当前位置：
X-MOL 学术
›
Luminescence
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
White light emission and thermoluminescence studies of Dy3+-activated hardystonite (Ca2ZnSi2O7) phosphor
Luminescence ( IF 3.2 ) Pub Date : 2021-05-28 , DOI: 10.1002/bio.4095 Siteshwari Chandraker 1 , Jagjeet Kaur 1 , Ruby Priya 2 , Vikas Dubey 3 , Neha Dubey 1
Luminescence ( IF 3.2 ) Pub Date : 2021-05-28 , DOI: 10.1002/bio.4095 Siteshwari Chandraker 1 , Jagjeet Kaur 1 , Ruby Priya 2 , Vikas Dubey 3 , Neha Dubey 1
Affiliation
|
Here, we report the photoluminescence and thermoluminescent properties of Dy-activated Ca2ZnSi2O7 phosphors synthesized using the solid-state method. The synthesized phosphors showed hardystonite type structure, and had micron-sized particles. Fourier transform infrared spectroscopy (FTIR) showed the existence of the functional groups and confirmed the formation of phosphor and photoluminescence techniques. The phosphors under excitation at 239 nm exhibited green-yellow emission spectra in the region 481–575 nm corresponding to the 4F9/2→6H15/2 and 4F9/2→6H13/2 transitions of Dy3+ ions. The Commission Internationale de l'Eclairage (CIE) coordinates were achieved to be (0.25, 0.27), which was narrowly close to the white region. Thermoluminescence (TL) glow curve analysis of prepared Dy3+-activated Ca2ZnSi2O7 phosphors were recorded for different ultraviolet (UV) light exposure times and found to have a linear response with dose. The TL glow curves, recorded with various UV exposure times ranging from 5 to 25 min, showed a linear response with dosage. The corresponding kinetic parameters were also calculated using a computerized glow curve deconvolution (CGCD) technique. Activation energy was observed to enhance the increase in the peak temperature and its value was substantially higher for the third peak fitted using CGCD. The obtained results indicated that the synthesized pristine phosphors could be potentially used for lighting, displays, and dosimetric applications.
中文翻译：
Dy3+ 激活的硬石 (Ca2ZnSi2O7) 磷光体的白光发射和热释光研究
在这里，我们报告了使用固态方法合成的 Dy 激活的 Ca 2 ZnSi 2 O 7磷光体的光致发光和热致发光特性。合成的磷光体显示出硬石型结构，并具有微米级颗粒。傅里叶变换红外光谱 (FTIR) 显示了官能团的存在，并证实了磷光体和光致发光技术的形成。在 239 nm 激发下的荧光粉在 481–575 nm 区域表现出绿黄色发射光谱，对应于4 F 9/2 → 6 H 15/2和4 F 9/2 → 6 H 13/2Dy 3+离子的跃迁。国际照明委员会 (CIE) 坐标达到 (0.25, 0.27)，与白色区域非常接近。制备的 Dy 3+活化 Ca 2 ZnSi 2 O 7 的热释光 (TL) 辉光曲线分析记录了不同紫外线 (UV) 曝光时间的荧光粉，发现荧光粉与剂量呈线性响应。TL 辉光曲线，记录了不同的紫外线照射时间，范围从 5 到 25 分钟，显示出与剂量的线性响应。还使用计算机化辉光曲线解卷积 (CGCD) 技术计算了相应的动力学参数。观察到活化能增强了峰值温度的增加，并且对于使用 CGCD 拟合的第三个峰值，其值显着更高。获得的结果表明合成的原始磷光体有可能用于照明、显示器和剂量测定应用。
更新日期：2021-05-28
中文翻译：
Dy3+ 激活的硬石 (Ca2ZnSi2O7) 磷光体的白光发射和热释光研究
在这里，我们报告了使用固态方法合成的 Dy 激活的 Ca 2 ZnSi 2 O 7磷光体的光致发光和热致发光特性。合成的磷光体显示出硬石型结构，并具有微米级颗粒。傅里叶变换红外光谱 (FTIR) 显示了官能团的存在，并证实了磷光体和光致发光技术的形成。在 239 nm 激发下的荧光粉在 481–575 nm 区域表现出绿黄色发射光谱，对应于4 F 9/2 → 6 H 15/2和4 F 9/2 → 6 H 13/2Dy 3+离子的跃迁。国际照明委员会 (CIE) 坐标达到 (0.25, 0.27)，与白色区域非常接近。制备的 Dy 3+活化 Ca 2 ZnSi 2 O 7 的热释光 (TL) 辉光曲线分析记录了不同紫外线 (UV) 曝光时间的荧光粉，发现荧光粉与剂量呈线性响应。TL 辉光曲线，记录了不同的紫外线照射时间，范围从 5 到 25 分钟，显示出与剂量的线性响应。还使用计算机化辉光曲线解卷积 (CGCD) 技术计算了相应的动力学参数。观察到活化能增强了峰值温度的增加，并且对于使用 CGCD 拟合的第三个峰值，其值显着更高。获得的结果表明合成的原始磷光体有可能用于照明、显示器和剂量测定应用。
京公网安备 11010802027423号