2021
DOI: 10.1038/s41598-021-91414-w
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The influence of Coulomb interaction screening on the excitons in disordered two-dimensional insulators

Abstract: We study the joint effect of disorder and Coulomb interaction screening on the exciton spectra in two-dimensional (2D) structures. These can be van der Waals structures or heterostructures of organic (polymeric) semiconductors as well as inorganic substances like transition metal dichalcogenides. We consider 2D screened hydrogenic problem with Rytova–Keldysh interaction by means of so-called fractional Scrödinger equation. Our main finding is that above synergy between screening and disorder either destroys th… Show more

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Cited by 15 publications
(28 citation statements)
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“…where we have already substituted y 0 (9). The properties of operator L in (21) are already known, see, e.g. [27].…”
Section: Perturbation Theorymentioning
confidence: 99%
See 4 more Smart Citations
“…where we have already substituted y 0 (9). The properties of operator L in (21) are already known, see, e.g. [27].…”
Section: Perturbation Theorymentioning
confidence: 99%
“…[27]. This means that we can look for solution of the equations for perturbative corrections (21) in the form of expansion over the eigenfunctions of operator L. But as this operator has also continuous spectrum, latter approach becomes much less profitable than simple method of variations of parameters, known from classical theory of linear differential equations, see, e.g. [28].…”
Section: Perturbation Theorymentioning
confidence: 99%
See 3 more Smart Citations