1
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Lee SY, Serafini P, Masi S, Gualdrón-Reyes AF, Mesa CA, Rodríguez-Pereira J, Giménez S, Lee HJ, Mora-Seró I. A Perovskite Photovoltaic Mini-Module-CsPbBr 3 Photoelectrochemical Cell Tandem Device for Solar-Driven Degradation of Organic Compounds. ACS Energy Lett 2023; 8:4488-4495. [PMID: 37854043 PMCID: PMC10580309 DOI: 10.1021/acsenergylett.3c01361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/27/2023] [Indexed: 10/20/2023]
Abstract
Recently, halide perovskites have been widely explored for high-efficiency photocatalysis or photoelectrochemical (PEC) cells. Here, in order to make an efficient photoanode electrode for the degradation of pollutants, concretely 2-mercaptobenzothiazole (MBT), nanoscale cesium lead bromide (CsPbBr3) perovskite was directly formed on the surface of mesoporous titanium dioxide (meso-TiO2) film using a two-step spin-coating process. This photoelectrode recorded a photocurrent of up to 3.02 ± 0.03 mA/cm2 under standard AM 1.5G (100 mW/cm2) illumination through an optimization process such as introducing a thin aluminum oxide (Al2O3) coating layer. Furthermore, to supply high voltage for efficient oxidation of MBT without an external bias, we developed a new photovoltaic/PEC tandem system using a methylammonium lead iodide (MAPbI3) based mini-module consisting of three solar cells interconnected in series and confirmed its successful operation. This approach looks very promising due to its applicability to various PEC reactions.
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Affiliation(s)
- Seul-Yi Lee
- Department
of Chemistry and Research Institute of Physics & Chemistry, Jeonbuk National University, Jeonju 561-756, South Korea
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
| | - Patricio Serafini
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
| | - Sofia Masi
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
| | - Andrés F. Gualdrón-Reyes
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
- Facultad
de Ciencias, Instituto de Ciencias Químicas, Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Camilo A. Mesa
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
| | - Jhonatan Rodríguez-Pereira
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 53002 Pardubice, Czech Republic
- Central
European Institute of Technology, Brno University
of Technology, Purkynova
123, 612 00 Brno, Czech Republic
| | - Sixto Giménez
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
| | - Hyo Joong Lee
- Department
of Chemistry and Research Institute of Physics & Chemistry, Jeonbuk National University, Jeonju 561-756, South Korea
| | - Iván Mora-Seró
- Institute
of Advanced Materials, Universitat Jaume
I, 12071 Castelló de la Plana, Spain
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2
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Serafini P, Villanueva-Antolí A, Adhikari SD, Masi S, Sánchez RS, Rodriguez-Pereira J, Pradhan B, Hofkens J, Gualdrón-Reyes AF, Mora-Seró I. Increasing the Performance and Stability of Red-Light-Emitting Diodes Using Guanidinium Mixed-Cation Perovskite Nanocrystals. Chem Mater 2023; 35:3998-4006. [PMID: 37251100 PMCID: PMC10210241 DOI: 10.1021/acs.chemmater.3c00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/21/2023] [Indexed: 05/31/2023]
Abstract
Halide perovskite nanocrystals (PNCs) exhibit growing attention in optoelectronics due to their fascinating color purity and improved intrinsic properties. However, structural defects emerging in PNCs progressively hinder the radiative recombination and carrier transfer dynamics, limiting the performance of light-emitting devices. In this work, we explored the introduction of guanidinium (GA+) during the synthesis of high-quality Cs1-xGAxPbI3 PNCs as a promising approach for the fabrication of efficient bright-red light-emitting diodes (R-LEDs). The substitution of Cs by 10 mol % GA allows the preparation of mixed-cation PNCs with PLQY up to 100% and long-term stability for 180 days, stored under air atmosphere and refrigerated condition (4 °C). Here, GA+ cations fill/replace Cs+ positions into the PNCs, compensating intrinsic defect sites and suppressing the nonradiative recombination pathway. LEDs fabricated with this optimum material show an external quantum efficiency (EQE) near to 19%, at an operational voltage of 5 V (50-100 cd/m2) and an operational half-time (t50) increased 67% respect CsPbI3 R-LEDs. Our findings show the possibility to compensate the deficiency through A-site cation addition during the material synthesis, obtaining less defective PNCs for efficient and stable optoelectronic devices.
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Affiliation(s)
- Patricio Serafini
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
| | - Alexis Villanueva-Antolí
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
| | - Samrat Das Adhikari
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
| | - Sofia Masi
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
| | - Rafael S. Sánchez
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
| | - Jhonatan Rodriguez-Pereira
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, 53002 Pardubice, Czech Republic
- Central
European Institute of Technology, Brno University
of Technology, 612 00 Brno, Czech Republic
| | - Bapi Pradhan
- Laboratory
for Photochemistry and Spectroscopy,
Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F − bus
2404, B-3001 Heverlee, Belgium
| | - Johan Hofkens
- Laboratory
for Photochemistry and Spectroscopy,
Molecular Imaging and Photonics, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F − bus
2404, B-3001 Heverlee, Belgium
| | - Andrés F. Gualdrón-Reyes
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
- Facultad
de Ciencias, Instituto de Ciencias Químicas, Isla Teja, Universidad Austral de Chile, 5090000 Valdivia, Chile
| | - Iván Mora-Seró
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, Avenida de Vicent Sos Baynat, s/n, Castelló
de la Plana, Castellón 12071, Spain
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3
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Miralles-Comins S, Zanatta M, Gualdrón-Reyes AF, Rodriguez-Pereira J, Mora-Seró I, Sans V. Polymeric ionic liquid-based formulations for the fabrication of highly stable perovskite nanocrystal composites for photocatalytic applications. Nanoscale 2023; 15:4962-4971. [PMID: 36786242 DOI: 10.1039/d2nr07254h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Halide perovskite nanocrystals (PNCs) have emerged as potential visible-light photocatalysts because of their outstanding intrinsic properties, including high absorption coefficient and tolerance to defects, which reduces non-radiative recombination, and high oxidizing/reducing power coming from their tuneable band structure. Nevertheless, their sensitivity to humidity, light, heat and water represents a great challenge that limits their applications in solar driven photocatalytic applications. Herein, we demonstrate the synergistic potential of embedding PNCs into polymeric ionic liquids (PILs@PS) to fabricate suitable composites for photodegradation of organic dyes. In this context, the stability of the PNCs after polymeric encapsulation was enhanced, showing better light, moisture, water and thermal stability compared to pristine PNCs for around 200 days.
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Affiliation(s)
- Sara Miralles-Comins
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Marcileia Zanatta
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
- Facultad de Ciencias, Instituto de Ciencias Químicas, Isla Teja, Universidad Austral de Chile, 5090000, Valdivia, Chile
| | - Jhonatan Rodriguez-Pereira
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 53002 Pardubice, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkyňova, 123,612 00 Brno, Czech Republic
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Víctor Sans
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
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4
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Pashaei Adl H, Gorji S, Gualdrón-Reyes AF, Mora-Seró I, Suárez I, Martínez-Pastor JP. Enhanced Spontaneous Emission of CsPbI 3 Perovskite Nanocrystals Using a Hyperbolic Metamaterial Modified by Dielectric Nanoantenna. Nanomaterials (Basel) 2022; 13:11. [PMID: 36615920 PMCID: PMC9824778 DOI: 10.3390/nano13010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
In this work, we demonstrate, theoretically and experimentally, a hybrid dielectric-plasmonic multifunctional structure able to provide full control of the emission properties of CsPbI3 perovskite nanocrystals (PNCs). The device consists of a hyperbolic metamaterial (HMM) composed of alternating thin metal (Ag) and dielectric (LiF) layers, covered by TiO2 spherical MIE nanoresonators (i.e., the nanoantenna). An optimum HMM leads to a certain Purcell effect, i.e., an increase in the exciton radiative rate, but the emission intensity is reduced due to the presence of metal in the HMM. The incorporation of TiO2 nanoresonators deposited on the top of the HMM is able to counteract such an undesirable intensity reduction by the coupling between the exciton and the MIE modes of the dielectric nanoantenna. More importantly, MIE nanoresonators result in a preferential light emission towards the normal direction to the HMM plane, increasing the collected signal by more than one order of magnitude together with a further increase in the Purcell factor. These results will be useful in quantum information applications involving single emitters based on PNCs together with a high exciton emission rate and intensity.
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Affiliation(s)
- Hamid Pashaei Adl
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - Setatira Gorji
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - Andrés F. Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avenida de Vicent Sos Baynat, s/n, 12071 Castello de la Plana, Spain
- Facultad de Ciencias Instituto de Ciencias Químicas, Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avenida de Vicent Sos Baynat, s/n, 12071 Castello de la Plana, Spain
| | - Isaac Suárez
- Escuela Técnica Superior de Ingeniería, Universidad de Valencia, 46100 Valencia, Spain
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5
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Serafini P, Gualdrón-Reyes AF, Sánchez RS, Barea EM, Masi S, Mora-Seró I. Balanced change in crystal unit cell volume and strain leads to stable halide perovskite with high guanidinium content. RSC Adv 2022; 12:32630-32639. [PMID: 36425685 PMCID: PMC9661883 DOI: 10.1039/d2ra06473a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/04/2022] [Indexed: 09/02/2023] Open
Abstract
Up-to-date studies propose that strain in halide perovskites is one of the key factors that determine a device's efficiency and stability. Here, we show a systematic approach to characterize the phenomenon in the standard methylammonium lead iodine (MAPbI3) perovskite system by: (i) the substitution of some MA by guanidinium (Gu); (ii) the incorporation of PbS quantum dot (QD) additives and (iii) addition of both Gu and PbS at the same time. We studied the effect of these incorporations on the film strain and crystal cell unit volume, and on the solar cell device efficiency and stability. Gu cations and PbS QDs affect the strain, the former due to the relatively large dimensions of Gu, and the latter due to the lattice matching parameters. With the control of Gu and PbS QD content, higher performance and longer solar cell stability are obtained. We demonstrated that the presence of Gu and PbS QDs alters the structure of perovskite, in terms of modification of the unit cell volume and strain. The greater size of Gu cations produces a MAPbI3 unit cell volume expansion as Gu is incorporated, modifying the strain from compressive to tensile. PbS QDs aid Gu incorporation, producing a unit cell volume expansion. In the case of 15% mol Gu incorporation, the addition of PbS QDs modifies strain from compressive to tensile, limiting the deleterious effect. At the same time the unit cell volume is less affected, increasing the solar cell stability. Our work shows that the control of compressive strain and the unit cell volume expansion lead to a 50% increase in T 80, the time in which the PCE decreases to 80% of its original value, increasing the T 80 value from 120 to 187 days under air conditions. Moreover it highlights the importance of exploiting not only the control of the strain induced by internal component, the cation, but also the strain induced by the external component, the QD, associated instead with critical volume variation of metastable perovskite unit cell volume.
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Affiliation(s)
- Patricio Serafini
- Institute of Advanced Materials (INAM), Universitat Jaume I 12071 Castelló de la Plana Spain
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I 12071 Castelló de la Plana Spain
- Facultad de Ciencias, Instituto de Ciencias Químicas, Universidad Austral de Chile Isla Teja 5090000 Valdivia Chile
| | - Rafael S Sánchez
- Institute of Advanced Materials (INAM), Universitat Jaume I 12071 Castelló de la Plana Spain
| | - Eva M Barea
- Institute of Advanced Materials (INAM), Universitat Jaume I 12071 Castelló de la Plana Spain
| | - Sofia Masi
- Institute of Advanced Materials (INAM), Universitat Jaume I 12071 Castelló de la Plana Spain
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I 12071 Castelló de la Plana Spain
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6
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Canet-Albiach R, Kreĉmarová M, Bailach JB, Gualdrón-Reyes AF, Rodríguez-Romero J, Gorji S, Pashaei-Adl H, Mora-Seró I, Martínez Pastor JP, Sánchez-Royo JF, Muñoz-Matutano G. Revealing Giant Exciton Fine-Structure Splitting in Two-Dimensional Perovskites Using van der Waals Passivation. Nano Lett 2022; 22:7621-7627. [PMID: 36074722 DOI: 10.1021/acs.nanolett.2c02729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Organic-inorganic layered perovskites are currently some of the most promising 2D van der Waals materials. Low crystal quality usually broadens the exciton line width, obscuring the fine structure of the exciton in conventional photoluminescence experiments. Here, we propose a mechanical approach to reducing the effect of spectral diffusion by means of hBN capping on layered perovskites, revealing the exciton fine structure. We used a stochastic model to link the reduction of the spectral line width with the population of charge fluctuation centers present in the organic spacer. van der Waals forces between both lattices cause the partial clamping of the perovskite organic spacer molecules, and hence the amplitude of the overall spectral diffusion effect is reduced. Our work provides a low-cost solution to the problem of accessing important fine-structure excitonic state information, along with an explanation of the important carrier dynamics present in the organic spacer that affect the quality of the optical emission.
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Affiliation(s)
- Rodolfo Canet-Albiach
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - Marie Kreĉmarová
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - José Bosch Bailach
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071 Castelló de la Plana, Spain
- Facultad de Ciencias, Instituto de Ciencias Químicas, Isla Teja, Universidad Austral de Chile, 5090000 Valdivia, Chile
| | - Jesús Rodríguez-Romero
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071 Castelló de la Plana, Spain
- Facultad de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, C.U., Coyoacán, 04510 Mexico City, Mexico
| | - Setatira Gorji
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - Hamid Pashaei-Adl
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071 Castelló de la Plana, Spain
| | - Juan P Martínez Pastor
- Instituto de Ciencia de Materiales, Universidad de Valencia (ICMUV), 46071 Valencia, Spain
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7
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Gualdrón-Reyes AF, Masi S, Mora-Seró I. Progress in halide-perovskite nanocrystals with near-unity photoluminescence quantum yield. Trends in Chemistry 2021. [DOI: 10.1016/j.trechm.2021.03.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Adl H, Gorji S, Habil MK, Suárez I, Chirvony VS, Gualdrón-Reyes AF, Mora-Seró I, Valencia LM, de la Mata M, Hernández-Saz J, Molina SI, Zapata-Rodríguez CJ, Martínez-Pastor JP. Purcell Enhancement and Wavelength Shift of Emitted Light by CsPbI 3 Perovskite Nanocrystals Coupled to Hyperbolic Metamaterials. ACS Photonics 2020; 7:3152-3160. [PMID: 33241076 PMCID: PMC7678722 DOI: 10.1021/acsphotonics.0c01219] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Indexed: 05/28/2023]
Abstract
Manipulation of the exciton emission rate in nanocrystals of lead halide perovskites (LHPs) was demonstrated by means of coupling of excitons with a hyperbolic metamaterial (HMM) consisting of alternating thin metal (Ag) and dielectric (LiF) layers. Such a coupling is found to induce an increase of the exciton radiative recombination rate by more than a factor of three due to the Purcell effect when the distance between the quantum emitter and HMM is nominally as small as 10 nm, which coincides well with the results of our theoretical analysis. Besides, an effect of the coupling-induced long wavelength shift of the exciton emission spectrum is detected and modeled. These results can be of interest for quantum information applications of single emitters on the basis of perovskite nanocrystals with high photon emission rates.
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Affiliation(s)
- Hamid
Pashaei Adl
- Instituto
de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José
Beltrán 2, 46980 Paterna, Spain
| | - Setatira Gorji
- 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
- Departamento
de Ingeniería Electrónica, Escuela Técnica
Superior de Ingeniería, Universidad
de Valencia, Avenida
de la Universidad s/n, 46100 Burjassot, 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), Universitat
Jaume I (UJI), Avenida de Vicent Sos Baynat s/n, 12071 Castelló de la Plana, Spain
| | - Iván Mora-Seró
- Institute
of Advanced Materials (INAM), Universitat
Jaume I (UJI), Avenida de Vicent Sos Baynat s/n, 12071 Castelló de la Plana, Spain
| | - Luisa M. Valencia
- Departamento de Ciencia de
los Materiales e IM
y QI. F. Ciencias, IMEYMAT, Campus Río San Pedro, Universidad de Cádiz, 11510 Puerto Real
(Cádiz), Spain
| | - María de la Mata
- Departamento de Ciencia de
los Materiales e IM
y QI. F. Ciencias, IMEYMAT, Campus Río San Pedro, Universidad de Cádiz, 11510 Puerto Real
(Cádiz), Spain
| | - Jesús Hernández-Saz
- Departamento
de Ingeniería y Ciencia de los Materiales y del Transporte,
Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino Descubrimientos, s/n.- Isla Cartuja, 41092 Sevilla, Spain
| | - Sergio I. Molina
- Departamento de Ciencia de
los Materiales e IM
y QI. F. Ciencias, IMEYMAT, Campus Río San Pedro, Universidad de Cádiz, 11510 Puerto Real
(Cádiz), Spain
| | - Carlos J. Zapata-Rodríguez
- Departament
d’Òptica i Optometria i Ciències de la Visió,
Facultad de Física, Universitat
de València, C/Dr
Moliner 50, 46100 Burjassot, Spain
| | - Juan P. Martínez-Pastor
- Instituto
de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José
Beltrán 2, 46980 Paterna, Spain
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Erazo EA, Sánchez-Godoy H, Gualdrón-Reyes AF, Masi S, Mora-Seró I. Photo-Induced Black Phase Stabilization of CsPbI 3 QDs Films. Nanomaterials (Basel) 2020; 10:E1586. [PMID: 32806684 PMCID: PMC7466586 DOI: 10.3390/nano10081586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 01/22/2023]
Abstract
α-CsPbI3 quantum dots (QDs) show outstanding photoelectrical properties that had been harnessed in the fabrication of perovskite QDs solar cells. Nevertheless, the stabilization of the CsPbI3 perovskite cubic phase remains a challenge due to its own thermodynamic and the presence of surface defects. Herein, we report the optimization of the CsPbI3 QDs solar cells, by monitoring the structure, the morphology and the optoelectronic properties after a precise treatment, consisting of the conventional solvent washing with a time limited ultraviolet (UV) exposure combination, during the layer-by-layer deposition. The UV treatment compensates the defects coming from the essential but deleterious washing treatment. The material is stable for 200 h and the PCE improved by the 25% compared with that of the device without UV treatment. The photo-enhanced ion mobility mechanism is discussed as the main process for the CsPbI3 QDs and solar cell stability.
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Affiliation(s)
- Eider A. Erazo
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
- Departamento de Química, Universidad de los Andes, Bogotá D.C. 111711, Colombia
| | - H.E. Sánchez-Godoy
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno, Jalisco C.P. 47460, Mexico
| | - Andrés F. Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
| | - Sofia Masi
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
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10
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Hassanabadi E, Latifi M, Gualdrón-Reyes AF, Masi S, Yoon SJ, Poyatos M, Julián-López B, Mora-Seró I. Ligand & band gap engineering: tailoring the protocol synthesis for achieving high-quality CsPbI 3 quantum dots. Nanoscale 2020; 12:14194-14203. [PMID: 32602873 DOI: 10.1039/d0nr03180a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hot-injection has become the most widespread method used for the synthesis of perovskite quantum dots (QDs) with enormous interest for application in optoelectronic devices. However, there are some aspects of the chemistry involved in this synthesis that have not been completely investigated. In this work, we synthesized ultra-high stable CsPbI3 QDs for more than 15 months by controlling two main parameters: synthesis temperature and the concentration of capping ligands. By increasing the capping ligand concentration during the QD synthesis, we were able to grow CsPbI3 in a broad range of temperatures, improving the photophysical properties of QDs by increasing the synthesis temperature. We achieved the maximum photoluminescence quantum yield (PLQY) of 93% for a synthesis conducted at 185 °C, establishing an efficient surface passivation to decrease the density of non-radiative recombination sites. Under these optimized synthesis conditions, deep red LEDs with an External Quantum Efficiency (EQE) higher than 6% were achieved. The performance of these LEDs is higher than that of the reported CsPbI3 QD-LEDs containing standard capping agents, without additional elements or further element exchange. We show that it is possible to produce stable CsPbI3 QDs with high PLQY and red emission beyond the requirement of the Rec. 2020 standards for red color.
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Affiliation(s)
- Ehsan Hassanabadi
- Institute of Advanced Materials (INAM), University Jaume I, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Castellón, Spain.
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11
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Carreño-Lizcano M, Gualdrón-Reyes AF, Rodríguez-González V, Pedraza-Avella J, Niño-Gómez M. Photoelectrocatalytic phenol oxidation employing nitrogen doped TiO2-rGO films as photoanodes. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Gualdrón-Reyes AF, Rodríguez-Pereira J, Amado-González E, Rueda-P J, Ospina R, Masi S, Yoon SJ, Tirado J, Jaramillo F, Agouram S, Muñoz-Sanjosé V, Giménez S, Mora-Seró I. Unravelling the Photocatalytic Behavior of All-Inorganic Mixed Halide Perovskites: The Role of Surface Chemical States. ACS Appl Mater Interfaces 2020; 12:914-924. [PMID: 31805231 DOI: 10.1021/acsami.9b19374] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Within the most mesmerizing materials in the world of optoelectronics, mixed halide perovskites (MHPs) have been distinguished because of the tunability of their optoelectronic properties, balancing both the light-harvesting efficiency and the charge extraction into highly efficient solar devices. This feature has drawn the attention of analogous hot topics as photocatalysis for carrying out more efficiently the degradation of organic compounds. However, the photo-oxidation ability of perovskite depends not only on its excellent light-harvesting properties but also on the surface chemical environment provided during its synthesis. Accordingly, we studied the role of surface chemical states of MHP-based nanocrystals (NCs) synthesized by hot-injection (H-I) and anion-exchange (A-E) approaches on their photocatalytic (PC) activity for the oxidation of β-naphthol as a model system. We concluded that iodide vacancies are the main surface chemical states that facilitate the formation of superoxide ions, O2●-, which are responsible for the PC activity in A-E-MHP. Conversely, the PC performance of H-I-MHP is related to the appropriate balance between band gap and a highly oxidizing valence band. This work offers new insights on the surface properties of MHP related to their catalytic activity in photochemical applications.
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Affiliation(s)
- Andrés F Gualdrón-Reyes
- Laboratorio de Biocombustibles Lab-IBEAR, Facultad de Ciencias Básicas , Universidad de Pamplona , Pamplona , Norte de Santander 543050 , Colombia
- Institute of Advanced Materials (INAM) , Universitat Jaume I (UJI) , Avenida de Vicent Sos Baynat, s/n , 12071 Castellón de la Plana , Spain
| | - Jhonatan Rodríguez-Pereira
- Centro de Investigación Científica y Tecnológica en Materiales y Nanociencias (CMN) , Universidad Industrial de Santander , Piedecuesta , Santander 681011 , Colombia
| | - Eliseo Amado-González
- Laboratorio de Biocombustibles Lab-IBEAR, Facultad de Ciencias Básicas , Universidad de Pamplona , Pamplona , Norte de Santander 543050 , Colombia
| | - Jorge Rueda-P
- Grupo de Óptica Moderna, Facultad de Ciencias Básicas , Universidad de Pamplona , Pamplona, Pamplona , Norte de Santander 543050 , Colombia
| | - Rogelio Ospina
- Centro de Investigación Científica y Tecnológica en Materiales y Nanociencias (CMN) , Universidad Industrial de Santander , Piedecuesta , Santander 681011 , Colombia
| | - Sofia Masi
- Institute of Advanced Materials (INAM) , Universitat Jaume I (UJI) , Avenida de Vicent Sos Baynat, s/n , 12071 Castellón de la Plana , Spain
| | - Seog Joon Yoon
- Institute of Advanced Materials (INAM) , Universitat Jaume I (UJI) , Avenida de Vicent Sos Baynat, s/n , 12071 Castellón de la Plana , Spain
- Department of Chemistry, College of Natural Science , Yeungnam University , 280 Daehak-Ro, Gyeongsan , Gyeongbuk 38541 , Republic of Korea
| | - Juan Tirado
- Centro de Investigación, Innovación y Desarrollo de Materiales CIDEMAT , Universidad de Antioquia UdeA , Calle 70 No. 52-21 , Medellín 1226 , Colombia
| | - Franklin Jaramillo
- Centro de Investigación, Innovación y Desarrollo de Materiales CIDEMAT , Universidad de Antioquia UdeA , Calle 70 No. 52-21 , Medellín 1226 , Colombia
| | - Said Agouram
- Department of Applied Physics and Electromagnetism , University of Valencia (UV) , 46100 Valencia , Spain
- Materials for Renewable Energy (MAER) , Unitat Mixta d'Investigació UV-UJI , 46010 Valencia , Spain
| | - Vicente Muñoz-Sanjosé
- Department of Applied Physics and Electromagnetism , University of Valencia (UV) , 46100 Valencia , Spain
- Materials for Renewable Energy (MAER) , Unitat Mixta d'Investigació UV-UJI , 46010 Valencia , Spain
| | - Sixto Giménez
- Institute of Advanced Materials (INAM) , Universitat Jaume I (UJI) , Avenida de Vicent Sos Baynat, s/n , 12071 Castellón de la Plana , Spain
- Materials for Renewable Energy (MAER) , Unitat Mixta d'Investigació UV-UJI , 46010 Valencia , Spain
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM) , Universitat Jaume I (UJI) , Avenida de Vicent Sos Baynat, s/n , 12071 Castellón de la Plana , Spain
- Materials for Renewable Energy (MAER) , Unitat Mixta d'Investigació UV-UJI , 46010 Valencia , Spain
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13
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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/suppl_file/jz9b02369_si_001.pdf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
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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14
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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15
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Navarro-Arenas J, Suárez I, Martínez-Pastor JP, Ferrando A, Gualdrón-Reyes AF, Mora-Seró I, Gao SF, Wang YY, Wang P, Sun Z. Optical Amplification in Hollow-Core Negative-Curvature Fibers Doped with Perovskite CsPbBr 3 Nanocrystals. Nanomaterials (Basel) 2019; 9:E868. [PMID: 31181630 PMCID: PMC6631229 DOI: 10.3390/nano9060868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/02/2019] [Accepted: 06/03/2019] [Indexed: 11/16/2022]
Abstract
We report a hollow-core negative-curvature fiber (HC-NCF) optical signal amplifier fabricated by the filling of the air microchannels of the fiber with all-inorganic CsPbBr3 perovskite nanocrystals (PNCs). The optimum fabrication conditions were found to enhance the optical gain, up to +3 dB in the best device. Experimental results were approximately reproduced by a gain assisted mechanism based on the nonlinear optical properties of the PNCs, indicating that signal regeneration can be achieved under low pump powers, much below the threshold of stimulated emission. The results can pave the road of new functionalities of the HC-NCF with PNCs, such as optical amplification, nonlinear frequency conversion and gas sensors.
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Affiliation(s)
- Juan Navarro-Arenas
- Instituto de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain.
| | - Isaac Suárez
- Instituto de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain.
- Escuela de Ingenieros de Telecomunicación, Universidad Rey Juan Carlos, Camino del Molino s/n E 28942 Fuenlabrada, Spain.
| | - Juan P Martínez-Pastor
- Instituto de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain.
| | - Albert Ferrando
- Departament d'Òptica i Optometria i Ciències de la Visió, Universitat de València, Dr Moliner, 50, 46100 Burjassot, Valencia, Spain.
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM), University Jaume I, Avenida de Vicent Sos Baynat, s/n, 12006 Castelló de la Plana, Castellón, Spain.
- Biofuels Lab-IBEAR, Faculty of Basic Sciences, University of Pamplona, 543050 Pamplona, Colombia.
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), University Jaume I, Avenida de Vicent Sos Baynat, s/n, 12006 Castelló de la Plana, Castellón, Spain.
| | - Shou-Fei Gao
- Beijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, 100124 Beijing, China.
| | - Ying-Ying Wang
- Beijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, 100124 Beijing, China.
| | - Pu Wang
- Beijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, 100124 Beijing, China.
| | - Zhipei Sun
- Department of Electronics and Nanoengineering, Aalto University, Tietotie 3, 02150 Espoo, Finland.
- QTF Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland.
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16
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Cardenas-Morcoso D, Gualdrón-Reyes AF, Ferreira Vitoreti AB, García-Tecedor M, Yoon SJ, Solis de la Fuente M, Mora-Seró I, Gimenez S. Photocatalytic and Photoelectrochemical Degradation of Organic Compounds with All-Inorganic Metal Halide Perovskite Quantum Dots. J Phys Chem Lett 2019; 10:630-636. [PMID: 30673244 DOI: 10.1021/acs.jpclett.8b03849] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Inspired by the outstanding optoelectronic properties reported for all-inorganic halide perovskite quantum dots (QDs), we have evaluated the potential of these materials toward the photocatalytic and photoelectrochemical degradation of organic compounds, taking the oxidation of 2-mercaptobenzothiazole (MBT) as a proof-of-concept. First, we determined electrochemically the energy levels of dispersions of perovskite QDs with different band gaps induced by the different ratios between halides (Br and I) and metallic cations (Pb and Sn). Then, we selected CsPbBr3 QDs to demonstrate the photocatalytic and photoelectrochemical oxidation of MBT, confirming that hole injection takes place from CsPbBr3 QDs to MBT, resulting in the total degradation of MBT as evidenced by electrospray mass spectrometry analyses. Although the stability and toxicity of these QDs are major issues to address in the near future, the results obtained in the present study open promising perspectives for the implementation of solar-driven catalytic strategies based on these fascinating materials.
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Affiliation(s)
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM) , Universitat Jaume I , 12006 Castelló , Spain
- Centro de Investigaciones en Catálisis (CICAT) , Universidad Industrial de Santander , Sede UIS Guatiguará, Piedecuesta , Santander , Colombia C.P. 681011
- Centro de Investigación Científica y Tecnológica en Materiales y Nanociencias (CMN) , Universidad Industrial de Santander , Piedecuesta , Santander , Colombia C.P. 681011
| | - Ana Beatriz Ferreira Vitoreti
- Institute of Advanced Materials (INAM) , Universitat Jaume I , 12006 Castelló , Spain
- Department of Natural Science , Federal University of São João del-Rei , 36301-160 São João del-Rei , Brazil
- CAPES Foundation , Ministry of Education of Brazil , Brasília 70040-020 , Brazil
| | - Miguel García-Tecedor
- Institute of Advanced Materials (INAM) , Universitat Jaume I , 12006 Castelló , Spain
| | - Seog Joon Yoon
- Institute of Advanced Materials (INAM) , Universitat Jaume I , 12006 Castelló , Spain
| | - Mauricio Solis de la Fuente
- Lawrence Berkeley National Laboratory , Energy Technologies Area, 1 Cyclotron Road , Berkeley , California 94720 , United States
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM) , Universitat Jaume I , 12006 Castelló , Spain
| | - Sixto Gimenez
- Institute of Advanced Materials (INAM) , Universitat Jaume I , 12006 Castelló , Spain
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17
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Gualdrón-Reyes AF, Meléndez AM, Tirado J, Mejia-Escobar MA, Jaramillo F, Niño-Gómez ME. Hidden energy levels? Carrier transport ability of CdS/CdS 1-xSe x quantum dot solar cells impacted by Cd-Cd level formation. Nanoscale 2019; 11:762-774. [PMID: 30566154 DOI: 10.1039/c8nr07073c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In quantum dot sensitized solar cells (QDSSC), a cascade energy level structure controlled by assembly of cadmium-chalcogenide quantum dots can remarkably improve the sunlight harvesting and charge carrier lifetime. Despite the advantages of using co-sensitizers, energy conversion efficiencies are still low. An increased understanding of the causes of the low photoconversion efficiency (PCE) will contribute to the development of a straightforward approach to improve solar cell performance by exploiting co-sensitization. Herein we discuss how an excess of cadmium causes structural disorder and defect levels impacting the PCE of QDSSC devices. Thus, outer CdS1-xSex/inner CdS QD-co-sensitized B,N,F-co-doped-TiO2 nanotubes (BNF-TNT) were prepared. Chalcogenides were deposited by the SILAR method on BNF-TNT, varying the load of CdS as the inner sensitizer, while for CdS1-xSex, five SILAR cycles were used (5-CdS1-xSex), controlling the nominal S/Se molar ratio of the ternary alloy. Cd defects named as Cd-Cd energy levels were observed during CdS sensitization. Although incorporation of outer CdS1-xSex provides a tunable band gap to achieve good band alignment for carrier separation, Cd-Cd energy levels in the sensitizers act as recombination centers, limiting the overall electron flow at the BNF-TNT/CdS/CdS1-xSex interface. A maximum PCE of 2.58% was reached under standard AM 1.5G solar illumination at 100 mW cm-2. Additional limitations of SILAR as a deposition strategy of QDs are also found to influence the PCE of QDSSC.
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Affiliation(s)
- Andrés F Gualdrón-Reyes
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Sede UIS Guatiguará, Piedecuesta, Santander, C.P. 681011, Colombia.
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18
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R. de Melo J, Gualdrón-Reyes AF, Camargo Fernandes NR, Gimenes ML, Carreño-Lizcano MI, Sequeda-Pico IN, Rodríguez-Pereira J, Baldovino-Medrano V, Niño-Gómez ME. How does the Zn-precursor nature impact carrier transfer in ZnO/Zn-TiO 2 nanostructures? organic vs. inorganic anions. NEW J CHEM 2019. [DOI: 10.1039/c9nj04097h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The carrier transport capability of ZnO/Zn-TiO2 nanostructures is affected by Zn-precursor anions, generating donor, acceptor and interfacial energy states.
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Affiliation(s)
- Joelma R. de Melo
- Universidade Estadual de Maringá
- Departamento de Engenharia Química
- Maringá 87020-900
- Brazil
| | - Andrés F. Gualdrón-Reyes
- Centro de Investigaciones en Catálisis (CICAT)
- Universidad Industrial de Santander
- Sede UIS Guatiguará
- Piedecuesta
- Colombia
| | | | - Marcelino L. Gimenes
- Universidade Estadual de Maringá
- Departamento de Engenharia Química
- Maringá 87020-900
- Brazil
| | - María I. Carreño-Lizcano
- Centro de Investigaciones en Catálisis (CICAT)
- Universidad Industrial de Santander
- Sede UIS Guatiguará
- Piedecuesta
- Colombia
| | - Ingrid N. Sequeda-Pico
- Centro de Investigaciones en Catálisis (CICAT)
- Universidad Industrial de Santander
- Sede UIS Guatiguará
- Piedecuesta
- Colombia
| | - Jhonatan Rodríguez-Pereira
- Centro de Investigaciones en Catálisis (CICAT)
- Universidad Industrial de Santander
- Sede UIS Guatiguará
- Piedecuesta
- Colombia
| | - Victor Baldovino-Medrano
- Centro de Investigaciones en Catálisis (CICAT)
- Universidad Industrial de Santander
- Sede UIS Guatiguará
- Piedecuesta
- Colombia
| | - Martha E. Niño-Gómez
- Centro de Investigaciones en Catálisis (CICAT)
- Universidad Industrial de Santander
- Sede UIS Guatiguará
- Piedecuesta
- Colombia
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Gualdrón-Reyes AF, Cárdenas-Arenas A, Martínez CA, Kouznetsov VV, Meléndez AM. Fabrication of transparent TiO2 nanotube-based photoanodes for CdS/CdTe quantum co-sensitized solar cells. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/786/1/012044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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20
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Mancilla FJ, Rojas SF, Gualdrón-Reyes AF, Carreño-Lizcano MI, Duarte LJ, Niño-Gómez ME. Improving the photoelectrocatalytic performance of boron-modified TiO2/Ti sol–gel-based electrodes for glycerol oxidation under visible illumination. RSC Adv 2016. [DOI: 10.1039/c6ra02806c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
B-TiO2 photoelectrodes showed a high photoelectrocatalytic performance under visible illumination due to efficient electron transport and charge carrier separation.
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Affiliation(s)
- Federico J. Mancilla
- Centro de Investigaciones en Catálisis – CICAT
- Universidad Industrial de Santander
- Piedecuesta
- Colombia
| | - Silvia F. Rojas
- Centro de Investigaciones en Catálisis – CICAT
- Universidad Industrial de Santander
- Piedecuesta
- Colombia
| | - Andrés F. Gualdrón-Reyes
- Centro de Investigaciones en Catálisis – CICAT
- Universidad Industrial de Santander
- Piedecuesta
- Colombia
| | - María I. Carreño-Lizcano
- Centro de Investigaciones en Catálisis – CICAT
- Universidad Industrial de Santander
- Piedecuesta
- Colombia
| | - Liseth J. Duarte
- Centro de Investigaciones en Catálisis – CICAT
- Universidad Industrial de Santander
- Piedecuesta
- Colombia
| | - M. E. Niño-Gómez
- Centro de Investigaciones en Catálisis – CICAT
- Universidad Industrial de Santander
- Piedecuesta
- Colombia
- Centro de Materiales y Nanociencias (CMN)
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