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Nanomaterials
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Applications of Metal Halide Perovskites in Optoelectronic Devices
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Applications of Metal Halide Perovskites in Optoelectronic Devices

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 18531

Special Issue Editor

Dr. Isaac Suárez

E-Mail Website
Guest Editor
Engineering School, University of Valencia, Avenida de la Universidad s/n, 46100 Burjassot, Valencia, Spain
Interests: plasmonics; active photonics; polymers; halide perovskites; nonlinear optics

Special Issue Information

Dear Colleagues,

Metal halide perovskites (MHPs) have arisen as emergent semiconductors with outstanding prospects to construct a new generation of optoelectronic devices. From the earliest publications, MHPs have always demonstrated sharp band edges, a quantum yield of emission at room temperature close to 90%, high electronic mobilities, or strong nonlinear coefficients among other properties. In this way, MHPs have demonstrated extraordinary conversion efficiencies, ultralow thresholds of stimulated emission, and efficient light-emitting diodes or photodetectors. This Special Issue of Nanomaterials will include new research about the development of new MHP-based optoelectronic devices, comprising new fabrication technologies, device characterization, or the implementation of novel functionalities. The format of welcomed articles includes full papers, communications, and reviews. Potential topics include, but are not limited to:

  • New fabrication technologies
  • Waveguides based on MHPs
  • Laser and amplifiers
  • Photodetectors and solar cells
  • Nonlinear photonic devices

Dr. Isaac Suárez
Guest Editor

Manuscript Submission Information

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Keywords

  • metal halide perovskite
  • lasers and optical amplifiers
  • light emitting diodes
  • nonlinear devices
  • photodetectors
  • solution process materials

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Published Papers (5 papers)

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Research

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11 pages, 2172 KiB  
Article
Enhanced Spontaneous Emission of CsPbI3 Perovskite Nanocrystals Using a Hyperbolic Metamaterial Modified by Dielectric Nanoantenna
by Hamid Pashaei Adl, Setatira Gorji, Andrés F. Gualdrón-Reyes, Iván Mora-Seró, Isaac Suárez and Juan P. Martínez-Pastor
Nanomaterials 2023, 13(1), 11; https://doi.org/10.3390/nano13010011 - 20 Dec 2022
Cited by 2 | Viewed by 2252
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Applications of Metal Halide Perovskites in Optoelectronic Devices)
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22 pages, 7042 KiB  
Article
On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH3NH3PbBr3) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
by Ulrich Johannes Bahnmüller, Henning Kuper, Tobias Seewald, Yenal Yalҫinkaya, Jörg August Becker, Lukas Schmidt-Mende, Stefan A. L. Weber and Sebastian Polarz
Nanomaterials 2021, 11(11), 3057; https://doi.org/10.3390/nano11113057 - 13 Nov 2021
Cited by 5 | Viewed by 2660
Abstract
Hybrid perovskite materials are one of the most promising candidates for optoelectronic applications, e.g., solar cells and LEDs, which can be produced at low cost compared to established materials. Although this field of research has seen a huge upsurge in the past decade, [...] Read more.
Hybrid perovskite materials are one of the most promising candidates for optoelectronic applications, e.g., solar cells and LEDs, which can be produced at low cost compared to established materials. Although this field of research has seen a huge upsurge in the past decade, there is a major lack in understanding the underlying processes, such as shape-property relationships and the role of defects. Our aerosol-assisted synthesis pathway offers the possibility to obtain methylammonium lead bromide (MAPbBr3) microcrystals from a liquid single source precursor. The differently shaped particles are aligned on several substrates, without using a directing agent or other additives. The obtained particles show good stability under dry conditions. This allows us to characterize these materials and their pure surfaces at the single-crystal level using time- and spatially resolved methods, without any influences of size-dependent effects. By optimizing the precursor for the aerosol process, we were able to eliminate any purification steps and use the materials as processed. In addition, we performed theoretical simulations to deepen the understanding of the underlying processes in the formation of the different crystal facets and their specific properties. The model system presented provides insights into the shape-related properties of MAPbBr3 single crystals and their directed but ligand-free synthesis. Full article
(This article belongs to the Special Issue Applications of Metal Halide Perovskites in Optoelectronic Devices)
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13 pages, 2093 KiB  
Article
Reducing Defects in Organic-Lead Halide Perovskite Film by Delayed Thermal Annealing Combined with KI/I2 for Efficient Perovskite Solar Cells
by Kun-Mu Lee, Shun-Hsiang Chan, Wei-Hao Chiu, Seoungjun Ahn, Chang-Chieh Ting, Yin-Hsuan Chang, Vembu Suryanarayanan, Ming-Chung Wu and Ching-Yuan Liu
Nanomaterials 2021, 11(6), 1607; https://doi.org/10.3390/nano11061607 - 18 Jun 2021
Cited by 7 | Viewed by 4352
Abstract
This study improved quality of CH3NH3PbI3 (MAPbI3) perovskite films by delaying thermal annealing in the spin coating process and introducing KI and I2 to prepare MAPbI3 films that were low in defects for high-efficiency [...] Read more.
This study improved quality of CH3NH3PbI3 (MAPbI3) perovskite films by delaying thermal annealing in the spin coating process and introducing KI and I2 to prepare MAPbI3 films that were low in defects for high-efficiency perovskite solar cells. The influences of delayed thermal annealing time after coating the MAPbI3 perovskite layer on the crystallized perovskite, the morphology control of MAPbI3 films, and the photoelectric conversion efficiency of solar cells were investigated. The optimal delayed thermal annealing time was found to be 60 min at room temperature. The effect of KI/I2 additives on the growth of MAPbI3 films and the corresponding optimal delayed thermal annealing time were further investigated. The addition of KI/I2 can improve perovskite crystallinity, and the conductivity and carrier mobility of MAPbI3 films. Under optimized conditions, the photoelectric conversion efficiency of MAPbI3 perovskite solar cells can reach 19.36% under standard AM1.5G solar illumination of 100 mW/cm2. Full article
(This article belongs to the Special Issue Applications of Metal Halide Perovskites in Optoelectronic Devices)
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9 pages, 8741 KiB  
Article
Fabrication of Perovskite Film-Coated Hollow Capillary Fibers Using a Fast Solvent Exchange Method
by Xuesong Li, Pan Zeng, Qiongrong Ou and Shuyu Zhang
Nanomaterials 2021, 11(6), 1483; https://doi.org/10.3390/nano11061483 - 3 Jun 2021
Cited by 4 | Viewed by 2771
Abstract
Metal halide perovskites have been successfully applied in a variety of fields such as LEDs, lasers and solar cells, thanks to their excellent optoelectronic properties. Capillary fibers can further expand the range of perovskite applications and at the same time improve its stability [...] Read more.
Metal halide perovskites have been successfully applied in a variety of fields such as LEDs, lasers and solar cells, thanks to their excellent optoelectronic properties. Capillary fibers can further expand the range of perovskite applications and at the same time improve its stability by encapsulating the perovskite inside the capillary. However, the high-quality perovskite film-coated hollow capillary fibers have yet to be realized. Here, we introduce a fast solvent exchange method which is used for the preparation of neat and smooth perovskite films deposited on the inner surface of capillary fibers. We demonstrate that this fast solvent exchange method is superior to the commonly used spontaneous diffusion-based precipitation method. The obtained hollow capillary fibers show a narrowed spectral width of 4.9 nm under pulse excitation due to the optical cavity effect. This new fabrication method can facilitate the development of perovskites in the fields of capillary lasing, microfluidic sensing, flexible LEDs and luminous fabrics. Full article
(This article belongs to the Special Issue Applications of Metal Halide Perovskites in Optoelectronic Devices)
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Review

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28 pages, 13003 KiB  
Review
Efficient and Stable Perovskite Solar Cells Based on Inorganic Hole Transport Materials
by Helen Hejin Park
Nanomaterials 2022, 12(1), 112; https://doi.org/10.3390/nano12010112 - 30 Dec 2021
Cited by 25 | Viewed by 5337
Abstract
Although power conversion efficiencies of organic-inorganic lead halide perovskite solar cells (PSCs) are approaching those of single-crystal silicon solar cells, the working device stability due to internal and external factors, such as light, temperature, and moisture, is still a key issue to address. [...] Read more.
Although power conversion efficiencies of organic-inorganic lead halide perovskite solar cells (PSCs) are approaching those of single-crystal silicon solar cells, the working device stability due to internal and external factors, such as light, temperature, and moisture, is still a key issue to address. The current world-record efficiency of PSCs is based on organic hole transport materials, which are usually susceptible to degradation from heat and diffusion of dopants. A simple solution would be to replace the generally used organic hole transport layers (HTLs) with a more stable inorganic material. This review article summarizes recent contributions of inorganic hole transport materials to PSC development, focusing on aspects of device performance and long-term stability. Future research directions of inorganic HTLs in the progress of PSC research and challenges still remaining will also be discussed. Full article
(This article belongs to the Special Issue Applications of Metal Halide Perovskites in Optoelectronic Devices)
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