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...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | npj 2D Materials and Applications |
| Online Access: | https://doi.org/10.1038/s41699-025-00588-8 |
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| 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 |
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