Publication:
High-refractive index and mechanically cleavable non-van der Waals InGaS3

Дата
2022
Авторы
Toksumakov, A. N.
Ermolaev, G. A.
Slavich, A. S.
Doroshina, N. V.
Romanov, R. I.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
OrgUnit Logo
Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
The growing family of two-dimensional crystals has been recognized as a promising platform for investigation of rich low-dimension physics and production of a variety of devices. Of particular interest are recently reported atomic sheets of non-van der Waals materials, which reshape our understanding of chemical bonds and enable heterostructures with novel functionality. Here, we study the structural and optical properties of ultrathin non-van der Waals InGaS3 sheets produced by standard mechanical cleavage. Our ab initio calculations reveal weak out-of-plane covalent bonds, responsible for the layered structure of the material. The energy required for isolation of a single layer is as low as ~50 meVÅ–2, which is comparable with the conventional van der Waals material’s monolayer isolation energies of 20–60 meVÅ–2. A comprehensive study of the structural, vibrational, and optical properties of the material reveals its wide bandgap (2.73 eV), high refractive index (andgt;2.5) and negligible losses in the visible and infrared spectral ranges. These properties make it a perfect candidate for visible-range all-dielectric nanophotonics. © 2022, The Author(s).
Описание
Ключевые слова
Цитирование
High-refractive index and mechanically cleavable non-van der Waals InGaS3 / Toksumakov, A.N. [et al.] // npj 2D Materials and Applications. - 2022. - 6. - № 1. - 10.1038/s41699-022-00359-9
URI
https://www.doi.org/10.1038/s41699-022-00359-9
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85142543638&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000887903300001
 https://openrepository.mephi.ru/handle/123456789/27629
Коллекции
Публикации