Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
A Review of Scalable Hexagonal Boron Nitride (h?BN) Synthesis for Present and Future Applications
Hexagonal boron nitride (h?BN) is a layered inorganic synthetic crystal exhibiting high temperature stability and high thermal conductivity. As a ceramic material it has been widely used for thermal management, heat shielding, lubrication, and as a filler material for structural composites. Recent scientific advances in isolating atomically thin monolayers from layered van der Waals crystals to study their unique properties has propelled research interest in mono/few layered h?BN as a wide bandgap insulating support for nanoscale electronics, tunnel barriers, communications, neutron detectors, optics, sensing, novel separations, quantum emission from defects among others. Realizing these futuristic applications hinges on scalable cost?effective high?quality h?BN synthesis. Here, we review scalable approaches of high?quality mono/multilayer h?BN synthesis, discuss the challenges and opportunities for each method and contextualize their relevance to emerging applications. Maintaining a stoichiometric balance B:N = 1 as the atoms incorporate into the growing layered crystal and maintaining stacking order between layers during multi?layer synthesis emerge as some of the main challenges for h?BN synthesis and the development of processes to address these aspects can inform and guide the synthesis of other layered materials with more than one constituent element. Finally, we contextualize h?BN synthesis efforts along with quality requirements for emerging applications via a technological roadmap.This article is protected by copyright. All rights reserved
» Publication Date: 03/11/2022
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
