Special Issue "Synthesis and Applications of Nanomaterials Based on Perovskites"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: 15 March 2021.

Special Issue Editor

Dr. Raquel E. Galian
Website
Guest Editor
Institute of Molecular Science (ICMOL), University of Valencia, Valencia, Spain
Interests: photoactive nanoparticles; quantum dots; surface chemistry; perovskites nanomaterials; photochemistry; photocatalysis
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Special Issue Information

Dear Colleagues,

Metal halide perovskites have shown tremendous development in the photovoltaic technologies due to their intrinsic properties such as high absorption coefficient in the visible region, long carrier diffusion lengths, low cost of processability, among others. Since their first use for solar cell applications in 2009, they have demonstrated a fast expansion in the photovoltaic community, reaching nowadays a power conversion efficiency above 23%.

In 2014, the first preparation of metal halide perovskites as luminescent colloidal nanocrystals revolutionized nanomaterials science. An impressive progress has been made during the last years, from fundamental research towards innovative applications of these nanomaterials in perovskite light-emitting devices (pLED), lasing devices, detectors, and more recently, photocatalysis. Colloidal perovskite nanomaterials display outstanding optical and electronic properties, including broad absorption spectra and very narrow luminescence, high luminescent quantum yield and excellent band gap tunability depending on the cation or anion nature, size, and temperature. Moreover, the fine-tuning of the molar ratio between perovskite precursors and organic ligands allows the preparation of perovskite nanomaterials with different crystalline dimensionality and thus different optical properties. Several attempts to increase their stability towards humidity, heat, and light have been reported, but more investigations are necessary to reach practical applications.

This Special Issue of Nanomaterials aims to cover the most recent advances in the synthetic approaches for the preparation of hybrid and all-inorganic metal halide perovskite nanomaterials with different stoichiometries, shapes, and composition in order to enhance their performance and stability towards environmental factors. Novel or improved applications of the perovskite nanomaterials in different areas are welcome.

Dr. Raquel E. Galian
Guest Editor

Manuscript Submission Information

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Keywords

  • Colloidal perovskites
  • Lead-free perovskite nanomaterials
  • Electroluminescent devices based on perovskite nanomaterials
  • Stable perovskite nanocrystals
  • Perovskite nanostructures for photovoltaic and energy storage

Published Papers (7 papers)

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Research

Open AccessArticle
Design of Novel Perovskite-Based Polymeric Poly(l-Lactide-Co-Glycolide) Nanofibers with Anti-Microbial Properties for Tissue Engineering
Nanomaterials 2020, 10(6), 1127; https://doi.org/10.3390/nano10061127 - 07 Jun 2020
Abstract
There is a growing need for anti-microbial materials in several biomedical application areas, such are hernia, skin grafts as well as gynecological products, owing to the complications caused by infection due to surgical biomaterials. The anti-microbial effects of silver in the form of [...] Read more.
There is a growing need for anti-microbial materials in several biomedical application areas, such are hernia, skin grafts as well as gynecological products, owing to the complications caused by infection due to surgical biomaterials. The anti-microbial effects of silver in the form of nanoparticles, although effective, can be toxic to surrounding cells. In this study, we report, for the first time, a novel biomedical application of Ag0.3Na1.7La2Ti3O10-layered perovskite particles, blended with poly(L-lactide-co-glycolide) (PLGA), aimed at designing anti-microbial and tissue engineering scaffolds. The perovskite was incorporated in three concentrations of 1, 5, 10 and 15 w/w% and electrospun using dimethylformamide (DMF) and chloroform. The morphology of the resultant nanofibers revealed fiber diameters in the range of 408 to 610 nm by scanning electron microscopy. Mechanical properties of perovskite-based nanofibers also matched similar mechanical properties to human skin. We observed impressive anti-microbial activity, against Gram-negative, Gram-positive bacteria and even fungi, to Ag0.3Na1.7La2Ti3O10 in powder as well as nanofiber-incorporated forms. Furthermore, cytotoxicity assay and immunocytochemistry revealed that perovskite-based nanofibers promoted the proliferation of human dermal fibroblasts whist maintaining normal cellular protein expression. Our study shows that perovskite-nanofibers have potential as scaffolds for biomedical applications with anti-microbial needs. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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Open AccessArticle
Vapor-Phase Photocatalytic Overall Water Splitting Using Hybrid Methylammonium Copper and Lead Perovskites
Nanomaterials 2020, 10(5), 960; https://doi.org/10.3390/nano10050960 - 18 May 2020
Cited by 1
Abstract
Films or powders of hybrid methylammonium copper halide perovskite exhibit photocatalytic activity for overall water splitting in the vapor phase in the absence of any sacrificial agent, resulting in the generation of H2 and O2, reaching a maximum production rate [...] Read more.
Films or powders of hybrid methylammonium copper halide perovskite exhibit photocatalytic activity for overall water splitting in the vapor phase in the absence of any sacrificial agent, resulting in the generation of H2 and O2, reaching a maximum production rate of 6 μmol H2 × g cat−1h−1 efficiency. The photocatalytic activity depends on the composition, degreasing all inorganic Cs2CuCl2Br2 perovskite and other Cl/Br proportions in the methylammonium hybrids. XRD indicates that MA2CuCl2Br2 is stable under irradiation conditions in agreement with the linear H2 production with the irradiation time. Similar to copper analogue, hybrid methylammonium lead halide perovskites also promote the overall photocatalytic water splitting, but with four times less efficiency than the Cu analogues. The present results show that, although moisture is strongly detrimental to the photovoltaic applications of hybrid perovskites, it is still possible to use these materials as photocatalysts for processes requiring moisture due to the lack of relevance in the photocatalytic processes of interparticle charge migration. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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Open AccessCommunication
Facile Synthesis of FAPbI3 Nanorods
Nanomaterials 2020, 10(1), 72; https://doi.org/10.3390/nano10010072 - 29 Dec 2019
Cited by 4
Abstract
Metal halide perovskites are promising materials for a range of applications. The synthesis of light-emitting perovskite nanorods has become popular recently. Thus far, the facile synthesis of perovskite nanorods remains elusive. In this work, we have developed a facile synthesis to fabricate FAPbI [...] Read more.
Metal halide perovskites are promising materials for a range of applications. The synthesis of light-emitting perovskite nanorods has become popular recently. Thus far, the facile synthesis of perovskite nanorods remains elusive. In this work, we have developed a facile synthesis to fabricate FAPbI3 nanorods for the first time, demonstrating a high photoluminescence quantum yield of 35–42%. The fabrication of the nanorods has been made possible by carefully tuning the concentration of formamidine-oleate as well as the amount of oleic acid with pre-dissolved PbI2 in toluene with oleic acid/oleylamine. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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Open AccessArticle
Facile Synthesis of Methylammonium Lead Iodide Perovskite with Controllable Morphologies with Enhanced Luminescence Performance
Nanomaterials 2019, 9(12), 1660; https://doi.org/10.3390/nano9121660 - 21 Nov 2019
Cited by 2
Abstract
Organic–inorganic hybrid perovskites with well-defined morphology have attracted much attention due to their unique photophysical properties. However, controlling the morphology of nanocrystalline perovskite to improve its photoelectric application remains a challenge. In this article, using a modified solution deposition method, we successfully synthesized [...] Read more.
Organic–inorganic hybrid perovskites with well-defined morphology have attracted much attention due to their unique photophysical properties. However, controlling the morphology of nanocrystalline perovskite to improve its photoelectric application remains a challenge. In this article, using a modified solution deposition method, we successfully synthesized uniform methylammonium lead iodide (MAPbI3) nanoplates, nanocubes, and nanorods and investigated the effect of morphology on the photoelectric properties of these materials. We found that the morphology can be controlled by regulating the amounts of reactant methylammonium iodide (MAI) and the rate at which MAPbI3 precursor is added into toluene solution, and that the corresponding size distributions can be optimized by tuning the final vacuum-drying temperature. The morphology has an obvious effect on the bandgap optimization and fluorescence enhancement of MAPbI3, and the nanoplates exhibit stronger photoluminescence intensity and have a longer carrier lifetime than nanocubes and nanorods. The results show that the morphologies of MAPbI3 perovskite nanocrystals can be controlled by tuning the synthesizing conditions, and the MAPbI3 perovskite nanocrystals with special morphology can be used in special nanosize optoelectronic devices. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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Open AccessArticle
Enhancing the Photovoltaic Performance of Perovskite Solar Cells Using Plasmonic [email protected]@Au Core-Shell Nanoparticles
Nanomaterials 2019, 9(9), 1263; https://doi.org/10.3390/nano9091263 - 05 Sep 2019
Cited by 4
Abstract
[email protected]@Au core-shell nanoparticles, synthesized through chemical reduction, are utilized to improve the photoelectric performance of perovskite solar cells (PSCs) in which carbon films are used as the counter electrode, and the hole-transporting layer is not used. After a series of experiments, these [email protected]@Au [...] Read more.
[email protected]@Au core-shell nanoparticles, synthesized through chemical reduction, are utilized to improve the photoelectric performance of perovskite solar cells (PSCs) in which carbon films are used as the counter electrode, and the hole-transporting layer is not used. After a series of experiments, these [email protected]@Au core-shell nanoparticles are optimized and demonstrate outstanding optical and electrical properties due to their local surface plasmon resonance and scattering effects. PSC devices containing 1 wt.% [email protected]@Au core-shell nanoparticles have the highest efficiency; this is attributable to their significant light trapping and utilization capabilities, which are the result of the distinctive structure of the nanoparticles. The power conversion efficiency of PSCs, with an optimal content of plasmonic nanoparticles (1 wt.%), increased 8.1%, compared to normal PSCs, which was from 12.4% to 13.4%; their short-circuit current density also increased by 5.4%, from 20.5 mA·cm−2 to 21.6 mA·cm−2. The open-circuit voltages remaining are essentially unchanged. When the number of [email protected]@Au core-shell nanoparticles in the mesoporous TiO2 layer increases, the photovoltaic parameters of the former shows a downward trend due to the recombination of electrons and holes, as well as the decrease in electron transporting pathways. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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Open AccessArticle
MAPbI3 Incorporated with Carboxyl Group Chelated Titania for Planar Perovskite Solar Cells in Low-Temperature Process
Nanomaterials 2019, 9(6), 908; https://doi.org/10.3390/nano9060908 - 23 Jun 2019
Cited by 3
Abstract
Low-temperature, solution-processed, highly efficient hybrid organic/inorganic perovskite planar heterojunction solar cells were fabricated by incorporating reactive crystalline titania (h-TAc) into MAPbI3 layers. The h-TAc was prepared by the sol-gel reaction at low temperature followed by solvothermal treatment. The photoelectrical properties of the [...] Read more.
Low-temperature, solution-processed, highly efficient hybrid organic/inorganic perovskite planar heterojunction solar cells were fabricated by incorporating reactive crystalline titania (h-TAc) into MAPbI3 layers. The h-TAc was prepared by the sol-gel reaction at low temperature followed by solvothermal treatment. The photoelectrical properties of the solar cells with h-TAc were analyzed. The incorporation with 0.85-wt% h-TAc showed the highest power conversion efficiency (PCE, 15.9%), increasing 69% compared to the pristine cell. The enhancement arose from large-grained microstructures, leading to a low rate of charge recombination. The carboxyl groups chelated on the surface of h-TAc revealed a strong attraction to lead ions, which are significantly helpful to MAPbI3 crystal growth. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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Open AccessArticle
Facile Synthesis and Optical Properties of CsPbX3/ZIF-8 Composites for Wide-Color-Gamut Display
Nanomaterials 2019, 9(6), 832; https://doi.org/10.3390/nano9060832 - 31 May 2019
Cited by 8
Abstract
All-inorganic CsPbX3 (X = Cl, Br, and I) perovskite quantum dots (QDs), an emerging type of luminescent materials, have drawn extensive attention in recent years. However, the amelioration of their stability is becoming a critical issue. Herein, we present a facile and [...] Read more.
All-inorganic CsPbX3 (X = Cl, Br, and I) perovskite quantum dots (QDs), an emerging type of luminescent materials, have drawn extensive attention in recent years. However, the amelioration of their stability is becoming a critical issue. Herein, we present a facile and efficient approach to prepare novel perovskite QDs/metal–organic frameworks (CsPbX3/ZIF-8) composites under ambient-atmospheric conditions. The obtained composites exhibit better properties including high photoluminescence (PL) quantum yields (QYs) (41.2% for green and 34.8% for red), narrow-band emission (20 nm for green and 31 nm for red), and enhanced stability in comparison to bare QDs. Furthermore, their application in a remote-type white-light-emitting device was explored and a wide color gamut (~137% of the National Television System Committee standard) was achieved, verifying that these novel luminescent composites have great prospect in backlight display application. Full article
(This article belongs to the Special Issue Synthesis and Applications of Nanomaterials Based on Perovskites)
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