The rise of 2D materials/ferroelectrics for next generation photonics and optoelectronics devices

Abstract

Photonic and optoelectronic devices have been limited in most two-dimensional (2D) materials. Researchers have attempted diverse device structures, such as introducing some ferroelectric materials to form new hybrid materials that could improve the performance of these 2D devices. Ferroelectrics might adjust the carrier concentration, mobility, and bandgap of 2D materials to achieve non-volatile control of the photonic and optoelectronic properties. On the other hand, ferroelectrics have a spontaneous electric polarization that occurs below the Curie temperature and reverses under an applied electric field. The polarization can be modulated via incident light, while the light wavelengths can be tuned through switching the electric polarization. This could improve the performance of 2D photonic and optoelectronic devices. We believe that 2D materials, as an emerging member of 2D/ferroelectric hybrid materials, will have great potential in photonics and optoelectronics thanks to their tunable bandgap. Here, we provide a perspective of ferroelectrics on 2D materials for photonics and optoelectronics. We discuss the concept of ferroelectrics and their fundamentals and then present their unique advantages in optoelectronic devices.

Recent Advances in Ferroelectric‐Enhanced Low‐Dimensional Optoelectronic Devices

“…High-performance NVM of the next generation can be made with a wide range of LD functional materials. [80,81] This section summarizes and classifies recent progress based on different functional materials.…”

“…The structure and engineering of the device and the properties of the SC or FE dielectric gate affect FE PD's performance. [80,81] In most FE PDs, the FE dielectric gate layer at the material interface is not only required for the device to function, but it is also the region where charges are controlled. In this section, we classify the current FE PDs according to their main effects.…”

“…[102] Combining 2D materials with organic FE materials like P(VDF-TrFE) or PMN greatly enhances the miniaturization and wearability of PDs. [81] Wang et al studied the MoS 2 controlled by an electrostatic field from the P(VDF-TrFE) FE polarization. [29] The 3D schematic diagram of the MoS 2 /P(VDF-TrFE) photodetector is shown in Figure 14a.…”

Recent major advances and challenges in the emerging graphene-based nanomaterials in electrocatalytic fuel cell technology

“…The quality and performance of the produced graphene cost and its processability should be considered when determining the optimal substrate. 5–7,10–13,15–17,43,45,52,55,56,60,63,67,69,71,73,548–609…”

Multilayer SnS2/few-layer MoS2 heterojunctions with in-situ floating photogate toward high-performance photodetectors and optical imaging application

“…Two-dimensional layered materials (2DLMs), i.e., the atomically thin layered atomic crystals, represent a newly emerging family of novel semiconductor materials in the past two decades [1][2][3][4][5]. These ultrathin materials have manifested a wealth of intriguing characteristics that are substantially distinctive from conventional bulk semiconductors, including large surface-to-volume ratio, excellent flexibility, prominent quantum confinement, high mechanical strength, and wide-range tunability via electrostatic gating.…”