Photothermal phenomenon: Extended ideas for thermophysical properties characterization
Photothermal phenomenon: Extended ideas for thermophysical properties characterization
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DOI：
10.1063/5.0082014
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发表时间：
2022-02-14
影响因子：
3.2
通讯作者：
Wang, Xinwei
中科院分区：
文献类型：
--
作者：
Liu, Jing;Han, Meng;Wang, Xinwei
光热现象涉及连续波、调制波或脉冲形式的材料光子加热。由此产生的温度升高携带了有关材料结构和热物理性质的非常丰富的信息。本综述旨在涵盖用于测量材料的热物理性质和界面热导/热阻的光热现象的一些扩展思想。对于频域光热现象，光声（PA）和光热辐射（PT）技术提供了测量涂层和悬浮样品的好方法，也可以使用激光闪光和时域热反射（TDTR）技术进行测量。基于电热传感的热探测在瞬态光电热（TPET）和脉冲激光辅助热弛豫（PLTR）技术中成功实现，这显着地将激光闪光技术的能力扩展到微/纳米级一维结构。能量传输状态分辨拉曼（ET-Raman）与传统技术的不同之处在于其特定材料的热传感能力和超快热传感的整体方式。为所有这些技术提供了详细的物理讨论，包括它们的优点和局限性。尽管如此，相对较新的技术仍存在较大的开发空间，包括 TPET、PLTR 和 ET-Raman。这些包括极端情况下的测量、灵敏度的提高以及区分共轭物理过程。
The photothermal phenomenon involves material photon heating in the form of continuous waves, modulated waves, or pulses. The resulting temperature rise carries very rich information about the material's structures and thermophysical properties. This review is constructed to cover some of the extended ideas of the photothermal phenomenon for measuring a material's thermophysical properties and interface thermal conductance/resistance. For frequency-domain photothermal phenomena, the photoacoustic (PA) and photothermal radiation (PT) techniques provide great ways to measure coatings and suspended samples, which can also be measured using the laser flash and time-domain thermoreflectance (TDTR) techniques. Thermal probing based on electrical thermal sensing is successfully implemented in the transient photo-electro-thermal (TPET) and pulsed laser-assisted thermal relaxation (PLTR) techniques, which significantly extend the capability of laser flash technique to micro/nanoscale 1D structures. The energy transport state-resolved Raman (ET-Raman) is distinct from traditional techniques in its material-specific thermal sensing capability and integral way of ultrafast thermal sensing. Detailed physics discussions are provided for all these techniques, including their advantages and limitations. Still, large development rooms exist for the relatively new techniques, including TPET, PLTR, and ET-Raman. These include measurements under extreme situations, sensitivity improvement, and distinguishing conjugated physical processes.