热载流子吸收器中热电传输系数的光学测定

IF 3.8 2区物理与天体物理 Q2 PHYSICS, APPLIED

Physical Review Applied Pub Date : 2024-09-09 DOI:10.1103/physrevapplied.22.034018

Thomas Vezin, Hamidreza Esmaielpour, Laurent Lombez, Jean-François Guillemoles, Daniel Suchet

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引用次数: 0

摘要

热载流子太阳能电池为提高光伏设备的能量转换效率提供了潜力。此类系统的传输特性在很大程度上仍未得到探索，但可能会阻碍其效率的提高。在这项研究中，我们建立了一个合适的框架来描述光生热载流子的热电非极性传输，并推导出了非极性传输系数的分析表达式，这些表达式即使在退化情况下也有效。我们证明，这些传输系数可以通过高光谱光致发光成像来测量。我们通过证明其与弛豫时间近似的玻尔兹曼输运方程的一致性，验证了这一实验测定结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Optical determination of thermoelectric transport coefficients in a hot-carrier absorber

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Optical determination of thermoelectric transport coefficients in a hot-carrier absorber

Hot-carrier solar cells offer potential for enhancing the energy-conversion efficiency of photovoltaic devices. Transport properties of such systems remain largely unexplored but could hinder their efficiency. In this work, we develop a suitable framework for describing the thermoelectric ambipolar transport of photogenerated hot carriers and derive analytical expressions for the ambipolar transport coefficients that are valid even in the degenerate case. We demonstrate that these transport coefficients can be measured from hyperspectral photoluminescence imaging. We validate this experimental determination by showing its consistency with the Boltzmann transport equation in the relaxation-time approximation.

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来源期刊

Physical Review Applied PHYSICS, APPLIED-

CiteScore

7.80

自引率

8.70%

发文量

760

审稿时长

2.5 months

期刊介绍： Physical Review Applied (PRApplied) publishes high-quality papers that bridge the gap between engineering and physics, and between current and future technologies. PRApplied welcomes papers from both the engineering and physics communities, in academia and industry. PRApplied focuses on topics including: Biophysics, bioelectronics, and biomedical engineering, Device physics, Electronics, Technology to harvest, store, and transmit energy, focusing on renewable energy technologies, Geophysics and space science, Industrial physics, Magnetism and spintronics, Metamaterials, Microfluidics, Nonlinear dynamics and pattern formation in natural or manufactured systems, Nanoscience and nanotechnology, Optics, optoelectronics, photonics, and photonic devices, Quantum information processing, both algorithms and hardware, Soft matter physics, including granular and complex fluids and active matter.