Graphene-based hybrid structures combined with functional materials of ferroelectrics and semiconductors

Abstract

Fundamental studies and applications of 2-dimensional (2D) graphene may be deepened and broadened via combining graphene sheets with various functional materials, which have been extended from the traditional insulator of SiO2 to a versatile range of dielectrics, semiconductors and metals, as well as organic compounds. Among them, ferroelectric materials have received much attention due to their unique ferroelectric polarization. As a result, many attractive characteristics can be shown in graphene/ferroelectric hybrid systems. On the other hand, graphene can be integrated with conventional semiconductors and some newly-discovered 2D layered materials to form distinct Schottky junctions, yielding fascinating behaviours and exhibiting the potential for various applications in future functional devices. This review article is an attempt to illustrate the most recent progress in the fabrication, operation principle, characterization, and promising applications of graphene-based hybrid structures combined with various functional materials, ranging from ferroelectrics to semiconductors. We focus on mechanically exfoliated and chemical-vapor-deposited graphene sheets integrated in numerous advanced devices. Some typical hybrid structures have been highlighted, aiming at potential applications in non-volatile memories, transparent flexible electrodes, solar cells, photodetectors, and so on.

A Library of Doped-Graphene Images via Transmission Electron Microscopy

“…These facts indicate that the phosphorus doping on graphene provides increased defect sites and promotes the dispersion of Pt nanoparticles. The typical crystalline lattice fringes of Pt nanoparticles (0.23 nm) were clearly observed by HR-TEM ( Figure 16I,J), which are consistent with previous published Pt nanoparticles [28,47]. Moreover, the SAED patterns of Pt/G and Pt/PG catalysts in insets of Figure 16I,J also confirm the existence of Pt nanoparticles.…”

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

“…Graphene is a highly recommended material for TCFs due to its excellent electrical conductivity and optical transmittance in the visible and near‐infrared (NIR) region . Moreover, graphene exhibits high flexibility and outstanding chemical stability .…”

Charge‐Trap Memory Based on Hybrid 0D Quantum Dot–2D WSe2 Structure

“…Thus, QDs are more suitable as charge‐trap layer material in nonvolatile memory devices. It is worth mentioning that 2D materials‐based hybrid structures combined with other functional materials generally show excellent performance …”