التفاصيل البيبلوغرافية
| العنوان: |
Acoustically Driven Stark Effect in Transition Metal Dichalcogenide Monolayers |
| المؤلفون: |
Diego Scolfaro (11350006), Matheus Finamor (11350009), Luca O. Trinchão (11350012), Bárbara L. T. Rosa (11350015), Andrey Chaves (6499718), Paulo V. Santos (8139108), Fernando Iikawa (3758758), Odilon D. D. Couto (4585318) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Physiology, Ecology, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, surface acoustic waves, modulate multiexciton interactions, mev /( kv, hexagonal boron nitride, electric field means, dimensional semiconductor nanostructures, cm )< sup, 630 × 10, dissociate excitonic states, optical emission energies, excitonic optical emissions, 2 , body states, successfully induced, stark effect, plane polarizabilities, optoelectronic applications, nanostructured systems, efficiently quench, efficient mechanisms, considerably larger, attractive ingredient, allowing us, 90 %) |
| الوصف: |
The Stark effect is one of the most efficient mechanisms to manipulate many-body states in nanostructured systems. In mono- and few-layer transition metal dichalcogenides, it has been successfully induced by optical and electric field means. Here, we tune the optical emission energies and dissociate excitonic states in MoSe 2 monolayers employing the 220 MHz in-plane piezoelectric field carried by surface acoustic waves. We transfer the monolayers to high dielectric constant piezoelectric substrates, where the neutral exciton binding energy is reduced, allowing us to efficiently quench (above 90%) and red-shift the excitonic optical emissions. A model for the acoustically induced Stark effect yields neutral exciton and trion in-plane polarizabilities of 530 and 630 × 10 –5 meV/(kV/cm) 2 , respectively, which are considerably larger than those reported for monolayers encapsulated in hexagonal boron nitride. Large in-plane polarizabilities are an attractive ingredient to manipulate and modulate multiexciton interactions in two-dimensional semiconductor nanostructures for optoelectronic applications. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Acoustically_Driven_Stark_Effect_in_Transition_Metal_Dichalcogenide_Monolayers/16528369 |
| DOI: |
10.1021/acsnano.1c06854.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsnano.1c06854.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.DB9FC3B |
| قاعدة البيانات: |
BASE |