Mostrar el registro sencillo del ítem
One- and Two-Photon Absorption in CdS Nanodots and Wires: The Role of Dimensionality in the One- and Two-Photon Luminescence Excitation Spectrum
dc.contributor.author | Achtstein, Alexander W. | |
dc.contributor.author | Ballester Caudet, Ana | |
dc.contributor.author | Movilla, Jose L. | |
dc.contributor.author | Hennig, Jonas | |
dc.contributor.author | Climente, Juan I. | |
dc.contributor.author | Prudnikau, Anatol V. | |
dc.contributor.author | Antanovich, Artsiom | |
dc.contributor.author | Scott, Riccardo | |
dc.contributor.author | Artemyev, Mikhail V. | |
dc.contributor.author | Planelles, Josep | |
dc.contributor.author | Woggon, Ulrike | |
dc.date.accessioned | 2016-04-18T12:35:27Z | |
dc.date.available | 2016-04-18T12:35:27Z | |
dc.date.issued | 2014-12 | |
dc.identifier.citation | ACHTSTEIN, Alexander W., et al. One-and Two-Photon Absorption in CdS Nanodots and Wires: The Role of Dimensionality in the One-and Two-Photon Luminescence Excitation Spectrum. The Journal of Physical Chemistry C, 2014, vol. 119, no 2, p. 1260-1267. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/158852 | |
dc.description.abstract | We investigate the spectral dependence of the linear and two-photon absorption of wurtzite CdS nanoparticles (dots and rods) by means of quantitative one- and two-photon photoluminescence excitation spectroscopy and effective mass theory modeling. Absolute two-photon absorption cross sections free from spectrally varying beam related uncertainties are obtained by means of a new reference dye-based method. The two-photon spectrum features of rods strongly differ from those of dots, due to the distinct energy structure of quasi-one-dimensional systems. The transversal confinement is found to dominate the energy of the absorption maxima while the longitudinal one dominates their absorption intensity. This suggests two-photon transition energy and intensity can be controlled independently in nanorods. For both geometries we observe a sizable spectral shift between the first one- and two-photon absorption maxima, which we conclude is inherent to the small rates of near-bandgap two-photon transitions rather than to the particular geometry of the absorber. The provided understanding of the spectral dependence of the two-photon absorption of CdS dots and rods is of strong interest for the design of nanocrystals with optimized two-photon absorption properties for bioimaging and phototherapy applications. | ca_CA |
dc.description.sponsorShip | .A. and U.W. acknowledge funding by DFG SPP 1165 Nanowires. A.B., J.L.M., J.I.C., and J.P. acknowledge support from MICINN project CTQ-2011-27324 and UJI-BANCAIXA project P1-1B2011-01. A.P. and A.A. acknowledge partial support from ELECTRONICS 2.2.19.3 project. M.A. acknowl- edges partial support from CHEMREAGENTS 1.33 project. | ca_CA |
dc.format.extent | 7 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation.isPartOf | J. Phys. Chem. C, 2015, 119 (2) | ca_CA |
dc.rights | Copyright © 2014 American Chemical Society | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | two-photon absorption | ca_CA |
dc.subject | CdS nanodots | ca_CA |
dc.subject | luminescence | ca_CA |
dc.title | One- and Two-Photon Absorption in CdS Nanodots and Wires: The Role of Dimensionality in the One- and Two-Photon Luminescence Excitation Spectrum | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1021/jp511346w | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.acs.org/doi/abs/10.1021/jp511346w | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
Ficheros en el ítem
Ficheros | Tamaño | Formato | Ver |
---|---|---|---|
No hay ficheros asociados a este ítem. |
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
QFA_Articles [813]
Articles de publicacions periòdiques