Electrical control of hybrid exciton transport in a van der Waals heterostructure.
Nanoscale devices
Nanoscale materials
Journal
Nature photonics
ISSN: 1749-4885
Titre abrégé: Nat Photonics
Pays: England
ID NLM: 101283276
Informations de publication
Date de publication:
2023
2023
Historique:
received:
08
11
2022
accepted:
10
03
2023
medline:
10
7
2023
pubmed:
10
7
2023
entrez:
10
7
2023
Statut:
ppublish
Résumé
Interactions between out-of-plane dipoles in bosonic gases enable the long-range propagation of excitons. The lack of direct control over collective dipolar properties has so far limited the degrees of tunability and the microscopic understanding of exciton transport. In this work we modulate the layer hybridization and interplay between many-body interactions of excitons in a van der Waals heterostructure with an applied vertical electric field. By performing spatiotemporally resolved measurements supported by microscopic theory, we uncover the dipole-dependent properties and transport of excitons with different degrees of hybridization. Moreover, we find constant emission quantum yields of the transporting species as a function of excitation power with radiative decay mechanisms dominating over nonradiative ones, a fundamental requirement for efficient excitonic devices. Our findings provide a complete picture of the many-body effects in the transport of dilute exciton gases, and have crucial implications for studying emerging states of matter such as Bose-Einstein condensation and optoelectronic applications based on exciton propagation.
Identifiants
pubmed: 37426431
doi: 10.1038/s41566-023-01198-w
pii: 1198
pmc: PMC10322698
doi:
Types de publication
Journal Article
Langues
eng
Pagination
615-621Informations de copyright
© The Author(s) 2023.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing interests.
Références
ACS Nano. 2021 Jan 26;15(1):1539-1547
pubmed: 33417424
Nat Commun. 2018 Jul 3;9(1):2586
pubmed: 29968708
Nano Lett. 2018 Jan 10;18(1):137-143
pubmed: 29240440
Nat Nanotechnol. 2022 Jun;17(6):577-582
pubmed: 35437321
Nat Nanotechnol. 2019 Dec;14(12):1104-1109
pubmed: 31636411
Nanoscale. 2020 May 28;12(20):11088-11094
pubmed: 32400821
Science. 2019 Nov 15;366(6467):870-875
pubmed: 31727834
Nat Photonics. 2022 Jan;16(1):79-85
pubmed: 34992677
Nat Nanotechnol. 2021 Jan;16(1):52-57
pubmed: 33139934
Nat Commun. 2014 Apr 16;5:3646
pubmed: 24736470
Science. 2019 May 3;364(6439):468-471
pubmed: 31048488
Sci Adv. 2020 Sep 23;6(39):
pubmed: 32967823
Nano Lett. 2022 Mar 23;22(6):2561-2568
pubmed: 35157466
Sci Adv. 2017 Feb 08;3(2):e1601832
pubmed: 28246636
Nanoscale. 2015 Apr 28;7(16):7402-8
pubmed: 25826397
Nanoscale Horiz. 2021 Dec 20;7(1):41-50
pubmed: 34877960
Sci Adv. 2020 Oct 7;6(41):
pubmed: 33028515
Nano Lett. 2022 Mar 9;22(5):1829-1835
pubmed: 35201774
Nature. 2020 Apr;580(7804):472-477
pubmed: 32322064
Nature. 2018 Aug;560(7718):340-344
pubmed: 30046107
Nat Commun. 2015 Feb 24;6:6242
pubmed: 25708612
Nano Lett. 2022 Aug 24;22(16):6599-6605
pubmed: 35969812
ACS Nano. 2022 Jan 25;16(1):1339-1345
pubmed: 35014783
Nat Photonics. 2019 Feb;13(2):131-136
pubmed: 30886643
Nat Mater. 2019 Jul;18(7):691-696
pubmed: 30962556