國立虎尾科技大學 |

以固態反應法製備SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺螢光粉之光致發光特性研究 = = Synthesis and Photoluminescence Properties of SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method /

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	以固態反應法製備SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺螢光粉之光致發光特性研究 =/ 游承鑫.
其他題名:	Synthesis and Photoluminescence Properties of SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method /
其他題名:	Synthesis and Photoluminescence Properties of SrY₂O₄ :
作者:	游承鑫
出版者:	雲林縣 :國立虎尾科技大學 , : 民113.07.,
面頁冊數:	[13], 117葉 :圖, 表 ; : 30公分.;
附註:	指導教授: 張益新.
標題:	Zn2+ ions. -
電子資源:	電子資源

以固態反應法製備SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺螢光粉之光致發光特性研究 = = Synthesis and Photoluminescence Properties of SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method /
游承鑫

以固態反應法製備SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺螢光粉之光致發光特性研究 =Synthesis and Photoluminescence Properties of SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method /Synthesis and Photoluminescence Properties of SrY₂O₄ :Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method.游承鑫. - 初版. - 雲林縣 :國立虎尾科技大學 ,民113.07. - [13], 117葉 :圖, 表 ;30公分.

指導教授: 張益新.

碩士論文--國立虎尾科技大學電子工程系碩士班.

含參考書目.

本研究以固態反應法(solid-state reaction) 在煆燒溫度1300℃持溫5小時下製備可調式發光之SrY2O4:Dy3+螢光粉，探討主體材料SrY2O4以Dy3+ 稀土離子作為活化劑，通過共摻La3+離子及過渡金屬Zn2+離子，分析摻雜濃度改變及不同激發波長，對螢光粉晶體結構、表面型態與發光特性之影響。系列一以SrY2O4作為螢光粉主體，摻雜不同濃度Dy3+離子，由XRD分析結果顯示，均為正交晶系(orthorhombic) 之SrY2O4結構，隨著Dy3+離子摻雜濃度的增加並無發現其他二次相的產生。SEM分析顯示，Dy3+離子濃度增加，對於顆粒尺寸沒有太大的變化，由於高溫煆燒導致有顆粒團聚的現象。在233 nm激發下，放射光譜圖中可觀察到三處Dy3+離子典型特徵放射峰呈現，分別對應4F9/2→6H15/2磁偶極躍遷、4F9/2→6H13/2電偶極躍遷及4F9/2→6H11/2電子躍遷。當Dy3+離子摻雜濃度為0.5 mol%，會有最強的放射強度。CIE色度座標顯示隨著Dy3+離子摻雜，從藍光區位移至白光區。而以353 nm激發下，放射光譜構成與233 nm激發下相同，當Dy3+離子摻雜濃度為1 mol%，會有最強的放射強度，通過對反對稱指數的觀察，對比於233 nm激發下變化較為平緩，顯示佔據發光主導位在黃光區的4F9/2→6H13/2電偶極躍遷變化較小，可看出CIE色度座標位移範圍小，整體依舊座落在白光區。而系列二則在煆燒溫度1300 ℃持溫5小時下，固定Dy3+離子濃度為1 mol%，通過共摻La3+離子取代Y3+離子晶格位置以製備Sr(Y0.99-xLaxDy0.01)2O4螢光粉。由XRD分析顯示，隨著La3+離子摻雜濃度提升，從正交晶系SrY2O4相逐漸轉變成正交晶系SrLa2O4相，當La3+離子完全取代Y3+離子，沒有觀察到二次相產生。SEM結果顯示La3+ 離子濃度增加，顆粒尺寸有變大的趨勢，晶體表面亦產生變化，但仍呈現不規則形狀且因高溫導致顆粒團聚現象。在250 nm激發下，La3+離子濃度為30 mol%時有最強的放射強度，CIE色度座標皆位於白光區，而353 nm激發下，La3+離子濃度為90 mol%時有最強的放射強度，隨著La3+離子濃度遞增，CIE色度座標由白光區位移至黃光區。系列三則是摻雜不同過渡金屬Zn2+離子濃度，於煆燒溫度1300℃持溫5小時條件下製備(Sr1-yZny)(Y0.99Dy0.01)2O4螢光粉。從XRD結果顯示，Zn2+離子取代Sr2+離子位置，並無二次相產生，亦均為正交晶系SrY2O4之結構。根據半高寬值可知，Zn2+摻入其值有下降，說明結晶性有變好；SEM分析結果顯示，由於高溫整體依舊呈現團聚現象，在激發波長233 nm激發下，Zn2+離子濃度為5 mol%時有最強的放射強度，CIE色度座標皆位於白光區，當激發波長353 nm激發下，整體發光強度皆有提升，說明結晶性改變對發光強度有所影響，CIE色度座標顯示皆位於白光區無明顯變化。.

(平裝)Subjects--Topical Terms:

1451662
Zn2+ ions.

以固態反應法製備SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺螢光粉之光致發光特性研究 = = Synthesis and Photoluminescence Properties of SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method /
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100 1 $a 游承鑫 $3 1448803
245 1 0 $a 以固態反應法製備SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺螢光粉之光致發光特性研究 = $b Synthesis and Photoluminescence Properties of SrY₂O₄:Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method / $c 游承鑫.
246 1 1 $a Synthesis and Photoluminescence Properties of SrY₂O₄ : $b Dy³⁺,La³⁺,Zn²⁺ Phosphors prepared by solid-state method.
250 $a 初版.
260 # $a 雲林縣 : $b 國立虎尾科技大學 , $c 民113.07.
300 $a [13], 117葉 : $b 圖, 表 ; $c 30公分.
500 $a 指導教授: 張益新.
500 $a 學年度: 112.
502 $a 碩士論文--國立虎尾科技大學電子工程系碩士班.
504 $a 含參考書目.
520 3 $a 本研究以固態反應法(solid-state reaction) 在煆燒溫度1300℃持溫5小時下製備可調式發光之SrY2O4:Dy3+螢光粉，探討主體材料SrY2O4以Dy3+ 稀土離子作為活化劑，通過共摻La3+離子及過渡金屬Zn2+離子，分析摻雜濃度改變及不同激發波長，對螢光粉晶體結構、表面型態與發光特性之影響。系列一以SrY2O4作為螢光粉主體，摻雜不同濃度Dy3+離子，由XRD分析結果顯示，均為正交晶系(orthorhombic) 之SrY2O4結構，隨著Dy3+離子摻雜濃度的增加並無發現其他二次相的產生。SEM分析顯示，Dy3+離子濃度增加，對於顆粒尺寸沒有太大的變化，由於高溫煆燒導致有顆粒團聚的現象。在233 nm激發下，放射光譜圖中可觀察到三處Dy3+離子典型特徵放射峰呈現，分別對應4F9/2→6H15/2磁偶極躍遷、4F9/2→6H13/2電偶極躍遷及4F9/2→6H11/2電子躍遷。當Dy3+離子摻雜濃度為0.5 mol%，會有最強的放射強度。CIE色度座標顯示隨著Dy3+離子摻雜，從藍光區位移至白光區。而以353 nm激發下，放射光譜構成與233 nm激發下相同，當Dy3+離子摻雜濃度為1 mol%，會有最強的放射強度，通過對反對稱指數的觀察，對比於233 nm激發下變化較為平緩，顯示佔據發光主導位在黃光區的4F9/2→6H13/2電偶極躍遷變化較小，可看出CIE色度座標位移範圍小，整體依舊座落在白光區。而系列二則在煆燒溫度1300 ℃持溫5小時下，固定Dy3+離子濃度為1 mol%，通過共摻La3+離子取代Y3+離子晶格位置以製備Sr(Y0.99-xLaxDy0.01)2O4螢光粉。由XRD分析顯示，隨著La3+離子摻雜濃度提升，從正交晶系SrY2O4相逐漸轉變成正交晶系SrLa2O4相，當La3+離子完全取代Y3+離子，沒有觀察到二次相產生。SEM結果顯示La3+ 離子濃度增加，顆粒尺寸有變大的趨勢，晶體表面亦產生變化，但仍呈現不規則形狀且因高溫導致顆粒團聚現象。在250 nm激發下，La3+離子濃度為30 mol%時有最強的放射強度，CIE色度座標皆位於白光區，而353 nm激發下，La3+離子濃度為90 mol%時有最強的放射強度，隨著La3+離子濃度遞增，CIE色度座標由白光區位移至黃光區。系列三則是摻雜不同過渡金屬Zn2+離子濃度，於煆燒溫度1300℃持溫5小時條件下製備(Sr1-yZny)(Y0.99Dy0.01)2O4螢光粉。從XRD結果顯示，Zn2+離子取代Sr2+離子位置，並無二次相產生，亦均為正交晶系SrY2O4之結構。根據半高寬值可知，Zn2+摻入其值有下降，說明結晶性有變好；SEM分析結果顯示，由於高溫整體依舊呈現團聚現象，在激發波長233 nm激發下，Zn2+離子濃度為5 mol%時有最強的放射強度，CIE色度座標皆位於白光區，當激發波長353 nm激發下，整體發光強度皆有提升，說明結晶性改變對發光強度有所影響，CIE色度座標顯示皆位於白光區無明顯變化。.
520 3 $a In this study, the tunable luminescent phosphor SrY2O4:Dy3+ was prepared using the solid-state reaction method under a calcination temperature at 1300 oC for 5 h. There are three series for discussion in this study including the SrY2O4:Dy3+ phosphor synthesization, co-doped with La3+ ion and transition metal Zn2+ ion to analyze the effects of doping concentrations and different excitation wavelengths on the crystal structure, surface morphologies, and luminescent properties of the phosphors. For the first part, SrY2O4 is used to be the host of phosphors, and doped with different concentrations Dy3+ ion as the activator. The XRD analysis results show that they are all the orthorhombic SrY2O4 structure. As the Dy3+ ion doping concentration increases, no other secondary phase is observed, and impurity of Y2O3 tends to disappear gradually. SEM analysis shows that when the Dy3+ ion concentration increases, the particle size does not change much, but the particles agglomerate due to the high calcination temperature. Under an excitation wavelength of 233 nm, three emission peaks were observed in the radiation spectra, which are the 4F9/2→6H15/2 magnetic dipole transition, 4F9/2→6H13/2 electric dipole transition and 4F9/2→6H11/2 electronic transition for the typical characteristic peaks of Dy3+ ion. When the Dy3+ ion doping concentration is 0.5 mol%, there will be the strongest radiation intensity. The CIE chromaticity coordinates show a shift from the blue light region to the white light region with the increasing of Dy3+ ion concentrations. Under the 353 nm exciting, the emission spectra composition is the same as that for the 233 nm excitation. When the Dy3+ ion doping concentration is 1 mol%, there will be the strongest radiation intensity. Compared with 233 nm excitation by observing the asymmetry ratio, the change is relatively gentle, indicating that the 4F9/2→6H13/2 electric dipole transition that occupies the dominant yellow light region has a small change. It can be seen that the CIE chromaticity coordinate displacement range is small, and the whole is still located in the white light region. In the second part, the Y3+ ion lattice position in the Sr(Y0.99Dy0.01)2O4 system is replaced by co-doping La3+ ions. The XRD analysis results show that as the doping concentration of La3+ ions increases, the orthorhombic structure of SrY2O4 gradually transforms into the orthorhombic structure of SrLa2O4. When La3+ ions completely replace Y3+ ions, no secondary phase is observed. The SEM results show that the La3+ ion concentration increases, the particle size tends to become larger, and the crystal surface also changes, but it still presents an irregular shape and the particles agglomerate due to high calcination temperature. Under an excitation wavelength of 250 nm, the strongest emission intensity was observed when the La3+ ion concentration is 30 mol%. The CIE chromaticity coordinates are all located in the white light area. However, under 353 nm excitation, the strongest emission intensity appears at the La3+ ion concentration of 90 mol%. As the concentrations of La3+ ion increases, the CIE chromaticity coordinate moves from the white light area to the yellow light region. In the third part, different concentrations of transition mtetal Zn2+ ion was introduced to substitute the Sr2+ ion in the Sr(Y0.99Dy0.01)2O4 phosphor. There is no secondary appear in the XRD results show that Zn2+ ions replace the Sr2+ ions lattice position, and form the structure of orthorhombic SrY2O4. According to the FWHM value, it can be seen that the value decreased as the Zn2+ ion contents increased. indicating that the crystallinity of Sr(Y0.99Dy0.01)2O4 phosphor has become better. The SEM analysis results show the whole phosphor still shows agglomeration duing to the high calcination temperature. Under the excitation wavelength of 233 nm, the strongest radiation intensity was observed when the Zn2+ ion concentration is 5 mol%. The CIE chromaticity coordinates are all located in the white light region. When the excitation wavelength is 353 nm, the overall luminescence intensity increases which is due to the crystallinity became better when the Zn2+ ion is co-doped in the Sr(Y0.99Dy0.01)2O4 system..
563 $a (平裝)
650 # 4 $a Zn2+ ions. $3 1451662
650 # 4 $a phosphor. $3 1048609
650 # 4 $a solid-state reaction. $3 1016688
650 # 4 $a SrLn2O4. $3 1451661
650 # 4 $a Dy3+ ions. $3 1451660
650 # 4 $a 螢光粉. $3 999070
650 # 4 $a 固態反應法. $3 999069
650 # 4 $a Dy3+稀土離子. $3 1419292
650 # 4 $a Zn2+離子. $3 1419289
856 7 # $u https://handle.ncl.edu.tw/11296/t67bwe $z 電子資源 $2 http