2024-03-28T15:20:37Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2002472021-12-07T10:53:19Zcom_10261_98com_10261_3col_10261_351
Localized surface plasmon effects on the photophysics of perovskite thin films embedding metal nanoparticles
bayles, Aaron
Carretero-Palacios, Sol
Calió, Laura
Lozano, Gabriel
Calvo, Mauricio E.
Míguez, Hernán
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
bayles, Aaron [0000-0001-7396-7800]
Caliò, Laura [0000-0002-7394-9263]
Lozano, Gabriel [0000-0002-0235-4924]
Calvo, Mauricio E. [0000-0002-1721-7260]
Míguez, Hernán [0000-0003-2925-6360]
Herein we provide direct experimental evidence that proves that the photophysical properties of thin methylammonium lead iodide perovskite films are significantly enhanced by localized surface plasmon resonances (SPRs). Observations are well supported by rigorous calculations that prove that improved light harvesting can be unequivocally attributed to plasmonic scattering and near field reinforcement effects around silver nanoparticles embedded within the semiconductor layer. Adequate design of the localized SPR allows raising the absorptance of a 300 nm thick film at well-defined spectral regions while minimizing the parasitic absorption from the metallic inclusions. Measured enhancements can be as large as 80% at specific wavelengths and 20% when integrated over the whole range at which SPR occurs, in agreement with theoretical estimations. Simultaneously, the characteristic quenching effect that the vicinity of metals has on the photoluminescence of semiconductors is largely compensated for by the combined effect of the enhanced photoexcitation and the higher local density of photon states occurring at SPR frequencies, with a two fold increase of the perovskite photoemission efficiency being measured.
The research leading to these results has received funding from the Spanish Ministry of Economy and Competitiveness under grant MAT2017-88584-R (AEI/FEDER,UE). A. B. was supported by the U. S. Department of State through the Fulbright Program. S. C. P. is grateful for the support of the AEI under the Juan de la Cierva Incorporación programme (IJCI-2016-28549).
We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI).
2020-02-11T09:47:41Z
2020-02-11T09:47:41Z
2020
2020-02-11T09:47:41Z
artículo
http://purl.org/coar/resource_type/c_6501
Journal of Materials Chemistry C 8(3) 916-921 (2020)
2050-7526
http://hdl.handle.net/10261/200247
10.1039/C9TC05785D
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100003339
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-88584-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2016-28549
Publisher's version
http://dx.doi.org/10.1039/C9TC05785D
Sí
open
Royal Society of Chemistry (UK)