Optically Detected Thermal Effects in Rare-Earth Doped Materials for Host Characterization, Thermometric Devices, Nanothermometry and Biothermometry

Cid B. De Araújo; Leonardo De S. Menezes

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Optically Detected Thermal Effects in Rare-Earth Doped Materials for Host Characterization, Thermometric Devices, Nanothermometry and Biothermometry

机译：在稀土掺杂材料中进行光学检测的热效应，用于主机表征，测温装置，纳米温度计和生物温度计

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We present a review of recent works on optically investigated thermal effects in crystalline and amorphous materials doped with trivalent rare-earth (RE) ions. The paper describes how the frequency upconversion (UC) photoluminescence (PL) technique is used to investigate the thermal behavior of samples and how to perform optical measurements of temperature. The UC technique is based on the sequential multiphoton absorption phenomenon that leads to anti-Stokes type emission. By measuring the relative intensity between UC emissions from thermally coupled RE energy levels, the absolute temperature of a sample can be determined. Research in this area is motivated by the possible uses of UC for basic characterization of materials and for noncontact thermometry using nanoscale devices as well as for biological and medical studies. Examples based on the application of bulk materials and nanopowders doped with several RE ions are presented.

机译：我们目前对光学研究掺杂三价稀土（RE）离子的晶体和非晶态材料中的热效应的最新研究进行综述。本文介绍了如何使用频率上转换（UC）光致发光（PL）技术来研究样品的热行为以及如何进行温度的光学测量。 UC技术基于导致反斯托克斯型发射的连续多光子吸收现象。通过测量来自热耦合RE能级的UC排放之间的相对强度，可以确定样品的绝对温度。 UC在材料的基本表征和使用纳米级设备的非接触测温以及生物学和医学研究中的可能用途激发了该领域的研究。给出了基于散装材料和掺杂有几种RE离子的纳米粉的应用示例。

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《Journal of the Brazilian Chemical Society》 |2015年第12期|共13页
作者
Cid B. De Araújo; Leonardo De S. Menezes;
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Optically Detected Thermal Effects in Rare-Earth Doped Materials for Host Characterization, Thermometric Devices, Nanothermometry and Biothermometry

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