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| 折扣與優(yōu)惠：團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:采用溶膠-凝膠法制備了摻錳硫化鋅粉末，并通過熒光分光光度計對其光致發(fā)光譜進行了檢測，結(jié)果表明：制備硫化鋅發(fā)光材料的最佳溫度溫度是80℃左右。錳離子的加入會削弱材料的發(fā)光強度，隨著錳離子濃度的增大削弱程度越大，但溫度高于400℃則相反。分別用波長為210nm、380nm、430nm、460nm的激發(fā)光激發(fā)樣品，210nm的激發(fā)光激發(fā)時樣品的發(fā)光強度最強，在330nm的激發(fā)光激發(fā)時能較清楚地看出其它較弱的發(fā)光峰位。 關(guān)鍵詞：溶膠-凝膠法；硫化鋅；錳離子；光致發(fā)光
Abstract:With Sol-Gel techniques, ZnS:Mn powder were prepared and photoluminescence spectra of fluorescence spectrophotometer were detected. The result shows that the optimum temperature of preparation temperature is about 80 degrees. The luminescence intensity of material is weakened while adding Mn. The higher the concentration of Mn, The weaker the intensity. However it is totally opposite when the temperature is higher than 400 degrees. The exciting light of 210nm,380nm, 430nm,460nm are used to irradiate the sample. We get the strongest luminous intensity of sample in the wavelength of 210nm. In the wavelength of 330nm, we can see the other weaker luminescent peak. Keywords:Sol-gel;ZnS; Manganese ion;Photoluminescence |
