本研究係將硫化鋅藍綠光與橘光電激發光螢光粉加以混合，探討混合方法、不同的混合比例等因素對其發光特性的影響。同時，本研究係以固態合成法製備硫化鋅鎘摻銅螢光粉體，探討硫化鋅與硫化鎘不同混合比例及銅摻雜量對其發光特性的影響。實驗結果的分析，利用XRD進行晶體結構之鑑定；並利用光激發光( PL )、電激發光( EL )及色度座標( CIE )進行發光特性之研究。

　　研究結果顯示，螢光粉混合係以螢光粉置入篦麻油( Castor oil )溼式攪拌混合的電激發光強度最強。此外，當外加交流電壓、頻率為300V、1000Hz，藍綠光和橘光螢光粉混合重量比為1：5時，其色度座標值為(0.322, 0.345)，其已經座落在白光區域中，但有偏綠的現象。另外，由實驗結果可以得到混光方程式及修正參數，來計算當不同比例的藍綠光及橘光螢光粉混合時其色度座標值。

　　為了達演色性佳之白光，本研究嘗試合成硫化鋅鎘摻銅之紅色電激發光螢光粉。研究結果顯示，當ZnxCd1-xS：Cu, Cl中的x＝0.4及0.3時，其電激發光波長位於約為630nm及665nm的紅光區域，且x=0.4，銅摻雜量2600ppm時，可以得到最佳電激發光強度。

　　最後本研究將紅光電激發光螢光粉加入白光混光中。由色度座標值結果顯示其結果仍呈現白光偏綠的現象。

　　This research is to investigate the effect of mixing methods and parameters on luminescent properties of blending the blue-green and orange of ZnS phosphors. This study is also to examine the optical performance of ZnxCd1-xS：Cu, Cl synthesized by solid state with various x values as well as with different copper concentration. The X-ray diffraction was utilized to characterize the crystal structure of prepared ZnCdS. The optical properties were measured, including Photo- luminescence ( PL ) spectroscopy, Electro- luminescence ( EL ) spectroscopy, and Chromaticity coordinates(CIE).

　　Blending of the blue-green and orange phosphors in the weight ratio of 1：5 . The high intensity of electroluminescence is achieved by suspending mixed phosphors in castor oil. It is found that the result in chromaticity coordinate (CIE) values of (0.322, 0.345) under 300V 1000Hz, which is located in white color region. However, the CIE values mentioned above was shifted a little to the green color. Furthermore, an equation and a correction parameter was generated from the laws of color addition and experimental results to evaluate the CIE values of mixing phosphors regarding to the weight ratios and the brightness difference of the blue-green and orange phosphors.

　　In order to improve shift the CIE value to white light, the red electroluminescent phosphor was synthesized by alloying of ZnS and CdS. The results show that emission peak was located at 630nm and 665nm in red region, as x is equal to 0.4 and 0.3, respectively. And the best electroluminescence intensity was obtained by alloying 60 mole% of CdS in ZnS and doping 2600ppm copper.

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