Solution Processing and Properties of Oxide Films and Nanostructures

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 576

Special Issue Editors

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Guest Editor
Department of Applied Physics, National University of Kaohsiung, Kaohsiung 81148, Taiwan
Interests: oxide films; nanomaterials

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Guest Editor
Department of Electronic Engineering, I-Shou University, Kaohsiung 84001, Taiwan
Interests: metal-oxide-semiconductor technology; high-speed semiconductor devices; semiconductor manufacturing technology
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Special Issue Information

Dear Colleagues,

In recent years, significant progress has been made in the synthesis of a wide range of advanced inorganic materials using chemical solution routes. Solution-based processing is generally more flexible in terms of precursor or substrate selection and related processing procedures, and is faster and less expensive compared to vapor deposition routes. These methods provide versatile and cost-effective manufacturing routes to large-area and high-quality inorganic films, nanocomposites, and functional entities like nanorods and nanoparticles. Recent developments in synthesis and processing have opened new ways to achieve enhanced and novel functionalities for applications in electronics, photovoltaics, photoelectrochemical cells, sensors, actuators, energy-harvesting and storage devices, memory devices, magnetic sensors, etc.

This Special Issue will address the solution processing of nanostructured oxides and related hybrid materials with specific functionalities depending on processing conditions. We invite authors to contribute original research as well as review articles on the current state of research on the synthesis and processing of solution-derived oxide and nanocomposite thin films, patterned surfaces, and nanostructures, including their properties and applications.

Topics to be covered are solution synthesis, structure evolution and phase growth, fabrication, and porous or oxide nanostructures, including their assembly into functional components. The characterization by advanced analytical methods, establishment of processing–structure–property relationships, and application of solution-derived oxides in forefront technologies are addressed. Finally, integration issues in the realization of devices will also be considered.

Prof. Dr. Chien-Jung Huang
Prof. Dr. Chin-Hau Chia
Prof. Dr. Kuan-Wei Lee
Guest Editors

Manuscript Submission Information

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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. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • solution
  • synthesis
  • oxide
  • nanostructure

Published Papers (1 paper)

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29 pages, 6695 KiB  
Multimodal Spectroscopy Assays for Advanced Nano-Optics Approaches by Tuning Nano-Tool Surface Chemistry and Metal-Enhanced Fluorescence
by Marcelo R. Romero, Alicia V. Veglia, Maria Valeria Amé and Angel Guillermo Bracamonte
Crystals 2024, 14(4), 338; - 31 Mar 2024
Viewed by 450
In this research work, different chemical modifications were applied to gold nanoparticles and their use in enhanced non-classical light emitters based on metal-enhanced fluorescence (MEF) was evaluated. In order to achieve this, gold core–shell nanoparticles with silica shells were modified via multilayered addition [...] Read more.
In this research work, different chemical modifications were applied to gold nanoparticles and their use in enhanced non-classical light emitters based on metal-enhanced fluorescence (MEF) was evaluated. In order to achieve this, gold core–shell nanoparticles with silica shells were modified via multilayered addition and the incorporation of a covalently linked laser dye to develop MEF. Their inter-nanoparticle interactions were evaluated by using additional silica shell multilayers and modified cyclodextrin macrocycles. In this manner, the sizes and chemical surface interactions on the multilayered nanoarchitectures were varied. These optical active nanoplatforms led to the development of different nanoassembly sizes and luminescence behaviors. Therefore, the interactions and nanoassembly properties were evaluated by using various spectroscopic and nanoimaging techniques. Highly dispersible gold core–shell nanoparticles with diameters of 50–60 nm showed improved colloidal dispersion that led to single ultraluminescent gold core–shell nanoparticles with MEF. Then, the addition of variable silica lengths produced increased interactions and consequent nanoaggregation. However, the silanized nanoparticles were easily dispersible after agitation or sonication. Thus, their sizes were proportional only to the diameter and the van de Waals interaction did not affect their sizes in bulk. Then, the covalent linking of different concentrations of modified cyclodextrins was applied to the chemical surfaces by incorporating additional hydroxyl groups from the glucose monomeric unities of cyclodextrins. In this manner, variable larger-sized and inter-branched grafted gold core–shell silica nanoparticles were generated. The ultraluminescent properties were conserved due to the non-optical activity of the cyclodextrins. However, they generated enhanced ultraluminescence phenomena. Laser fluorescence microscopy nanoimaging showed enhanced resolutions in comparison to non-grafted supramolecular gold core–shell nanoparticles. The differences in their interactions and the sizes of the nanoassemblies were explained by their single nanoparticle diameters and the interacting chemical groups on their nanosurfaces. While the varied luminescence emissions generated were tuned by plasmonics, enhanced plasmonic phenomena and light scattering properties were seen depending on the type of nanoassembly. Thus, optically active and non-optically active materials led to different optical properties in the bright field and enhanced the excited state within the electromagnetic near-field of the gold nanotemplates. In this manner, it was possible to achieve high sensitivity by varying the spacer lengths and optical properties. Therefore, further perspectives regarding the design of nano-tools composed of light for various applications were discussed. Full article
(This article belongs to the Special Issue Solution Processing and Properties of Oxide Films and Nanostructures)
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