Stacking-Dependent Interlayer Excitons in BP/CrSe2 van der Waals Heterostructure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F25%3AA2603C42" target="_blank" >RIV/61988987:17310/25:A2603C42 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.nanolett.5c03389" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.nanolett.5c03389</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.nanolett.5c03389" target="_blank" >10.1021/acs.nanolett.5c03389</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stacking-Dependent Interlayer Excitons in BP/CrSe2 van der Waals Heterostructure

Popis výsledku v původním jazyce

The emergence of two-dimensional van der Waals (vdW) heterostructures has revolutionized exciton-based research due to their tunable electronic and optical properties. Here, we present a systematic many-body study of a BP/CrSe2 vdW heterostructure composed of experimentally realized boron phosphide (BP) and chromium diselenide (CrSe2) monolayers. We find a robust type-II band alignment across all stacking configurations; however, interlayer excitons emerge selectively depending on the stacking order. The vdW heterostructure exhibits strong exciton binding energy (0.34–0.44 eV, depending on stacking) and nanosecond-scale room-temperature radiative lifetimes, indicating long-lived excitonic states. Additionally, its optical absorption extends from the visible to the near-infrared regime, underscoring its potential for optoelectronic and excitonic applications. Our findings highlight the critical role of stacking-dependent interlayer coupling in controlling the excitonic properties of vdW heterostructures, paving the way for tailored design strategies in next-generation light-harvesting and quantum technologies.

Název v anglickém jazyce

Stacking-Dependent Interlayer Excitons in BP/CrSe2 van der Waals Heterostructure

Popis výsledku anglicky

The emergence of two-dimensional van der Waals (vdW) heterostructures has revolutionized exciton-based research due to their tunable electronic and optical properties. Here, we present a systematic many-body study of a BP/CrSe2 vdW heterostructure composed of experimentally realized boron phosphide (BP) and chromium diselenide (CrSe2) monolayers. We find a robust type-II band alignment across all stacking configurations; however, interlayer excitons emerge selectively depending on the stacking order. The vdW heterostructure exhibits strong exciton binding energy (0.34–0.44 eV, depending on stacking) and nanosecond-scale room-temperature radiative lifetimes, indicating long-lived excitonic states. Additionally, its optical absorption extends from the visible to the near-infrared regime, underscoring its potential for optoelectronic and excitonic applications. Our findings highlight the critical role of stacking-dependent interlayer coupling in controlling the excitonic properties of vdW heterostructures, paving the way for tailored design strategies in next-generation light-harvesting and quantum technologies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nano Letters

ISSN

1530-6984

e-ISSN

1530-6992

Svazek periodika

—

Číslo periodika v rámci svazku

47

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

16608-16613

Kód UT WoS článku

001615264700001

EID výsledku v databázi Scopus

2-s2.0-105023094674