Hot-carrier engineering for two-dimensional integrated infrared optoelectronics

IF 22.7 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Infomat Pub Date : 2024-05-13 DOI:10.1002/inf2.12556

Yuanfang Yu, Jialin Zhang, Lianhui Wang, Zhenhua Ni, Junpeng Lu, Li Gao

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Abstract

Plasmonic hot carrier engineering holds great promise for advanced infrared optoelectronic devices. The process of hot carrier transfer has the potential to surpass the spectral limitations of semiconductors, enabling detection of sub-bandgap infrared photons. By harvesting hot carriers prior to thermalization, energy dissipation is minimized, leading to highly efficient photoelectric conversion. Distinguished from conventional band-edge carriers, the ultrafast interfacial transfer and ballistic transport of hot carriers present unprecedented opportunities for high-speed photoelectric conversion. However, a complete description on the underlying mechanism of hot-carrier infrared optoelectronic device is still lacking, and the utilization of this strategy for tailoring infrared response is in its early stages. This review aims to provide a comprehensive overview of the generation, transfer and transport dynamics of hot carriers. Basic principles of hot-carrier conversion in heterostructures are discussed in detail. In addition, progresses of two-dimensional (2D) infrared hot-carrier optoelectronic devices are summarized, with a specific emphasis on photodetectors, solar cells, light-emitting devices and novel functionalities through hot-carrier engineering. Furthermore, challenges and prospects of hot-carrier device towards infrared applications are highlighted.

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二维集成红外光电的热载流子工程

等离子体热载流子工程为先进的红外光电设备带来了巨大前景。热载流子传输过程有可能超越半导体的光谱限制，实现对亚带隙红外光子的检测。通过在热化之前收集热载流子，可以最大限度地减少能量耗散，从而实现高效光电转换。有别于传统的带边载流子，热载流子的超快界面转移和弹道传输为高速光电转换提供了前所未有的机遇。然而，目前对热载流子红外光电器件的基本机理还缺乏完整的描述，利用这种策略来定制红外响应也还处于早期阶段。本综述旨在全面概述热载流子的产生、转移和传输动力学。文中详细讨论了异质结构中热载流子转换的基本原理。此外，还总结了二维（2D）红外热载流子光电器件的进展，特别强调了光电探测器、太阳能电池、发光器件以及通过热载流子工程实现的新功能。此外，还强调了热载流子器件在红外应用方面面临的挑战和前景。

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来源期刊

Infomat MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

37.70

自引率

3.10%

发文量

111

审稿时长

8 weeks

期刊介绍： InfoMat, an interdisciplinary and open-access journal, caters to the growing scientific interest in novel materials with unique electrical, optical, and magnetic properties, focusing on their applications in the rapid advancement of information technology. The journal serves as a high-quality platform for researchers across diverse scientific areas to share their findings, critical opinions, and foster collaboration between the materials science and information technology communities.