Academic Journal
Room temperature multi-phonon upconversion photoluminescence in monolayer semiconductor WS2
| Title: | Room temperature multi-phonon upconversion photoluminescence in monolayer semiconductor WS2 |
|---|---|
| Authors: | Jadczak, J., Bryja, L., Kutrowska-Girzycka, J., Kapuściński, P., Bieniek, M., Huang, Y.-S., Hawrylak, P. |
| Publisher Information: | Nature Publishing Group UK |
| Publication Year: | 2019 |
| Collection: | PubMed Central (PMC) |
| Subject Terms: | Article |
| Description: | Photon upconversion is an anti-Stokes process in which an absorption of a photon leads to a reemission of a photon at an energy higher than the excitation energy. The upconversion photoemission has been already demonstrated in rare earth atoms in glasses, semiconductor quantum wells, nanobelts, carbon nanotubes and atomically thin semiconductors. Here, we demonstrate a room temperature upconversion photoluminescence process in a monolayer semiconductor WS2, with energy gain up to 150 meV. We attribute this process to transitions involving trions and many phonons and free exciton complexes. These results are very promising for energy harvesting, laser refrigeration and optoelectronics at the nanoscale. |
| Document Type: | text |
| Language: | English |
| Relation: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6328540/; http://www.ncbi.nlm.nih.gov/pubmed/30631049; http://dx.doi.org/10.1038/s41467-018-07994-1 |
| DOI: | 10.1038/s41467-018-07994-1 |
| Availability: | https://doi.org/10.1038/s41467-018-07994-1 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6328540/ http://www.ncbi.nlm.nih.gov/pubmed/30631049 |
| Rights: | © The Author(s) 2019 ; Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| Accession Number: | edsbas.5F98D586 |
| Database: | BASE |
| Description not available. |