現象，故可在此螢光粉系統之最終相仍維持上述兩組成相之鍶、鈣原子比例範圍內，藉同時調變鍶、鈣原子比例與Eu2+離子之摻雜濃度，獲得具不同色度座標之白光。所製備之十五組樣品中，以Sr / Ca = 40 / 60, Eu2+ = 3 mol%、Sr / Ca = 45 / 55, Eu2+ = 2 and 3 mol%、Sr / Ca = 50 / 50, Eu2+ = 2 mol%、Sr / Ca = 55 / 45, Eu2+ = 1 mol% 及Sr / Ca = 60 / 40, Eu2+ = 1 mol% 共六組配比之粉體，最為接近白光。
在含不同硼酸添加量於1300℃煅燒之0.5SrAl2O4-0.5CaAl2O4：Eu2+(1 mol%), B3+螢光粉系統中，以25.6 mol%添加量之樣品具最大之PL發射強度；7.3 mol%添加量之樣品具最佳演色性。在不同煅燒溫度下，0.5SrAl2O4-0.5CaAl2O4：Eu2+(1 and 2 mol%), B3+螢光粉之PL發射強度在1000~1300℃範圍內會隨溫度提升而增強，然而當溫度繼續提升至1400℃時，其強度則會下降。在1300℃不同持溫時間之系統中，PL發射強度有隨持溫時間之增長而增強之趨勢，其中以Eu2+攙雜濃度為2 mol%，持溫8 h之樣品具最大積分強度；Eu2+攙雜濃度為2 mol%，持溫5 h之樣品具最佳之演色性。

Single white-light strontium calcium aluminate phosphors were synthesized by solid state reaction in this study. Some factors which may influence the luminescence of phosphors were discussed : (a) Amount of boric acid (0 ~ 36.6 mol%), (b) Amount of Eu2+ ions (0 ~ 5, 7, 9 mol%), (c) clacination temperature, (d) Soaking time, and (d) molar ratios between strontium and calcium atoms.
Strontium-calcium aluminate phosphors were composed of monoclinic CaAl2O4 and hexagonal SrAl2O4. When Eu2+ ions doped into this two host lattices and affected by their crystal fields, two emission bands emitted blue and green light were formed in PL spectra. The intensity of blue emission band decreased as amounts of Eu2+ ions increased, whereas, green emission band increased oppositely. White light phosphors with various chromaticity coordinates according to the concept of rise and fall of two emission bands were obtained by the control of molar ratios of Sr / Ca and amount of Eu2+ ions simultaneously.
For the strontium-calcium aluminate phosphors synthesized at 1300℃ for 5h and added with various amount of boric acid, the phosphor with addition of 25.6 mol% boric acid showed the maximum PL emission intensity, and the phosphor with 7.3 mol% addition of boric acid showed the best value of color rendering index. The PL emission intensity of strontium-calcium aluminate phosphors increased when the calcination temperature increased from 1000 to 1300℃, however, the intensity decreased when temperature increased to 1400℃. The 0.5SrAl2O4-0.5CaAl2O4：Eu2+(2 mol%), B3+ phosphors synthesized at 1300℃ for 8 h showed the maximum integrated intensity ; the 0.5SrAl2O4-0.5CaAl2O4：Eu2+(2 mol%), B3+ synthesized at 1300℃ for 5 h showed the best value of color rendering index 2 mol% addition of Eu2+ ions and soaking time of 5h.

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