Low-Threshold Stimulated Emission Using Colloidal Quantum Wells
| dc.contributor.author | She, Chunxing | |
| dc.contributor.author | Fedin, Igor | |
| dc.contributor.author | Dolzhnikov, Dmitriy S. | |
| dc.contributor.author | Demortière, Arnaud | |
| dc.contributor.author | Schaller, Richard D. | |
| dc.contributor.author | Pelton, Matthew | |
| dc.contributor.author | Talapin, Dmitri V. | |
| dc.date.accessioned | 2023-08-15T13:09:14Z | |
| dc.date.available | 2023-08-15T13:09:14Z | |
| dc.date.issued | 2014-04-28 | |
| dc.description.abstract | The use of colloidal semiconductor nanocrystals for optical amplification and lasing has been limited by the need for high input power densities. Here we show that colloidal nanoplatelets produce amplified spontaneous emission with thresholds as low as 6 μJ/cm² and gain as high as 600 cm⁻¹, both a significant improvement over colloidal nanocrystals; in addition, gain saturation occurs at pump fluences 2 orders of magnitude higher than the threshold. We attribute this exceptional performance to large optical cross-sections, slow Auger recombination rates, and narrow ensemble emission line widths. | en |
| dc.description.sponsorship | Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This work was supported by the Keck Foundation and by the University of Chicago and the Department of Energy under Department of Energy Contract No. DE-AC02-06CH11357, awarded to UChicago Argonne, LLC, operator of Argonne National Laboratory. D.V.T. thanks the David and Lucile Packard Fellowship and the Samsung Global Research Outreach Program. This work used facilities supported by the University of Chicago NSF MRSEC Program under Award Number DMR-0213745. A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. | en |
| dc.description.uri | https://pubs.acs.org/doi/10.1021/nl500775p | en |
| dc.format.extent | 19 pages | en |
| dc.genre | journal articles | en |
| dc.genre | preprints | en |
| dc.identifier | doi:10.13016/m2lgke-k6ll | |
| dc.identifier.citation | She, Chunxing, Igor Fedin, Dmitriy S. Dolzhnikov, Arnaud Demortière, Richard D. Schaller, Matthew Pelton, and Dmitri V. Talapin. “Low-Threshold Stimulated Emission Using Colloidal Quantum Wells.” Nano Letters 14, no. 5 (May 14, 2014): 2772–77. https://doi.org/10.1021/nl500775p. | en |
| dc.identifier.uri | https://doi.org/10.1021/nl500775p | |
| dc.identifier.uri | http://hdl.handle.net/11603/29227 | |
| dc.language.iso | en | en |
| dc.publisher | ACS | en |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Nano Letters, copyright © American Chemical Society after peer review. To access the final edited and published work see https://doi.org/10.1021/nl500775p. | en |
| dc.title | Low-Threshold Stimulated Emission Using Colloidal Quantum Wells | en |
| dc.type | Text | en |
| dcterms.creator | https://orcid.org/0000-0002-6370-8765 | en |