Anti-Stokes Photoluminescence of Monolayer WS2
Pierret A, Tornatzky H, Maultzsch J (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Abstract
Anti-Stokes photoluminescence excitation of a WS2 monolayer flake between 10 and 300 K is reported herein. Even with continuous-wave lasers at low power, the emission of the exciton at excitation 100 meV below its emission energy at room temperature is observed. A mechanism which involves the trions as the intermediate state is proposed, leading to an efficient up-conversion process. In addition, it is demonstrated that phonons are the source of the additional energy needed by the system. Overall, the results provide evidence that anti-Stokes luminescence in transition metal dichalcogenides is very efficient.
Authors with CRIS profile
Involved external institutions
Germany (DE)How to cite
APA:
Pierret, A., Tornatzky, H., & Maultzsch, J. (2019). Anti-Stokes Photoluminescence of Monolayer WS2. physica status solidi (b). https://dx.doi.org/10.1002/pssb.201900419
MLA:
Pierret, Aurelie, Hans Tornatzky, and Janina Maultzsch. "Anti-Stokes Photoluminescence of Monolayer WS2." physica status solidi (b) (2019).
BibTeX: Download