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Navarro-Arenas J, Suárez I, Chirvony VS, Gualdrón-Reyes AF, Mora-Seró I, Martínez-Pastor J. Single-Exciton Amplified Spontaneous Emission in Thin Films of CsPbX 3 (X = Br, I) Perovskite Nanocrystals. J Phys Chem Lett 2019; 10:6389-6398. [PMID: 31545904 DOI: 10.1021/acs.jpclett.9b02369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
CsPbX3 perovskite nanocrystals (PNCs) have emerged as an excellent material for stimulated emission purposes, with even more prospective applications than conventional colloidal quantum dots. However, a better understanding of the physical mechanisms responsible for amplified spontaneous emission (ASE) is required to achieve more ambitious targets (lasing under continuous wave optical or electrical excitation). Here, we establish the intrinsic mechanisms underlying ASE in PNCs of three different band gaps (CsPbBr3, CsPbBr1.5I1.5, and CsPbI3). Our characterization at cryogenic temperatures does not reveal any evidence of the biexciton mechanism in the formation of ASE. Instead, the measured shift toward long wavelengths of the ASE band is easily explained by the reabsorption in the PNC layer, which becomes stronger for thicker layers. In this way, the threshold of ASE is determined only by optical losses at a given geometry, which is the single-exciton mechanism responsible for ASE. Experimental results are properly reproduced by a physical model.
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Affiliation(s)
- Juan Navarro-Arenas
- Instituto de Ciencia de Materiales (ICMUV) , Universidad de Valencia , C/Catedrático José Beltrán, 2 , 46980 Paterna , Spain
| | - Isaac Suárez
- Instituto de Ciencia de Materiales (ICMUV) , Universidad de Valencia , C/Catedrático José Beltrán, 2 , 46980 Paterna , Spain
- ETSI Telecomunicación , Universidad Rey Juan Carlos , C/Camino del Molino s/n , 28943 Fuenlabrada , Spain
| | - Vladimir S Chirvony
- Instituto de Ciencia de Materiales (ICMUV) , Universidad de Valencia , C/Catedrático José Beltrán, 2 , 46980 Paterna , Spain
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM) , University Jaume I , Avenida de Vicent Sos Baynat, s/n , 12071 Castelló de la Plana , Castellón , Spain
- Biofuels Lab-IBEAR, Faculty of Basic Sciences , University of Pamplona , Pamplona C.P. 543050 , Colombia
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM) , University Jaume I , Avenida de Vicent Sos Baynat, s/n , 12071 Castelló de la Plana , Castellón , Spain
| | - Juan Martínez-Pastor
- Instituto de Ciencia de Materiales (ICMUV) , Universidad de Valencia , C/Catedrático José Beltrán, 2 , 46980 Paterna , Spain
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Muñoz-Matutano G, Barrera D, Fernández-Pousa CR, Chulia-Jordan R, Seravalli L, Trevisi G, Frigeri P, Sales S, Martínez-Pastor J. All-Optical Fiber Hanbury Brown &Twiss Interferometer to study 1300 nm single photon emission of a metamorphic InAs Quantum Dot. Sci Rep 2016; 6:27214. [PMID: 27257122 PMCID: PMC4891669 DOI: 10.1038/srep27214] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 05/17/2016] [Indexed: 11/09/2022] Open
Abstract
New optical fiber based spectroscopic tools open the possibility to develop more robust and efficient characterization experiments. Spectral filtering and light reflection have been used to produce compact and versatile fiber based optical cavities and sensors. Moreover, these technologies would be also suitable to study N-photon correlations, where high collection efficiency and frequency tunability is desirable. We demonstrated single photon emission of a single quantum dot emitting at 1300 nm, using a Fiber Bragg Grating for wavelength filtering and InGaAs Avalanche Photodiodes operated in Geiger mode for single photon detection. As we do not observe any significant fine structure splitting for the neutral exciton transition within our spectral resolution (46 μeV), metamorphic QD single photon emission studied with our all-fiber Hanbury Brown & Twiss interferometer could lead to a more efficient analysis of entangled photon sources at telecom wavelength. This all-optical fiber scheme opens the door to new first and second order interferometers to study photon indistinguishability, entangled photon and photon cross correlation in the more interesting telecom wavelengths.
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Affiliation(s)
- G Muñoz-Matutano
- ITEAM Research Institute, Universidad Politécnica de Valencia, C/Camino de Vera s/n, E-46022, Valencia, Spain.,Instituto de Ciencia de los Materiales, Universitat de València, PO Box 22085, E-46071 Valencia, Spain
| | - D Barrera
- ITEAM Research Institute, Universidad Politécnica de Valencia, C/Camino de Vera s/n, E-46022, Valencia, Spain
| | - C R Fernández-Pousa
- Departamento de Ingeniería de Comunicaciones, Universidad Miguel Hernández, Avenida Universidad s/n, E-03202 Elche, Spain
| | - R Chulia-Jordan
- Instituto de Ciencia de los Materiales, Universitat de València, PO Box 22085, E-46071 Valencia, Spain
| | - L Seravalli
- CNR-IMEM Institute, Parco delle Scienze 37a, I-43100 Parma, Italy
| | - G Trevisi
- CNR-IMEM Institute, Parco delle Scienze 37a, I-43100 Parma, Italy
| | - P Frigeri
- CNR-IMEM Institute, Parco delle Scienze 37a, I-43100 Parma, Italy
| | - S Sales
- ITEAM Research Institute, Universidad Politécnica de Valencia, C/Camino de Vera s/n, E-46022, Valencia, Spain
| | - J Martínez-Pastor
- Instituto de Ciencia de los Materiales, Universitat de València, PO Box 22085, E-46071 Valencia, Spain
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Seravalli L, Trevisi G, Muñoz-Matutano G, Rivas D, Martinez-Pastor J, Frigeri P. Sub-critical InAs layers on metamorphic InGaAs for single quantum dot emission at telecom wavelengths. CRYSTAL RESEARCH AND TECHNOLOGY 2014. [DOI: 10.1002/crat.201300395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Luca Seravalli
- IMEM-CNR; Parco Area delle Scienze; 37/a I-43100 Parma Italy
| | | | | | - David Rivas
- Instituto de Ciencia de los Materiales; Universitat de València; P.O. Box 22085 46071 Valencia Spain
| | - Juan Martinez-Pastor
- Instituto de Ciencia de los Materiales; Universitat de València; P.O. Box 22085 46071 Valencia Spain
| | - Paola Frigeri
- IMEM-CNR; Parco Area delle Scienze; 37/a I-43100 Parma Italy
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