One-Dimensional van der Waals Heterostructures: A Perspective

Abstract

As a new frontier in low-dimensional material research, van der Waals (vdW) heterostructures, represented by 2D heterostructures, have attracted tremendous attention due to their unique properties and potential applications. The emerging 1D heterostructures open new possibilities for the field with expectant unconventional properties and yet more challenging preparation pathways. This Perspective aims to give an overall understanding of the state-of-the-art growth strategies and fantastic properties of the 1D heterostructures and provide an outlook for further development based on the controlled preparation, which will bring up a variety of applications in high-performance electronic, optoelectronic, magnetic, and energy storage devices. A quick rise of the fundamentals and application study of 1D heterostructures is anticipated.

Computational exfoliation of atomically thin one-dimensional materials with application to Majorana bound states

“…One-dimensional materials are interesting as well but have been less explored, and techniques for their production are less developed. The reduced dimensionality gives rise to modified band structures, charge screening, and electron-phonon coupling paving the way for new material properties [6,7]. If sufficient control of the atomic and electronic structure can be achieved, it might be possible to investigate exotic physical phenomena like Luttinger liquid behavior [8,9] and the formation of Majorana bound states [10,11].…”

Layer-Structured Anisotropic Metal Chalcogenides: Recent Advances in Synthesis, Modulation, and Applications

“…For the synthesis of controlled dimensions of 1D crystals, chemical transformation from chalcogen (Se, Te) to MCs has been extensively studied owing to the thermodynamically preferred 1D growth of chalcogens. − Se and Te inherently grow into 1D crystals because of the covalent bond in the helical chain along the c -axis and the vdW interaction among the helical chains. , Kwak et al demonstrated the length and thickness control over Te NRs with passivation of the growth tip by Se (Figure a) . Due to energy stabilization of c-axis facet by Se, growth of NRs was stopped upon Se introduction.…”

Building blocks for one-dimensional van der Waals heterostructures

“…Also, these macrostructures can be manipulated and transferred onto various substrates for further processes. These macrostructures can possess different functions depending on the building blocks used in the individual hetero-nanotubes and their combination sequences [24,25]. Let us take the application in photovoltaic devices as an example to extend the discussion.…”