Abstract
The materials-by-design paradigm is based on synergistic efforts involving advanced computation, synthesis and characterization to ensure properties meet various technological needs within a cost-effective framework. However, starting from the elements of the periodic table to achieving useful devices is a daunting road. Borophene, a two-dimensional (2D) allotrope of boron, is envisaged to play a role in this exciting area due to its extraordinarily rich polymorphism. The multitude of potentially stable structures, several of them already realized experimentally, differentiates borophene from all other mono-elemental ‘X-enes’. The possibility of harnessing this unique characteristic fuels hopes for achieving ‘on-demand’ crystallographic arrangements making borophene a candidate platform for various electronics, energy sciences and biology applications. Despite the scarcity of data on intrinsic electronic properties, the experimentally confirmed polymorphisms, the recent synthesis of bilayers and the first steps towards transferring borophene on device-compatible substrates are important milestones in borophene research.
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