Manipulating Interlayer Excitons for Near-Infrared Quantum Light Generation
Creators
-
1.
Los Alamos National Laboratory
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2.
Washington University in St. Louis
Abstract
Interlayer excitons (IXs) formed at the interface of van der Waals materials possess various novel properties. In parallel development, strain engineering has emerged as an effective means for creating 2D quantum emitters. Exploring the intersection of these two exciting areas, we use MoS2/WSe2 heterostructure as a model system and demonstrate how strain, defects, and layering can be utilized to create defect-bound IXs capable of bright, robust, and tunable quantum light emission in the technologically important near-infrared spectral range. Our work presents defect-bound IXs as a promising platform for pushing the performance of 2D quantum emitters beyond their current limitations.
Copyright and License
© 2023 American Chemical Society.
Acknowledgement
This work was performed at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE), Office of Science, by Los Alamos National Laboratory (LANL). H.Z., X.L., and H.H. acknowledge the primary support by Quantum Science Center, a National Quantum Information Science Research Center supported by Office of Science, U.S. DOE. V.C. is supported by DOE BES Program BES LANL22. A.P. acknowledges support from the Laboratory Directed Research and Development (LDRD) program 20200104DR. M.T.P. is supported by LDRD 20210782ER and LDRD 20210640ECR. H.Z. also acknowledges a LANL Director's Postdoctoral Fellow Award. L.Z. is supported by the National Science Foundation (NSF) Grant No. DMR-2124934, and L.Y. is supported by the Air Force Office of Scientific Research (AFOSR) Grant No. FA9550-20-1-0255. The first-principles simulation uses Anvil at Purdue University through allocation DMR100005 from the Advanced Cyberinfrastructure Coordination Ecosystem: Services & Support (ACCESS) program, which is supported by NSF grants #2138259, #2138286, #2138307, #2137603, and #2138296.
Contributions
H.Z., under the supervision of H.H., conceived, designed, and conducted the experiment and analyzed the data. L.Z. and L.Y. performed first-principles calculations. M.T.P. conducted Raman measurements. X.L. and V.C. assisted H.Z. in PL measurements. J.K.B. assisted in sample preparation. A.P. performed the modeling of the TRPL and photon correlation function. H.Z. and H.H. wrote the manuscript with input from all the authors. All authors have given approval to the final version of the manuscript.
Conflict of Interest
The authors declare no competing financial interest.
Files
nl3c03296_si_001.pdf
Additional details
Identifiers
- ISSN
- 1530-6992
Related works
- Is supplemented by
- https://pubs.acs.org/doi/suppl/10.1021/acs.nanolett.3c03296/suppl_file/nl3c03296_si_001.pdf (URL)
Funding
- Los Alamos National Laboratory
- BES LANL22
- Los Alamos National Laboratory
- 20200104DR
- Los Alamos National Laboratory
- 20210782ER
- Los Alamos National Laboratory
- 20210640ECR
- National Science Foundation
- DMR-2124934
- United States Air Force Office of Scientific Research
- FA9550-20-1-0255
- National Science Foundation
- DMR100005
- National Science Foundation
- OAC-2138259
- National Science Foundation
- OAC-2138286
- National Science Foundation
- OAC-2138307
- National Science Foundation
- OAC-2137603
- National Science Foundation
- OAC-2138296