@article{dacf235f41b9419e837b593f81a0fcf1,
title = "Non-Uniform Strain Engineering of 2D Materials",
abstract = "2D materials are elastic substances that can sustain high strain. While the response of these materials to spatially uniform strain is well studied, the effects of spatially non-uniform strain are understood much less. In this review, we examine the response of two different 2D materials, transition metal dichalcogenides and graphene, under non-uniform strain. First, we analyze pseudo-magnetic fields formed in graphene subjected to highly localized non-uniform strain. Second, we discuss the effect of non-uniform strain on excitons in non-uniformly strained TMDC. We show that while transport or “funneling” of excitons is relatively inefficient, a different process, a strain-related conversion of excitons to trions is dominant. Finally, we discuss the effects of uniform and non-uniform strain in a graphene-based phononic crystal. We find that uniform strain can be used to broadly tune the frequency of the phononic bandgap by more than 350 % and non-uniform strain smears that bandgap.",
keywords = "2D materials, Funneling, Non-uniform strain, Phononic crystal",
author = "Sviatoslav Kovalchuk and Kirchhof, {Jan N.} and Bolotin, {Kirill I.} and Harats, {Moshe G.}",
note = "Funding Information: KB acknowledges generous support by DFG projects #449506295 and TRR 227. MGH acknowledges the Planning and Budgeting Committee (PBC) of the Council for Higher Education in Israel for the Vatat Fellowship for the recruitment of new faculty members in quantum technologies. Funding Information: . Kirill Bolotin works in the field of electron transport and optoelectronics of two‐dimensional materials. He holds the chair of electrical transport in 2D materials. He was involved in the discovery of the fractional quantum effect in graphene, the demonstration of strain‐engineering of 2D MoS, first measurements of the exciton binding energy in 2D MoS, and the discovery of the renormalization of the elastic constants of the 2D materials. He was awarded the US NSF Career award (2010), the Sloan foundation award (2011), and the ERC starting grant (2016) 2 2 Funding Information: KB acknowledges generous support by DFG projects #449506295 and TRR 227. MGH acknowledges the Planning and Budgeting Committee (PBC) of the Council for Higher Education in Israel for the Vatat Fellowship for the recruitment of new faculty members in quantum technologies. Publisher Copyright: {\textcopyright} 2022 The Authors. Israel Journal of Chemistry published by Wiley-VCH GmbH.",
year = "2022",
month = mar,
day = "1",
doi = "10.1002/ijch.202100115",
language = "English",
volume = "62",
journal = "Israel Journal of Chemistry",
issn = "0021-2148",
publisher = "Wiley-Blackwell",
number = "3-4",
}