2D materials classification, polarization mechanism and device application

The development of optoelectronic devices requires breakthroughs in new material systems and novel device mechanisms, and the demand recently changes from the detection of signal intensity and responsivity to the exploration of sensitivity of polarized state information. Two-dimensional (2D) materials are a rich family exhibiting diverse physical and electronic properties for polarization device applications, including anisotropic materials, valleytronic materials, and other hybrid heterostructures. In this review, we first review the polarized-light-dependent physical mechanism in 2D materials, then present detailed descriptions in optical and optoelectronic properties, involving Raman shift, optical absorption, and light emission and functional optoelectronic devices. Finally, a comment is made on future developments and challenges. The plethora of 2D materials and their heterostructures offers the promise of polarization-dependent scientific discovery and optoelectronic device applications.

This paper, published by Anlian Pan Group from Hunan University, summarizes the polarization-dependent optical properties and optoelectronic device applications of 2D materials. Based on the study of the physical mechanism of polarized light response, 2D materials hold great promises in functional device applications. Some research directions and physical problems are worthy to be further explored.

https://spj.sciencemag.org/journals/research/2020/5464258/

First, 2D anisotropic materials or nano-photonic structure-coupled 2D materials have specific advantages in quantum information devices. Research on related nonlinear optical properties, valley quantum state manipulations, quantum information devices, etc. is worthy to be explored in the near future. On the other hand, the development of silicon-based microelectronic integrated systems encounters serious physical bottlenecks. 2D materials have natural advantages in terms of size and excellent optoelectronic properties. 2D materials play an important role in building the bridge of system integration of photons and electrons, and contribute to the development of low-dimensional semiconductor/silicon-based hybrid devices. Therefore, polarization-related optoelectronics open up a future path for the vigorous development of low-dimensional material science and device integration applications.

Tag: Emerging materials research