Confined-state physics and signs of fermionization of moire excitons in WSe2/MoSe2 heterobilayers

被引：7

作者：

Lohof, F. ^{[1
,2
]}

Michl, J. ^{[3
,4
]}

Steinhoff, A. ^{[1
,2
]}

Han, B. ^{[5
]}

von Helversen, M. ^{[7
]}

Tongay, S. ^{[8
]}

Watanabe, K. ^{[9
]}

Taniguchi, T. ^{[10
]}

Hoefling, S. ^{[3
,4
]}

Reitzenstein, S. ^{[7
]}

Anton-Solanas, C. ^{[11
]}

Gies, C. ^{[1
,2
]}

Schneider, C. ^{[5
,6
]}

机构：

[1] Univ Bremen, Inst Theoret Phys, D-28359 Bremen, Germany

[2] Univ Bremen, Bremen Ctr Computat Mat Sci, D-28359 Bremen, Germany

[3] Julius Maximilians Univ Wurzburg, Phys Inst, D-97074 Wurzburg, Germany

[4] Lehrstuhl Tech Phys, Wurzburg Dresden Cluster Excellence Ctqmat, D-97074 Wurzburg, Germany

[5] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26129 Oldenburg, Germany

[6] Carl von Ossietzky Univ Oldenburg, Ctr Nanoscale Dynam, D-26129 Oldenburg, Germany

[7] Tech Univ Berlin, Inst Festkorperphys, Hardenbergstr 36, D-10623 Berlin, Germany

[8] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA

[9] Natl Inst Mat Sci, Res Ctr Funct Mat, 1-1 Namiki, Tsukuba 3050044, Japan

[10] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, 1-1 Namiki, Tsukuba 3050044, Japan

[11] Univ Autonoma Madrid, Inst Nicolas Cabrera, Inst Fis Mat Condensada, Dept Fis Mat, Madrid 28049, Spain

来源：

2D MATERIALS | 2023年 / 10卷 / 03期

基金：

欧洲研究理事会;

关键词：

moire excitons; quantum dots; non-linear interaction; exciton trapping; van der Waals heterostructures;

D O I：

10.1088/2053-1583/acd265

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We revisit and extend the standard bosonic interpretation of interlayer excitons (ILX) in the moire potential of twisted heterostructures of transition-metal dichalcogenides. In our experiments, we probe a high quality MoSe2/WSe2 van der Waals bilayer heterostructure via density-dependent photoluminescence spectroscopy and reveal strongly developed, unconventional spectral shifts of the emergent moire exciton resonances. The observation of saturating blueshifts of successive exciton resonances allow us to explain their physics in terms of a model utilizing fermionic saturable absorbers. This approach is strongly inspired by established quantum-dot models, which underlines the close analogy of ILX trapped in pockets of the moire potential, and quantum emitters with discrete eigenstates.

引用

页数：7

共 50 条

[11] Diffusivity Reveals Three Distinct Phases of Interlayer Excitons in MoSe2/WSe2 Heterobilayers
Wang, Jue
Shi, Qianhui
Shih, En-Min
Zhou, Lin
Wu, Wenjing
Bai, Yusong
Rhodes, Daniel
Barmak, Katayun
Hone, James
Dean, Cory R.
Zhu, X-Y
PHYSICAL REVIEW LETTERS, 2021, 126 (10)
[12] Strain tunable interlayer and intralayer excitons in vertically stacked MoSe2/WSe2 heterobilayers
Li, L. L.
Gillen, R.
Palummo, M.
Milosevic, M. V.
Peeters, F. M.
APPLIED PHYSICS LETTERS, 2023, 123 (03)
[13] Signatures of moiré trions in WSe2/MoSe2 heterobilayers
Erfu Liu
Elyse Barré
Jeremiah van Baren
Matthew Wilson
Takashi Taniguchi
Kenji Watanabe
Yong-Tao Cui
Nathaniel M. Gabor
Tony F. Heinz
Yia-Chung Chang
Chun Hung Lui
Nature, 2021, 594 : 46 - 50
[14] Localisation-to-delocalisation transition of moire excitons in WSe2/MoSe2 heterostructures
Blundo, Elena
Tuzi, Federico
Cianci, Salvatore
Cuccu, Marzia
Olkowska-Pucko, Katarzyna
Kipczak, Lucja
Contestabile, Giorgio
Miriametro, Antonio
Felici, Marco
Pettinari, Giorgio
Taniguchi, Takashi
Watanabe, Kenji
Babinski, Adam
Molas, Maciej R.
Polimeni, Antonio
NATURE COMMUNICATIONS, 2024, 15 (01)
[15] Resonance energy transfer from moire-trapped excitons in MoSe2/WSe2 heterobilayers to graphene: Dielectric environment effect
Hichri, A.
Amand, T.
Jaziri, S.
PHYSICAL REVIEW MATERIALS, 2021, 5 (11):
[16] Multifunctional WSe2/MoSe2/WSe2/MoSe2 heterostructures
Abderrahmane, Abdelkader
Woo, Changlim
Jung, Pan-Gum
Ko, Pil Ju
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2024, 169
[17] Interlayer and intralayer excitons in MoS2/WS2 and MoSe2/WSe2 heterobilayers
Torun, Engin
Miranda, Henrique P. C.
Molina-Sanchez, Alejandro
Wirtz, Ludger
PHYSICAL REVIEW B, 2018, 97 (24)
[18] Strong coupling and pressure engineering in WSe2–MoSe2 heterobilayers
Juan Xia
Jiaxu Yan
Zenghui Wang
Yongmin He
Yongji Gong
Weiqiang Chen
Tze Chien Sum
Zheng Liu
Pulickel M. Ajayan
Zexiang Shen
Nature Physics, 2021, 17 : 92 - 98
[19] Phonons in WSe2/MoSe2 van der Waals Heterobilayers
Mahrouche, Fayssal
Rezouali, Karim
Mahtout, Sofiane
Zaabar, Foudil
Molina-Sanchez, Alejandro
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2022, 259 (01):
[20] Interlayer donor-acceptor pair excitons in MoSe2/WSe2 moire heterobilayer
Cai, Hongbing
Rasmita, Abdullah
Tan, Qinghai
Lai, Jia-Min
He, Ruihua
Cai, Xiangbin
Zhao, Yan
Chen, Disheng
Wang, Naizhou
Mu, Zhao
Huang, Zumeng
Zhang, Zhaowei
Eng, John J. H.
Liu, Yuanda
She, Yongzhi
Pan, Nan
Miao, Yansong
Wang, Xiaoping
Liu, Xiaogang
Zhang, Jun
Gao, Weibo
NATURE COMMUNICATIONS, 2023, 14 (01)

← 1 2 3 4 5 →