Light Sources and Photodetectors Enabled by 2D Semiconductors
Light Sources and Photodetectors Enabled by 2D Semiconductors
复制标题
二维半导体支持的光源和光电探测器
DOI：
10.1002/smtd.201800019
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发表时间：
2018
期刊：
影响因子：
12.4
通讯作者：
Yu Ting
中科院分区：
文献类型：
--
作者：
Shang Jingzhi;Cong Chunxiao;Wu Lishu;Huang Wei;Yu Ting
新兴的二维半导体以其迷人的基本特性和广阔的应用前景引起了越来越多的关注。二维半导体电子学和光电子学的技术研究正在为实现实际应用铺平道路，这为重塑当前的半导体产业开辟了新的机遇。特别是，基于二维半导体的光电子技术可以广泛应用于前景广阔的半导体和信息产业，如固态照明、片上光互连、量子计算和通信。本文综述了基于二维半导体的快速生长发光器件和光电探测器的制备和表征的研究进展。根据发射机制的不同，二维半导体激活光源可分为四种类型：激子发光二极管（led）、量子发光二极管、谷发光二极管和激光。此外，还讨论了基于原子薄二硫化钼、其他二维半导体和范德华异质结构的光探测器件，比较了不同器件的结构、性能参数和工作原理。此外，概述了实现具有理想特性的实用器件所面临的挑战，并提出了二维半导体光电子学的新研究机会。
The emerging 2D semiconductors have aroused increasing attention due to their fascinating fundamental properties and application prospects. Technical investigation of 2D semiconductor–based electronics and optoelectronics is paving the way to realizing practical applications, which opens up new opportunities to reshape the current semiconductor industry. Particularly, 2D semiconductor–based optoelectronics can be extensively utilized in the promising semiconductor and information industries, such as solid‐state lighting, on‐chip optical interconnects, quantum computing, and communication. Here, the research progress regarding the fabrication and characterization of rapidly growing light‐emitting devices and photodetectors enabled by 2D semiconductors is reviewed. According to different emission mechanisms, 2D semiconductor–activated light sources are classified into four types: excitonic light‐emitting diodes (LEDs), quantum LEDs, valley LEDs, and lasers. Moreover, photodetecting devices based on atomically thin MoS2, other 2D semiconductors, and van der Waals heterostructures are discussed, where diverse device structures, performance parameters, and working principles are compared. Furthermore, the remaining challenges in the realization of practical devices with desirable features are outlined and new research opportunities for 2D semiconductor optoelectronics are proposed.