Strain-induced exciton redistribution among quantum emitters in two-dimensional materials

Abstract The discovery of quantum emitters (QEs) in two-dimensional (2D) materials has triggered a surge of research to assess their suitability for quantum photonics. Although position-controlled QEs are routinely fabricated using static strain gradients, the use of dynamic strain fields to control...

Full description

Saved in:
Bibliographic Details
Main Authors: Giuseppe Ronco, Abel Martínez-Suárez, Davide Tedeschi, Matteo Savaresi, Aurelio Hierro-Rodríguez, Stephen McVitie, Sandra Stroj, Johannes Aberl, Moritz Brehm, Victor M. García-Suárez, Michele B. Rota, Pablo Alonso-González, Javier Martín-Sánchez, Rinaldo Trotta
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:npj 2D Materials and Applications
Online Access:https://doi.org/10.1038/s41699-025-00588-8
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1849763387994537984
author Giuseppe Ronco
Abel Martínez-Suárez
Davide Tedeschi
Matteo Savaresi
Aurelio Hierro-Rodríguez
Stephen McVitie
Sandra Stroj
Johannes Aberl
Moritz Brehm
Victor M. García-Suárez
Michele B. Rota
Pablo Alonso-González
Javier Martín-Sánchez
Rinaldo Trotta
author_facet Giuseppe Ronco
Abel Martínez-Suárez
Davide Tedeschi
Matteo Savaresi
Aurelio Hierro-Rodríguez
Stephen McVitie
Sandra Stroj
Johannes Aberl
Moritz Brehm
Victor M. García-Suárez
Michele B. Rota
Pablo Alonso-González
Javier Martín-Sánchez
Rinaldo Trotta
author_sort Giuseppe Ronco
collection DOAJ
description Abstract The discovery of quantum emitters (QEs) in two-dimensional (2D) materials has triggered a surge of research to assess their suitability for quantum photonics. Although position-controlled QEs are routinely fabricated using static strain gradients, the use of dynamic strain fields to control the brightness of QEs has not been explored yet. Here, we address this challenge by introducing a novel device in which WSe2 monolayers are integrated onto piezoelectric pillars that provide both static and dynamic strains. The static strains are first used to induce the formation of QEs, while their energy and brightness are then controlled via voltages on piezoelectric pillars. Numerical simulations show that these effects are due to a strain-induced modification of the confining-potential landscape, which leads to a net redistribution of excitons among the different QEs. Our work provides a method to dynamically control the energy and brightness of QEs in 2D materials.
format Article
id doaj-art-20da2d65b3cf4e3ea88afc7235dd4f86
institution DOAJ
issn 2397-7132
language English
publishDate 2025-07-01
publisher Nature Portfolio
record_format Article
series npj 2D Materials and Applications
spelling doaj-art-20da2d65b3cf4e3ea88afc7235dd4f862025-08-20T03:05:25ZengNature Portfolionpj 2D Materials and Applications2397-71322025-07-01911910.1038/s41699-025-00588-8Strain-induced exciton redistribution among quantum emitters in two-dimensional materialsGiuseppe Ronco0Abel Martínez-Suárez1Davide Tedeschi2Matteo Savaresi3Aurelio Hierro-Rodríguez4Stephen McVitie5Sandra Stroj6Johannes Aberl7Moritz Brehm8Victor M. García-Suárez9Michele B. Rota10Pablo Alonso-González11Javier Martín-Sánchez12Rinaldo Trotta13Department of Physics, Sapienza University of RomeDepartment of Physics, University of OviedoDepartment of Physics, Sapienza University of RomeDepartment of Physics, Sapienza University of RomeDepartment of Physics, University of OviedoSUPA, School of Physics and Astronomy, University of GlasgowForschungszentrum Mikrotechnik, FH VorarlbergInstitute of Semiconductor and Solid State Physics, Johannes Kepler University LinzInstitute of Semiconductor and Solid State Physics, Johannes Kepler University LinzDepartment of Physics, University of OviedoDepartment of Physics, Sapienza University of RomeDepartment of Physics, University of OviedoDepartment of Physics, University of OviedoDepartment of Physics, Sapienza University of RomeAbstract The discovery of quantum emitters (QEs) in two-dimensional (2D) materials has triggered a surge of research to assess their suitability for quantum photonics. Although position-controlled QEs are routinely fabricated using static strain gradients, the use of dynamic strain fields to control the brightness of QEs has not been explored yet. Here, we address this challenge by introducing a novel device in which WSe2 monolayers are integrated onto piezoelectric pillars that provide both static and dynamic strains. The static strains are first used to induce the formation of QEs, while their energy and brightness are then controlled via voltages on piezoelectric pillars. Numerical simulations show that these effects are due to a strain-induced modification of the confining-potential landscape, which leads to a net redistribution of excitons among the different QEs. Our work provides a method to dynamically control the energy and brightness of QEs in 2D materials.https://doi.org/10.1038/s41699-025-00588-8
spellingShingle Giuseppe Ronco
Abel Martínez-Suárez
Davide Tedeschi
Matteo Savaresi
Aurelio Hierro-Rodríguez
Stephen McVitie
Sandra Stroj
Johannes Aberl
Moritz Brehm
Victor M. García-Suárez
Michele B. Rota
Pablo Alonso-González
Javier Martín-Sánchez
Rinaldo Trotta
Strain-induced exciton redistribution among quantum emitters in two-dimensional materials
npj 2D Materials and Applications
title Strain-induced exciton redistribution among quantum emitters in two-dimensional materials
title_full Strain-induced exciton redistribution among quantum emitters in two-dimensional materials
title_fullStr Strain-induced exciton redistribution among quantum emitters in two-dimensional materials
title_full_unstemmed Strain-induced exciton redistribution among quantum emitters in two-dimensional materials
title_short Strain-induced exciton redistribution among quantum emitters in two-dimensional materials
title_sort strain induced exciton redistribution among quantum emitters in two dimensional materials
url https://doi.org/10.1038/s41699-025-00588-8
work_keys_str_mv AT giusepperonco straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT abelmartinezsuarez straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT davidetedeschi straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT matteosavaresi straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT aureliohierrorodriguez straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT stephenmcvitie straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT sandrastroj straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT johannesaberl straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT moritzbrehm straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT victormgarciasuarez straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT michelebrota straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT pabloalonsogonzalez straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT javiermartinsanchez straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials
AT rinaldotrotta straininducedexcitonredistributionamongquantumemittersintwodimensionalmaterials