Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Observation of Excitonic Rydberg States in Monolayer MoS2 and WS2 by Photoluminescence Excitation Spectroscopy.

Literature DB >> 25816155

Observation of Excitonic Rydberg States in Monolayer MoS2 and WS2 by Photoluminescence Excitation Spectroscopy.

Heather M Hill, Albert F Rigosi, Cyrielle Roquelet, Alexey Chernikov, Timothy C Berkelbach, David R Reichman, Mark S Hybertsen¹, Louis E Brus, Tony F Heinz.

Abstract

We have identified excited exciton states in monolayers of MoS2 and WS2 supported on fused silica by means of photoluminescence excitation spectroscopy. In monolayer WS2, the positions of the excited A exciton states imply an exciton binding energy of 0.32 eV. In monolayer MoS2, excited exciton transitions are observed at energies of 2.24 and 2.34 eV. Assigning these states to the B exciton Rydberg series yields an exciton binding energy of 0.44 eV.

Entities: Chemical

Keywords: 2D materials; Transition metal dichalcogenides; binding energy; excitons; molybdenum disulfide; tungsten disulfide

Mesh：

Substances：

Year: 2015 PMID： 25816155 DOI： 10.1021/nl504868p

Source DB: PubMed Journal: Nano Lett ISSN： 1530-6984 Impact factor: 11.189

Keyword Cloud
Cited

15 in total

1. 1s-intraexcitonic dynamics in monolayer MoS2 probed by ultrafast mid-infrared spectroscopy.

Authors: Soonyoung Cha; Ji Ho Sung; Sangwan Sim; Jun Park; Hoseok Heo; Moon-Ho Jo; Hyunyong Choi
Journal: Nat Commun Date: 2016-02-25 Impact factor: 14.919

2. Cascaded exciton energy transfer in a monolayer semiconductor lateral heterostructure assisted by surface plasmon polariton.

Authors: Jinwei Shi; Meng-Hsien Lin; I-Tung Chen; Nasim Mohammadi Estakhri; Xin-Quan Zhang; Yanrong Wang; Hung-Ying Chen; Chun-An Chen; Chih-Kang Shih; Andrea Alù; Xiaoqin Li; Yi-Hsien Lee; Shangjr Gwo
Journal: Nat Commun Date: 2017-06-26 Impact factor: 14.919

3. Exciton Relaxation Cascade in two-dimensional Transition Metal Dichalcogenides.

Authors: Samuel Brem; Malte Selig; Gunnar Berghaeuser; Ermin Malic
Journal: Sci Rep Date: 2018-05-29 Impact factor: 4.379

4. Scaling law for excitons in 2D perovskite quantum wells.

Authors: J-C Blancon; A V Stier; H Tsai; W Nie; C C Stoumpos; B Traoré; L Pedesseau; M Kepenekian; F Katsutani; G T Noe; J Kono; S Tretiak; S A Crooker; C Katan; M G Kanatzidis; J J Crochet; J Even; A D Mohite
Journal: Nat Commun Date: 2018-06-08 Impact factor: 14.919

5. Biexcitons in monolayer transition metal dichalcogenides tuned by magnetic fields.

Authors: Christopher E Stevens; Jagannath Paul; Timothy Cox; Prasana K Sahoo; Humberto R Gutiérrez; Volodymyr Turkowski; Dimitry Semenov; Steven A McGill; Myron D Kapetanakis; Ilias E Perakis; David J Hilton; Denis Karaiskaj
Journal: Nat Commun Date: 2018-09-13 Impact factor: 14.919

Observation of Excitonic Rydberg States in Monolayer MoS2 and WS2 by Photoluminescence Excitation Spectroscopy.

1. 1s-intraexcitonic dynamics in monolayer MoS2 probed by ultrafast mid-infrared spectroscopy.

2. Cascaded exciton energy transfer in a monolayer semiconductor lateral heterostructure assisted by surface plasmon polariton.

3. Exciton Relaxation Cascade in two-dimensional Transition Metal Dichalcogenides.

4. Scaling law for excitons in 2D perovskite quantum wells.

5. Biexcitons in monolayer transition metal dichalcogenides tuned by magnetic fields.

6. Large second harmonic generation in alloyed TMDs and boron nitride nanostructures.

7. Ultrafast Formation of Small Polarons and the Optical Gap in CeO₂.

8. Optical quantum technologies with hexagonal boron nitride single photon sources.

Review 9. Recent Advances in Two-Dimensional Quantum Dots and Their Applications.

10. Ionic-Liquid Gating in Two-Dimensional TMDs: The Operation Principles and Spectroscopic Capabilities.