Pulsed Laser Deposited Nanostructures

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanofabrication and Nanomanufacturing".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 17838

Special Issue Editor

Special Issue Information

Dear Colleagues,

We are planning a Special Issue of the journal Nanomaterials that may be of interest to you. As Guest Editor, I cordially invite you to submit a manuscript for consideration and possible publication in this Special Issue, entitled “Pulsed Laser Deposited Nanostructures”.

In this Special Issue, the aim is to cover all relevant aspects of laser processing in thin film deposition, nanostructures, nanomaterials, and nanocomposites. Accordingly, this Special Issue welcomes original research and review manuscripts on the challenges and trends covering fundamental and experimental research—from the development of new experimental concepts to the transfer, chemical transformation, high-resolution patterning of advanced nanomaterials to the design and fabrication of devices, applications in catalysis, ecology, and environmental protection.

Dr. Cǎtǎlin Constantinescu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • laser processing
  • nanostructures
  • nanomaterials
  • thin films
  • multilayers
  • nanocomposites

Published Papers (5 papers)

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Research

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11 pages, 15709 KiB  
Article
Direct Epitaxial Growth of Polar Hf0.5Zr0.5O2 Films on Corundum
by Eduardo Barriuso, Panagiotis Koutsogiannis, David Serrate, Javier Herrero-Martín, Ricardo Jiménez, César Magén, Miguel Algueró, Pedro A. Algarabel and José A. Pardo
Nanomaterials 2022, 12(7), 1232; https://doi.org/10.3390/nano12071232 - 06 Apr 2022
Cited by 1 | Viewed by 2245
Abstract
Single-phase epitaxial Hf0.5Zr0.5O2 films with non-centrosymmetric orthorhombic structure have been grown directly on electrode-free corundum (α-Al2O3) substrates by pulsed laser deposition. A combination of high-resolution X-ray diffraction and X-ray absorption spectroscopy confirms the epitaxial [...] Read more.
Single-phase epitaxial Hf0.5Zr0.5O2 films with non-centrosymmetric orthorhombic structure have been grown directly on electrode-free corundum (α-Al2O3) substrates by pulsed laser deposition. A combination of high-resolution X-ray diffraction and X-ray absorption spectroscopy confirms the epitaxial growth of high-quality films belonging to the Pca21 space group, with [111] out-of-plane orientation. The surface of a 7-nm-thick sample exhibits an atomic step-terrace structure with a corrugation of the order of one atomic layer, as proved by atomic force microscopy. Scanning transmission electron microscopy reveals that it consists of grains with around 10 nm lateral size. The polar nature of this film has been corroborated by pyroelectric measurements. These results shed light on the mechanisms of the epitaxial stabilization of the ferroelectric phase of hafnia. Full article
(This article belongs to the Special Issue Pulsed Laser Deposited Nanostructures)
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11 pages, 2940 KiB  
Article
Polarization and Dielectric Properties of BiFeO3-BaTiO3 Superlattice-Structured Ferroelectric Films
by Yuji Noguchi and Hiroki Matsuo
Nanomaterials 2021, 11(7), 1857; https://doi.org/10.3390/nano11071857 - 19 Jul 2021
Cited by 8 | Viewed by 3915
Abstract
Superlattice-structured epitaxial thin films composed of Mn(5%)-doped BiFeO3 and BaTiO3 with a total thickness of 600 perovskite (ABO3) unit cells were grown on single-crystal SrTiO3 substrates by pulsed laser deposition, and their polarization and dielectric properties were investigated. [...] Read more.
Superlattice-structured epitaxial thin films composed of Mn(5%)-doped BiFeO3 and BaTiO3 with a total thickness of 600 perovskite (ABO3) unit cells were grown on single-crystal SrTiO3 substrates by pulsed laser deposition, and their polarization and dielectric properties were investigated. When the layers of Mn-BiFeO3 and BaTiO3 have over 25 ABO3 unit cells (N), the superlattice can be regarded as a simple series connection of their individual capacitors. The superlattices with an N of 5 or less behave as a unified ferroelectric, where the BaTiO3 and Mn-BiFeO3 layers are structurally and electronically coupled. Density functional theory calculations can explain the behavior of spontaneous polarization for the superlattices in this thin regime. We propose that a superlattice formation comprising two types of perovskite layers with different crystal symmetries opens a path to novel ferroelectrics that cannot be obtained in a solid solution system. Full article
(This article belongs to the Special Issue Pulsed Laser Deposited Nanostructures)
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16 pages, 3280 KiB  
Article
Fabrication and Characterization of Transparent and Scratch-Proof Yttrium/Sialon Thin Films
by Amar Kamal Mohamedkhair, Abbas Saeed Hakeem, Qasem Ahmed Drmosh, Abdul Samad Mohammed, Mirza Murtuza Ali Baig, Anwar Ul-Hamid, Mohammed Ashraf Gondal and Zain Hassan Yamani
Nanomaterials 2020, 10(11), 2283; https://doi.org/10.3390/nano10112283 - 18 Nov 2020
Cited by 10 | Viewed by 2497
Abstract
Transparent and amorphous yttrium (Y)/Sialon thin films were successfully fabricated using pulsed laser deposition (PLD). The thin films were fabricated in three steps. First, Y/Sialon target was synthesized using spark plasma sintering technique at 1500 °C in an inert atmosphere. Second, the surface [...] Read more.
Transparent and amorphous yttrium (Y)/Sialon thin films were successfully fabricated using pulsed laser deposition (PLD). The thin films were fabricated in three steps. First, Y/Sialon target was synthesized using spark plasma sintering technique at 1500 °C in an inert atmosphere. Second, the surface of the fabricated target was cleaned by grinding and polishing to remove any contamination, such as graphite and characterized. Finally, thin films were grown using PLD in an inert atmosphere at various substrate temperatures (RT to 500 °C). While the X-ray diffractometer (XRD) analysis revealed that the Y/Sialon target has β phase, the XRD of the fabricated films showed no diffraction peaks and thus confirming the amorphous nature of fabricated thin films. XRD analysis displayed that the fabricated thin films were amorphous while the transparency, measured by UV-vis spectroscopy, of the films, decreased with increasing substrate temperature, which was attributed to a change in film thickness with deposition temperature. X-ray photoelectron spectroscopy (XPS) results suggested that the synthesized Y/Sialon thin films are nearly homogenous and contained all target’s elements. A scratch test revealed that both 300 and 500 °C coatings possess the tough and robust nature of the film, which can resist much harsh loads and shocks. These results pave the way to fabricate different Sialon doped materials for numerous applications. Full article
(This article belongs to the Special Issue Pulsed Laser Deposited Nanostructures)
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9 pages, 2075 KiB  
Article
Printing of Crumpled CVD Graphene via Blister-Based Laser-Induced Forward Transfer
by Maxim S. Komlenok, Pavel A. Pivovarov, Margarita A. Dezhkina, Maxim G. Rybin, Sergey S. Savin, Elena D. Obraztsova and Vitaly I. Konov
Nanomaterials 2020, 10(6), 1103; https://doi.org/10.3390/nano10061103 - 02 Jun 2020
Cited by 14 | Viewed by 3357
Abstract
The patterning and transfer of a two-dimensional graphene film without damaging its original structure is an urgent and difficult task. For this purpose, we propose the use of the blister-based laser-induced forward transfer (BB-LIFT), which has proven itself in the transfer of such [...] Read more.
The patterning and transfer of a two-dimensional graphene film without damaging its original structure is an urgent and difficult task. For this purpose, we propose the use of the blister-based laser-induced forward transfer (BB-LIFT), which has proven itself in the transfer of such delicate materials. The ease of implementation of laser techniques reduces the number of intermediate manipulations with a graphene film, increasing its safety. The work demonstrates the promise of BB-LIFT of single-layer graphene from a metal surface to a SiO2/Si substrate. The effect of the parameters of this method on the structure of transferred graphene islands is investigated. The relevance of reducing the distance between irradiating and receiving substrates for the transfer of free-lying graphene is demonstrated. The reasons for the damage to the integrity of the carbon film observed in the experiments are discussed. The preservation of the original crystal structure of transferred graphene is confirmed by Raman spectroscopy. Full article
(This article belongs to the Special Issue Pulsed Laser Deposited Nanostructures)
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Review

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34 pages, 11028 KiB  
Review
Short-Pulse Lasers: A Versatile Tool in Creating Novel Nano-/Micro-Structures and Compositional Analysis for Healthcare and Wellbeing Challenges
by Ahmed Al-Kattan, David Grojo, Christophe Drouet, Alexandros Mouskeftaras, Philippe Delaporte, Adrien Casanova, Jérôme D. Robin, Frédérique Magdinier, Patricia Alloncle, Catalin Constantinescu, Vincent Motto-Ros and Jörg Hermann
Nanomaterials 2021, 11(3), 712; https://doi.org/10.3390/nano11030712 - 12 Mar 2021
Cited by 19 | Viewed by 4005
Abstract
Driven by flexibility, precision, repeatability and eco-friendliness, laser-based technologies have attracted great interest to engineer or to analyze materials in various fields including energy, environment, biology and medicine. A major advantage of laser processing relies on the ability to directly structure matter at [...] Read more.
Driven by flexibility, precision, repeatability and eco-friendliness, laser-based technologies have attracted great interest to engineer or to analyze materials in various fields including energy, environment, biology and medicine. A major advantage of laser processing relies on the ability to directly structure matter at different scales and to prepare novel materials with unique physical and chemical properties. It is also a contact-free approach that makes it possible to work in inert or reactive liquid or gaseous environment. This leads today to a unique opportunity for designing, fabricating and even analyzing novel complex bio-systems. To illustrate this potential, in this paper, we gather our recent research on four types of laser-based methods relevant for nano-/micro-scale applications. First, we present and discuss pulsed laser ablation in liquid, exploited today for synthetizing ultraclean “bare” nanoparticles attractive for medicine and tissue engineering applications. Second, we discuss robust methods for rapid surface and bulk machining (subtractive manufacturing) at different scales by laser ablation. Among them, the microsphere-assisted laser surface engineering is detailed for its appropriateness to design structured substrates with hierarchically periodic patterns at nano-/micro-scale without chemical treatments. Third, we address the laser-induced forward transfer, a technology based on direct laser printing, to transfer and assemble a multitude of materials (additive structuring), including biological moiety without alteration of functionality. Finally, the fourth method is about chemical analysis: we present the potential of laser-induced breakdown spectroscopy, providing a unique tool for contact-free and space-resolved elemental analysis of organic materials. Overall, we present and discuss the prospect and complementarity of emerging reliable laser technologies, to address challenges in materials’ preparation relevant for the development of innovative multi-scale and multi-material platforms for bio-applications. Full article
(This article belongs to the Special Issue Pulsed Laser Deposited Nanostructures)
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