【正文】 ..........................................................................................16 實驗設(shè)計思路及目標 .......................................................................................................16 實驗原料 ...........................................................................................................................17 實驗儀器和設(shè)備 ...............................................................................................................17本實驗中選用的實驗儀器和設(shè)備見表 22 ...........................................................................17 工藝流程 ...........................................................................................................................18 實驗步驟 ...........................................................................................................................19 樣品性能的測試 ...............................................................................................................20 XRD 分析 ...............................................................................................................20 余輝性能 ................................................................................................................20 熒光光譜 ................................................................................................................20 差熱分析 .................................................................................................................20第三章 Sr3Al2O6 基質(zhì)制備工藝的研究 .........................................................................................22 Sr3Al2O6 溶膠凝膠的制備工藝 ........................................................................................22 溶膠凝膠的反應(yīng)過程 ............................................................................................22 溶液初始濃度的確定 ............................................................................................23 反應(yīng)溫度的確定 ....................................................................................................23 pH 值的確定 ...........................................................................................................23 絡(luò)合劑的確定 ........................................................................................................25 硝酸用量的確定 .....................................................................................................25太原理工大學(xué)碩士研究生學(xué)位論文2 Sr3Al2O6 物相的結(jié)晶過程 ................................................................................................25 實驗技術(shù)方案 ........................................................................................................27 熱重差熱曲線分析 ..............................................................................................27 XRD 分析 ...............................................................................................................27 檸檬酸用量對 Sr3Al2O6 基質(zhì)制備的影響 ......................................................................29 實驗技術(shù)方案 .........................................................................................................29 檸檬酸用量對 Sr3Al2O6 物相結(jié)晶過程的影響 ....................................................29第四章 Sr3Al2O6:Eu2+,Dy3+紅色長余輝發(fā)光材料性能的研究 ....................................................32 Sr3Al2O6:Eu2+,Dy3+紅色長余輝發(fā)光機理 ........................................................................32 實驗技術(shù)方案 ........................................................................................................32 XRD 分析 ...............................................................................................................32 發(fā)光機理探討 ........................................................................................................33 Dy 摻雜量對 :+,yDy3+發(fā)光材料的影響 ........................................37 實驗技術(shù)方案 ........................................................................................................37 Dy 摻雜量對發(fā)射光譜的影響 ...............................................................................38 Dy 摻雜量對初始亮度和余輝時間的影響 ...........................................................39 Eu 摻雜量對 :xEu2+,+發(fā)光材料的影響 .........................................40 實驗技術(shù)方案 ........................................................................................................40 Eu 摻雜量對物相的影響 .......................................................................................41 Eu 摻雜量對發(fā)射光譜的影響 ...............................................................................41 Eu 摻雜量對余輝時間和初始亮度的影響 ...........................................................41 煅燒溫度對 Sr3Al2O6:Eu2+,Dy3+發(fā)光材料的影響 ..........................................................43 實驗技術(shù)方案 ........................................................................................................43 煅燒溫度對物相的影響 ........................................................................................43 煅燒溫度對發(fā)光性能的影響 ................................................................................44 升溫速率對 Sr3Al2O6:Eu2+,Dy3+發(fā)光材料的影響 ..........................................................47 實驗技術(shù)方案 ........................................................................................................47 升溫速率對物相的影響 ........................................................................................47 升溫速率發(fā)射光譜的影響 ....................................................................................48 升溫速率初始亮度和余輝時間的影響 ................................................................49 H3BO3 摻雜量對 Sr3Al2O6:Eu2+,Dy3+發(fā)光材料的影響 ...................................................50 實驗技術(shù)方案 ........................................................................................................50 H3BO3 摻雜量對物相的影響 .................................................................................51 H3BO3 摻雜量對發(fā)光性能的影響 .........................................................................51第五章 Sr3Al2O6:Eu2+,Pr3+紅色長余輝發(fā)光性能的研究 .............................................................54 實驗技術(shù)方案 .....................................