当前位置：
X-MOL 学术
›
Phys. Status Solidi A
›
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.)
Nd3+‐Doped Lead Boro Selenate Glass: A New Efficient System for Near‐Infrared 1.06 μm Laser Emission
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2020-10-24 , DOI: 10.1002/pssa.202000602 Pathuri Naresh 1, 2 , Marek Kostrzewa 3 , Mikhail G. Brik 4, 5, 6 , Annapureddy Siva Sesha Reddy 1 , Nutakki Krishna Mohan 7 , Vandana Ravi Kumar 1 , Michal Piasecki 6 , Nalluri Veeraiah 1
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2020-10-24 , DOI: 10.1002/pssa.202000602 Pathuri Naresh 1, 2 , Marek Kostrzewa 3 , Mikhail G. Brik 4, 5, 6 , Annapureddy Siva Sesha Reddy 1 , Nutakki Krishna Mohan 7 , Vandana Ravi Kumar 1 , Michal Piasecki 6 , Nalluri Veeraiah 1
Affiliation
|
An exotic series of glasses with the composition 39PbO—(60–x)B2O3–xSeO2:1.0 Nd2O3 (10 ≤ x ≤ 50) is prepared and characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X‐ray spectroscopy (EDS) techniques. Results of infrared (IR), Raman, and X‐ray photoelectron spectroscopy (XPS) studies reveal that the glass network comprises quarantined selenite [SeO3]2− groups (that act as modifiers) and selenate [SeO4]2− groups in addition to BO3 and BO4 units. With the increase in SeO2 content, the concentration of selenite groups is found to be dominant. The optical absorption (OA) spectra exhibit several bands due to 4I9/2→2P1/2, 2G9/2, 4G9/2,7/2,5/2, 2H11/2, and 4F9/2, 7/2,5/2,3/2 transitions. The spectra are characterized using J–O theory and J–O parameters are found to follow the order: Ω2 > Ω6 > Ω4. The emission spectra recorded at λexc = 808 nm exhibit bands due to 4F3/2 → 4I9/2, 4I11/2, and 4I13/2 transitions. With increase in SeO2 content, intensity of all emission bands significantly increases. The quantum efficiency evaluated from the measured and calculated lifetimes of the 4F3/2 → 4I11/2 transition is found to be enhanced by 20% with increase in SeO2 from 10 to 50 mol%. The spectra are further analyzed quantitatively using kinetic rate equations of various excited levels and the reasons for enhancement of photoluminescence (PL) emission are identified and discussed.
中文翻译：
Nd3 +掺杂硼硼酸铅玻璃：一种用于近红外1.06μm激光发射的新型高效系统
异国系列与组合物39PbO-（60-眼镜X）乙2 ö 3 - X的SeO 2：1.0的Nd 2 ö 3（10≤ X ≤50）制备和表征通过X射线衍射（XRD），扫描电子显微镜（SEM）和能量色散X射线光谱（EDS）技术。红外（IR），拉曼光谱和X射线光电子能谱（XPS）研究的结果表明，玻璃网络包含隔离的亚硒酸盐[SeO 3 ] 2−基团（充当改性剂）和硒酸盐[SeO 4 ] 2−基团。除了BO 3和BO 4单位。随着SeO 2含量的增加，发现亚硒酸盐基团的浓度占主导。光吸收（OA）谱显示出几条带由于4余9/2 → 2 P 1/2，2 ģ 9/2，4 ģ 9 / 2,7 / 2,5 / 2，2 ħ 11/2，和4 F 9 / 2、7 / 2、5 / 2、3 / 2转换。该光谱是使用J-O理论值和J-O参数被发现按照顺序，其特征在于：Ω 2 >Ω 6 >Ω 4。记录在发射光谱λ EXC = 808个纳米波段表现出由于4 ˚F 3/2 → 4余9/2，4我11/2，和4个我13/2过渡。随着SeO 2含量的增加，所有发射带的强度都显着增加。发现随着SeO 2的增加，从4 F 3/2 → 4 I 11/2跃迁的测量和计算寿命评估的量子效率提高了20％。10至50摩尔％。使用各种激发能级的动力学速率方程对光谱进行进一步定量分析，并确定并讨论了增强光致发光（PL）发射的原因。
更新日期：2020-12-18
中文翻译：
Nd3 +掺杂硼硼酸铅玻璃：一种用于近红外1.06μm激光发射的新型高效系统
异国系列与组合物39PbO-（60-眼镜X）乙2 ö 3 - X的SeO 2：1.0的Nd 2 ö 3（10≤ X ≤50）制备和表征通过X射线衍射（XRD），扫描电子显微镜（SEM）和能量色散X射线光谱（EDS）技术。红外（IR），拉曼光谱和X射线光电子能谱（XPS）研究的结果表明，玻璃网络包含隔离的亚硒酸盐[SeO 3 ] 2−基团（充当改性剂）和硒酸盐[SeO 4 ] 2−基团。除了BO 3和BO 4单位。随着SeO 2含量的增加，发现亚硒酸盐基团的浓度占主导。光吸收（OA）谱显示出几条带由于4余9/2 → 2 P 1/2，2 ģ 9/2，4 ģ 9 / 2,7 / 2,5 / 2，2 ħ 11/2，和4 F 9 / 2、7 / 2、5 / 2、3 / 2转换。该光谱是使用J-O理论值和J-O参数被发现按照顺序，其特征在于：Ω 2 >Ω 6 >Ω 4。记录在发射光谱λ EXC = 808个纳米波段表现出由于4 ˚F 3/2 → 4余9/2，4我11/2，和4个我13/2过渡。随着SeO 2含量的增加，所有发射带的强度都显着增加。发现随着SeO 2的增加，从4 F 3/2 → 4 I 11/2跃迁的测量和计算寿命评估的量子效率提高了20％。10至50摩尔％。使用各种激发能级的动力学速率方程对光谱进行进一步定量分析，并确定并讨论了增强光致发光（PL）发射的原因。
京公网安备 11010802027423号