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Synthesis of monoclinic Ho,Tm:KLu(WO4)2 microrods with high photothermal conversion efficiency via a thermal decomposition-assisted method
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2020-12-23 , DOI: 10.1039/d0tc04969g Albenc Nexha 1, 2, 3, 4, 5 , Joan J. Carvajal 1, 2, 3, 4, 5 , Maria Cinta Pujol 1, 2, 3, 4, 5 , Francesc Díaz 1, 2, 3, 4, 5 , Magdalena Aguiló 1, 2, 3, 4, 5
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2020-12-23 , DOI: 10.1039/d0tc04969g Albenc Nexha 1, 2, 3, 4, 5 , Joan J. Carvajal 1, 2, 3, 4, 5 , Maria Cinta Pujol 1, 2, 3, 4, 5 , Francesc Díaz 1, 2, 3, 4, 5 , Magdalena Aguiló 1, 2, 3, 4, 5
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Monoclinic potassium lutetium double tungstate (KLu(WO4)2) microcrystals with precise rod shape were synthesized using a novel thermal decomposition-assisted method. The formation of the monoclinic crystalline phase was confirmed by X-ray powder diffraction and unpolarized Raman spectroscopy. The potential applications of the KLu(WO4)2 microrods were confirmed by properly doping with lanthanide ions (Ho3+ and Tm3+) and recording their emission in the visible and near-infrared (NIR), after excitation with an 808 nm near infrared laser source. The temperature sensing properties of these rods by using the different emission lines lying in the NIR were analyzed, and compared to those exhibited by other Ho, Tm:KLuW particles synthesized through different methods (modified sol–gel Pechini, microwave-assisted and conventional autoclave solvothermal methodologies). The photothermal conversion efficiency of Ho3+, Tm3+:KLu(WO4)2 microrods was also analyzed and established in the range of 66 ± 2%, which is higher than that of Ho,Tm:KLu(WO4)2 nanoparticles synthesized by other methods, and comparable to that of gold nanorods.
中文翻译：
热分解辅助法合成高光热转化效率的单斜Ho，Tm：KLu（WO4）2微棒
采用新颖的热分解辅助方法合成了具有精确棒状的单斜potassium钨酸钾（KLu（WO 4）2）微晶。通过X射线粉末衍射和非偏振拉曼光谱确认单斜晶相的形成。通过正确掺杂镧系元素离子（Ho 3+和Tm 3+），证实了KLu（WO 4）2微棒的潜在应用。），并在用808 nm近红外激光源激发后将其发射记录在可见光和近红外（NIR）中。通过使用位于近红外的不同发射谱线分析了这些棒的温度感测特性，并将其与通过不同方法（改良的溶胶-凝胶Pechini，微波辅助和常规高压釜）合成的其他Ho，Tm：KLuW颗粒所展现的那些相比较。溶剂热方法）。还分析了Ho 3+，Tm 3+：KLu（WO 4）2微棒的光热转换效率，并将其建立在66±2％的范围内，高于Ho，Tm：KLu（WO 4）2的光热转换效率。 通过其他方法合成的纳米颗粒，可与金纳米棒相比。
更新日期：2021-01-18
中文翻译：
热分解辅助法合成高光热转化效率的单斜Ho，Tm：KLu（WO4）2微棒
采用新颖的热分解辅助方法合成了具有精确棒状的单斜potassium钨酸钾（KLu（WO 4）2）微晶。通过X射线粉末衍射和非偏振拉曼光谱确认单斜晶相的形成。通过正确掺杂镧系元素离子（Ho 3+和Tm 3+），证实了KLu（WO 4）2微棒的潜在应用。），并在用808 nm近红外激光源激发后将其发射记录在可见光和近红外（NIR）中。通过使用位于近红外的不同发射谱线分析了这些棒的温度感测特性，并将其与通过不同方法（改良的溶胶-凝胶Pechini，微波辅助和常规高压釜）合成的其他Ho，Tm：KLuW颗粒所展现的那些相比较。溶剂热方法）。还分析了Ho 3+，Tm 3+：KLu（WO 4）2微棒的光热转换效率，并将其建立在66±2％的范围内，高于Ho，Tm：KLu（WO 4）2的光热转换效率。 通过其他方法合成的纳米颗粒，可与金纳米棒相比。
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