Advances in Flexible Optoelectronics Based on Chemical Vapor Deposition‐Grown Graphene

Abstract

Graphene shows great potential for flexible optoelectronic devices owing to its unique 2D structure and excellent electronic, optical, and mechanical properties. Chemical vapor deposition (CVD) is the most promising method for fabricating large‐area and high‐quality graphene films at an acceptable cost; therefore enormous efforts have been attempted to investigate the flexible optoelectronic devices based on CVD‐grown graphene. Here, recent advances and significant development of CVD‐grown graphene towards flexible optoelectronics including photodetectors, organic solar cells, and light‐emitting diodes are reviewed. Insight into the challenges of improvement of optoelectronic properties, work function tuning, as well as interfacial control of CVD‐grown graphene for high‐performance devices is provided. In particular, the availability to fabricate large‐area devices on the flexible substrates is discussed, which is crucial to drive the practical use of CVD‐grown graphene for future wearable optoelectronics.

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Flexible Magnetic Field Nanosensors for Wearable Electronics: A Review

“…Graphene, a two-dimensional (2D) sheet of carbon atoms arranged in a hexagonal lattice, exhibits exceptional electrical, mechanical, and thermal properties that render it highly attractive for diverse applications. − Notably, its high carrier mobility, both on rigid and on flexible substrates, low sheet carrier density, and excellent flexibility make it an ideal material for Hall sensors in general and flexible Hall sensors in particular. Graphene can be deposited onto flexible substrates using techniques like chemical vapor deposition (CVD), enabling the fabrication of flexible Hall sensors with superior mechanical flexibility. − …”

Monolayers of Germanene/Janus Ga2SeTe van der Waals Heterostructures by First-Principles Calculations for High-Performance Optoelectronic Devices

“…Since graphene was discovered by Geim and Novoselov in 2004, it has become a research hotspot in the fields of condensed matter physics, − catalysis, , energy, , and optoelectronics. , Graphene has excellent physical properties, including Dirac cones, ultrahigh mobility, quantum Hall effect, etc., which have broad device application potential. Researchers are gradually turning their attention to two-dimensional (2D) nanomaterials with a graphene-like structure.…”