Enhanced nanoscopy of individual CsPbBr3 perovskite nanocrystals using dielectric sub-micrometric antennas

Anno: 2020

Autori: Subrez I., Wood T., Pastor JPM., Balestri D., Checcucci S., David T., Favre L., Claude JB., Grosso D., Gualdrun-Reyes AF., Mora-Seru I., Abbarchi M., Gurioli M.

Affiliazione autori: Univ Valencia, Inst Ciencia Mat, UMDO, Valencia 46071, Spain; Univ Rey Juan Carlos, Escuela Tecn Super Ingenieros Telecom, Madrid 28943, Spain; Ecole Cent Lyon, CNRS, UMR 5270, Inst Nanotechnol Lyon, F-69134 Ecully, France; European Lab Nonlinear Spect LENS, I-50019 Sesto Fiorentino, Italy; Univ Firenze, Dipartimento Fis Astron, I-50019 Sesto Fiorentino, Italy; Aix Marseille Univ, Univ Toulon, IM2NP, CNRS, Marseille, France; Univ Jaume 1, Inst Adv Mat INAM, Ave Vicent Sos Baynat S-N, Castellon de La Plana 12071, Spain; Univ Ind Santander, Ctr Invest Catalisis CICAT, Santander 681011, Colombia; Univ Pamplona, Fac Basic Sci, Biofuels Lab IBEAR, Pamplona 543050, Colombia; INO CNR, Via G Moruzzi, I-56124 Pisa, Italy; X FAB France SAS 224, Blvd John Kennedy, F-91105 Corbeil Essonnes, France.

Abstract: We demonstrate an efficient, simple, and low-cost approach for enhanced nanoscopy in individual green emitting perovskite (CsPbBr3) nanocrystals via TiO2 dielectric nanoantenna. The observed three- to five-fold emission enhancement is attributed to near-field effects and emission steering promoted by the coupling between the perovskite nanocrystals and the dielectric sub-micrometric antennas. The dark-field scattering configuration is then exploited for surface-enhanced absorption measurements, showing a large increase in detection sensitivity, leading to the detection of individual nanocrystals. Due to the broadband spectral response of the Mie sub-micrometric antennas, the method can be easily extended to electronic transitions in other spectral regions, paving the way for absorption nanoscopy of many different quantum emitters from organic molecules to quantum dots. (C) 2020 Author(s).

Giornale/Rivista: APL MATERIALS

Volume: 8 (2)      Da Pagina: 21109-1  A: 21109-10

Maggiori informazioni: The authors acknowledge funding from the Spanish MICINN (Grant No. TEC2017-86102-C2-1-R), Laserlab-Europe ARES (No. 654148) funded by the European Union, the PRCI network ULYSSES (No. ANR-15-CE24-0027-01) funded by the French ANR agency, the A*MIDEX foundation (ANR-11-IDEX-0001-02), the A* MIDEX Project TITANIDE (No. A-M-AAP-EI-17-58-17022816.21-ABBARCHI-SAT), and the Prometeo/2018/098 (Q-Devices) funded by Generalitat Valenciana and the FET-OPEN project NAR-CISO (No. 828890). S.C. acknowledges the COST action (MP1403). M.G. acknowledges the CNRS (France) for supporting his permanence at the IM2NP Institute of Marseille. We acknowledge the facilities of the NANOTECMAT platform at the IM2NP Institute and of the microscopy center CP2M of Aix-Marseille University.
Parole chiavi: Halide Perovskites; Photoluminescence; Emission; Absorption; Resonances; Molecules
DOI: 10.1063/1.5142225

Citazioni: 8
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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