Special Issue "Graphene and other Two-dimensional Materials in Nanoelectronics and Optoelectronics"
A special issue of Materials (ISSN 1996-1944).
Deadline for manuscript submissions: closed (15 November 2019).
Interests: semiconductor materials/devices, especially GaN micro-LED displays and other devices based on GaAs and InP; 2D materials/devices, especially MOCVD growth and integration with III-Vs
Graphene and other two-dimensional (2D) materials have been one of the hottest research areas in the past decade. Giant projects, e.g., the EU Graphene Flagship led by Chalmers, have been launched. Today, commercial graphene products are readily available. However, most of them are graphene-based powders, paints, and composites. They are exciting, but one should not forget that the original motivation of Geim et al. to explore graphene was to study its field effect, hoping it would play a key role in post-silicon electronics. After all, nanoelectronics and optoelectronics are the main thread for 2D materials. That is the field where scientists tell the public 2D materials could replace, or at least complement the dominant role of Si in electronics.
Graphene’s carrier mobility is one of the highest among all materials, making it promising in high speed electronics. The lack of bandgap makes the transistor on–off ratio, as well as current saturation, hard to improve. However, MoS2, phosphorene, etc., possess large enough bandgaps. 2D insulators, such as h-BN, are also available. Therefore, the combination of 2D semiconductors, conductors and insulators is very valuable in post-silicon electronics. In addition, 2D materials are promising in optoelectronics, both for active elements, such as light emitting substances, and for passive elements, such as transparent electrodes. Generally speaking, the advantages of using 2D materials in nanoelectronics and optoelectronics include their ultra-small thickness, mechanical flexibility, sustainability, large varieties of material combinations, and most importantly, their outstanding optical and electrical properties. One thing worth mentioning is that, taking graphene as an example, it is not hard to find materials competing well with graphene in terms of mobility, electrical and thermal conductivity, transmittance, flexibility, etc.; nevertheless, it seems impossible to find something that combines all these properties in one single material—I believe that this is the fascinating part of graphene.
It is my pleasure to invite you to submit manuscripts to this Special Issue. Full papers, communications and reviews on experimental and theoretical studies of atomically-thin 2D materials in nanoelectronics and optoelectronics are all welcome.
Prof. Jie Sun
Manuscript Submission Information
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- 2D materials