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Loizos M, Rogdakis K, Luo W, Zimmermann P, Hinderhofer A, Lukić J, Tountas M, Schreiber F, Milić JV, Kymakis E. Resistive switching memories with enhanced durability enabled by mixed-dimensional perfluoroarene perovskite heterostructures. NANOSCALE HORIZONS 2024; 9:1146-1154. [PMID: 38767026 PMCID: PMC11195346 DOI: 10.1039/d4nh00104d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 05/03/2024] [Indexed: 05/22/2024]
Abstract
Hybrid halide perovskites are attractive candidates for resistive switching memories in neuromorphic computing applications due to their mixed ionic-electronic conductivity. Moreover, their exceptional optoelectronic characteristics make them effective as semiconductors in photovoltaics, opening perspectives for self-powered memory elements. These devices, however, remain unexploited, which is related to the variability in their switching characteristics, weak endurance, and retention, which limit their performance and practical use. To address this challenge, we applied low-dimensional perovskite capping layers onto 3D mixed halide perovskites using two perfluoroarene organic cations, namely (perfluorobenzyl)ammonium and (perfluoro-1,4-phenylene)dimethylammonium iodide, forming Ruddlesden-Popper and Dion-Jacobson 2D perovskite phases, respectively. The corresponding mixed-dimensional perovskite heterostructures were used to fabricate resistive switching memories based on perovskite solar cell architectures, showing that the devices based on perfluoroarene heterostructures exhibited enhanced performance and stability in inert and ambient air atmosphere. This opens perspectives for multidimensional perovskite materials in durable self-powered memory elements in the future.
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Affiliation(s)
- Michalis Loizos
- Department of Electrical & Computer Engineering, Hellenic Mediterranean University (HMU), Heraklion 71410, Crete, Greece.
| | - Konstantinos Rogdakis
- Department of Electrical & Computer Engineering, Hellenic Mediterranean University (HMU), Heraklion 71410, Crete, Greece.
- Institute of Emerging Technologies (i-EMERGE) of HMU Research Center, Heraklion 71410, Crete, Greece
| | - Weifan Luo
- Adolphe Merkle Institute, University of Fribourg, Fribourg 1700, Switzerland.
| | - Paul Zimmermann
- Institute of Applied Physics, University of Tübingen, Tübingen 72076, Germany
| | | | - Jovan Lukić
- Adolphe Merkle Institute, University of Fribourg, Fribourg 1700, Switzerland.
| | - Marinos Tountas
- Department of Electrical & Computer Engineering, Hellenic Mediterranean University (HMU), Heraklion 71410, Crete, Greece.
| | - Frank Schreiber
- Institute of Applied Physics, University of Tübingen, Tübingen 72076, Germany
| | - Jovana V Milić
- Adolphe Merkle Institute, University of Fribourg, Fribourg 1700, Switzerland.
| | - Emmanuel Kymakis
- Department of Electrical & Computer Engineering, Hellenic Mediterranean University (HMU), Heraklion 71410, Crete, Greece.
- Institute of Emerging Technologies (i-EMERGE) of HMU Research Center, Heraklion 71410, Crete, Greece
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2
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Duan Y, Li S, Gu K, Kuang Z, Xu S, Zhang J. Multicolor tunable persistent luminescence mechanism in well-designed inorganic composites. OPTICS LETTERS 2024; 49:3251-3254. [PMID: 38824376 DOI: 10.1364/ol.522446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 05/16/2024] [Indexed: 06/03/2024]
Abstract
Herein, by ball milling CsPb(Br/I)3 quantum dot glass powder with Sr2MgSi2O7:Eu2+, Dy3+ phosphor, multicolor tunable long persistent luminescence (LPL) in inorganic composites with more than 700 min attenuation time can be obtained via a radiation photon reabsorption process. Attractively, the wide color gamut of LPL spectra overlaps the National Television System Committee space 74%. Notably, the luminescence intensity remains stable when the inorganic composites are composed with UV light for 100 h. Finally, practical anticounterfeiting application is successfully realized based on the prepared LPL inorganic composites. This work provides a new, to the best of our knowledge, perspective to achieve polychromatic adjustment of LPL.
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Dragosli F, Konidakis I, Stratakis E. Phosphate Glass Microspheres with Silver Nanoparticles for Whispering Gallery Mode Resonators. ACS APPLIED NANO MATERIALS 2024; 7:11170-11175. [PMID: 38910963 PMCID: PMC11190994 DOI: 10.1021/acsanm.4c00652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/24/2024] [Accepted: 04/30/2024] [Indexed: 06/25/2024]
Abstract
Glass microspheres have gained significant attention over the years in the field of photonics due to their application in whispering gallery mode (WGM) microresonator platforms. However, the synthesis of glass spheres in the micro regime remains challenging, while it relies mostly on complicated synthetic methods or sol-gel chemistry. Herein, we demonstrate the controlled formation of phosphate glass microspheres by means of a simple, fast, low-temperature, post-glass melting thermal treatment of previously quenched glass. Moreover, we report on the simultaneous formation of silver nanoparticles (AgNPs) on the surface of glass spheres upon the same treatment. The formation of metal nanoparticles onto the glass spheres induces attractive optical and plasmonic properties, believed to be suitable for WGM resonator-based applications, as well as a wide range of optoelectronic, photonic, and sensing applications.
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Affiliation(s)
- Foteini Dragosli
- Foundation for Research and
Technology-Hellas (FORTH), Institute of
Electronic Structure and Laser (IESL), 70013 Heraklion-Crete, Greece
| | - Ioannis Konidakis
- Foundation for Research and
Technology-Hellas (FORTH), Institute of
Electronic Structure and Laser (IESL), 70013 Heraklion-Crete, Greece
| | - Emmanuel Stratakis
- Foundation for Research and
Technology-Hellas (FORTH), Institute of
Electronic Structure and Laser (IESL), 70013 Heraklion-Crete, Greece
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Reitz B, Evertz A, Basten R, Wurz MC, Overmeyer L. Integrated multimode optical waveguides in glass using laser induced deep etching. APPLIED OPTICS 2024; 63:895-903. [PMID: 38437385 DOI: 10.1364/ao.506670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/14/2023] [Indexed: 03/06/2024]
Abstract
Glass is an ideal material for optical applications, even though only a few micromachining technologies for material ablation are available. These microstructuring methods are limited regarding precision and freedom of design. A micromachining process for glass is laser induced deep etching (LIDE). Without generating micro-cracks, introducing stress, or other damages, it can precisely machine many types of glass. This work uses LIDE to subtractive manufacture structures in glass carrier substrates. Due to its transmission characteristics and refractive index, the glass substrate serves as optical cladding for polymer waveguides. In this paper, the described fabrication process can be divided into two sub-steps. The doctor blade technique and subsequent additive process step is used in manufacturing cavities with U-shaped cross-sections in glass in order to fill the trenches with liquid optical polymers, which are globally UV-cured. Based on the higher refractive index of the polymer, it enables optical waveguiding in the visible to near-infrared wavelength range. This novel, to the best of our knoowledge, manufacturing method is called LDB (LIDE-doctor-blade); it can be the missing link between long-distance transmissions and on-chip solutions on the packaging level. For validation, optical waveguides are examined regarding their geometrical dimensions, surface roughness, and waveguiding ability, such as intensity distribution and length-dependent attenuation.
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Kamau S, Rodriguez RG, Jiang Y, Mondragon AH, Varghese S, Hurley N, Kaul A, Cui J, Lin Y. Enhanced Photoluminescence and Prolonged Carrier Lifetime through Laser Radiation Hardening and Self-Healing in Aged MAPbBr 3 Perovskites Encapsulated in NiO Nanotubes. MICROMACHINES 2023; 14:1706. [PMID: 37763869 PMCID: PMC10534348 DOI: 10.3390/mi14091706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023]
Abstract
Organic-inorganic perovskites hold great promise as optoelectronic semiconductors for pure color light emitting and photovoltaic devices. However, challenges persist regarding their photostability and chemical stability, which limit their extensive applications. This paper investigates the laser radiation hardening and self-healing-induced properties of aged MAPbBr3 perovskites encapsulated in NiO nanotubes (MAPbBr3@NiO) using photoluminescence (PL) and fluorescence lifetime imaging (FLIM). After deliberately subjecting the MAPbBr3@ NiO to atmospheric conditions for two years, the sample remains remarkably stable. It exhibits no changes in PL wavelength during UV laser irradiation and self-healing. Furthermore, exposure to UV light at 375 nm enhances the PL of the self-healed MAPbBr3@NiO. FLIM analysis sheds light on the mechanism behind photodegradation, self-healing, and PL enhancement. The results indicate the involvement of many carrier-trapping states with low lifetime events and an increase in peak lifetime after self-healing. The formation of trapping states at the perovskite/nanotube interface is discussed and tested. This study provides new insights into the dynamics of photo-carriers during photodegradation and self-healing in organic-inorganic perovskites.
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Affiliation(s)
- Steve Kamau
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Roberto Gonzalez Rodriguez
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Yan Jiang
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Araceli Herrera Mondragon
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Sinto Varghese
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Noah Hurley
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Anupama Kaul
- Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA;
- Department of Electrical Engineering, University of North Texas, Denton, TX 76203, USA
| | - Jingbiao Cui
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
| | - Yuankun Lin
- Department of Physics, University of North Texas, Denton, TX 76203, USA; (S.K.); (R.G.R.); (Y.J.); (A.H.M.); (S.V.); (N.H.); (J.C.)
- Department of Electrical Engineering, University of North Texas, Denton, TX 76203, USA
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Saleem MI, Katware A, Amin A, Jung SH, Lee JH. YCl 3-Substituted CsPbI 3 Perovskite Nanorods for Efficient Red-Light-Emitting Diodes. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1366. [PMID: 37110951 PMCID: PMC10141025 DOI: 10.3390/nano13081366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Cesium lead iodide (CsPbI3) perovskite nanocrystals (NCs) are a promising material for red-light-emitting diodes (LEDs) due to their excellent color purity and high luminous efficiency. However, small-sized CsPbI3 colloidal NCs, such as nanocubes, used in LEDs suffer from confinement effects, negatively impacting their photoluminescence quantum yield (PLQY) and overall efficiency. Here, we introduced YCl3 into the CsPbI3 perovskite, which formed anisotropic, one-dimensional (1D) nanorods. This was achieved by taking advantage of the difference in bond energies among iodide and chloride ions, which caused YCl3 to promote the anisotropic growth of CsPbI3 NCs. The addition of YCl3 significantly improved the PLQY by passivating nonradiative recombination rates. The resulting YCl3-substituted CsPbI3 nanorods were applied to the emissive layer in LEDs, and we achieved an external quantum efficiency of ~3.16%, which is 1.86-fold higher than the pristine CsPbI3 NCs (1.69%) based LED. Notably, the ratio of horizontal transition dipole moments (TDMs) in the anisotropic YCl3:CsPbI3 nanorods was found to be 75%, which is higher than the isotropically-oriented TDMs in CsPbI3 nanocrystals (67%). This increased the TDM ratio and led to higher light outcoupling efficiency in nanorod-based LEDs. Overall, the results suggest that YCl3-substituted CsPbI3 nanorods could be promising for achieving high-performance perovskite LEDs.
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Affiliation(s)
| | - Amarja Katware
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Al Amin
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Seo-Hee Jung
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Jeong-Hwan Lee
- 3D Convergence Center, Inha University, Incheon 22212, Republic of Korea
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea
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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, SWITZERLAND) 2022; 13:11. [PMID: 36615920 PMCID: PMC9824778 DOI: 10.3390/nano13010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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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2D Material and Perovskite Heterostructure for Optoelectronic Applications. NANOMATERIALS 2022; 12:nano12122100. [PMID: 35745439 PMCID: PMC9228184 DOI: 10.3390/nano12122100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/06/2022] [Accepted: 06/16/2022] [Indexed: 02/06/2023]
Abstract
Optoelectronic devices are key building blocks for sustainable energy, imaging applications, and optical communications in modern society. Two-dimensional materials and perovskites have been considered promising candidates in this research area due to their fascinating material properties. Despite the significant progress achieved in the past decades, challenges still remain to further improve the performance of devices based on 2D materials or perovskites and to solve stability issues for their reliability. Recently, a novel concept of 2D material/perovskite heterostructure has demonstrated remarkable achievements by taking advantage of both materials. The diverse fabrication techniques and large families of 2D materials and perovskites open up great opportunities for structure modification, interface engineering, and composition tuning in state-of-the-art optoelectronics. In this review, we present comprehensive information on the synthesis methods, material properties of 2D materials and perovskites, and the research progress of optoelectronic devices, particularly solar cells and photodetectors which are based on 2D materials, perovskites, and 2D material/perovskite heterostructures with future perspectives.
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