Hot carriers in graphene - fundamentals and applications.
Hot carriers in graphene - fundamentals and applications.
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DOI：
10.1039/d0nr09166a
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发表时间：
2021-05-14
期刊：
影响因子：
6.7
通讯作者：
Tielrooij KJ
中科院分区：
文献类型：
--
作者：
Massicotte M ;Soavi G ;Principi A ;Tielrooij KJ
石墨烯中的热电荷载流子表现出迷人的物理现象，在过去的十年中，人们对其的理解有了很大的提高。与传统金属中的热载流子相比，它们具有明显不同的物理性质。这主要是由于石墨烯的线性能量-动量色散，声子特性，全界面特性，载流子密度可调到非常小的值，以及从电子掺杂到空穴掺杂的结果。近年来，人们对石墨烯热载流子技术应用的兴趣日益浓厚。特别感兴趣的是光学和光电子应用，其中热载流子用于检测（光探测），转换（非线性光子学）或发射（发光）光。石墨烯驱动的系统在这些应用领域可能会得到广泛的应用，并产生破坏性的影响，例如在数据通信、高频电子和工业质量控制领域。这篇综述的目的是提供与石墨烯热载流子开发应用相关的最相关的物理和工作原理的概述。石墨烯中的热电荷载流子表现出令人着迷的物理现象，具有令人兴奋的光电应用前景。综述了目前对相关基础物理学的认识和最有前景的应用。
Hot charge carriers in graphene exhibit fascinating physical phenomena, whose understanding has improved greatly over the past decade. They have distinctly different physical properties compared to, for example, hot carriers in conventional metals. This is predominantly the result of graphene's linear energy–momentum dispersion, its phonon properties, its all-interface character, and the tunability of its carrier density down to very small values, and from electron- to hole-doping. Since a few years, we have witnessed an increasing interest in technological applications enabled by hot carriers in graphene. Of particular interest are optical and optoelectronic applications, where hot carriers are used to detect (photodetection), convert (nonlinear photonics), or emit (luminescence) light. Graphene-enabled systems in these application areas could find widespread use and have a disruptive impact, for example in the field of data communication, high-frequency electronics, and industrial quality control. The aim of this review is to provide an overview of the most relevant physics and working principles that are relevant for applications exploiting hot carriers in graphene. Hot charge carriers in graphene exhibit fascinating physical phenomena and have great promise for exciting optoelectronic applications. The current understanding of the relevant fundamental physics and the most promising applications are reviewed.
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