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Advanced Functional Thin Film Materials: Simulations, Design, Preparation and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Chemical and Molecular Sciences".

Deadline for manuscript submissions: 20 July 2025 | Viewed by 601

Special Issue Editors


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Guest Editor
Laboratory of Multifunctional Materials, Institute of Electronics of Bulgarian Academy of Sciences, Blvd. Tsarigradsko Chaussee 72, 1784 Sofia, Bulgaria
Interests: thin films deposition; carbon phases; graphene/graphene-like materials; characterization of materials; structural defects
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
“Academician E. Djakov” Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
Interests: density functional theory; computational chemistry; quantum chemistry

Special Issue Information

Dear Colleagues,

Advanced Functional Materials covers an inherently broad class of materials, ranging from special alloys to functionalized inorganic materials and organic materials. Advanced Functional Thin Film Materials examines an exclusive area of materials science, including theoretical studies of materials with applications for molecular dynamics, controlled synthesis and characterization.

The materials that will be the focus of the Special Issue include:

  • Graphene and graphene-like materials;
  • Thin films of carbon phases, such as amorphous carbon (aC), tetrahedral carbon/ diamond-like carbon (taC/DLC)), amorphous hydrogenated carbon (aC:H), tetrahedral carbon (taC:H), etc.;
  • Silicon carbide (SiC);
  • Materials used in photovoltaic cells, such as CdTe, amorphous/fine-crystalline silicon, perovskite materials etc.;
  • Various composite materials, including those based on carbon composites with nano-sized inorganic fillers;
  • Both SiO2-based (e.g., Si-O-C and other glasses) and TiO2-based (e.g., Ti-O-C and other mixed glasses) glasses, etc.;
  • Oxide materials, such as ferroelectric/ ferromagnetic materials, optical/optoelectric materials, as well as those with antibacterial/ biomimetic coatings, etc.;

As the structure of the materials strongly influences their properties, the scope of the Special Issue will include both amorphous and nano/micro/single crystalline films/layers.

Dr. Teodor I. Milenov
Dr. Stefan Kolev
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 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.

Keywords

  • thin films
  • graphene/defective graphene
  • amorphous carbon
  • tetrahedral carbon/diamond-like carbon
  • amorphous hydrogenated carbon
  • hydrogenated tetrahedral carbon
  • CdTe
  • perovskites
  • carbon-based composites

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Published Papers (1 paper)

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Research

14 pages, 5102 KiB  
Article
Advanced Nested Coaxial Thin-Film ZnO Nanostructures Synthesized by Atomic Layer Deposition for Improved Sensing Performance
by Pengtao Lin, Lari S. Zhang, Kai Zhang and Helmut Baumgart
Appl. Sci. 2024, 14(23), 10959; https://doi.org/10.3390/app142310959 - 26 Nov 2024
Viewed by 281
Abstract
We report a new synthesis method for multiple-walled nested thin-film nanostructures by combining hydrothermal growth methods with atomic layer deposition (ALD) thin-film technology and sacrificial films, thereby increasing the surface-to-volume ratio to improve the sensing performance of novel ZnO gas sensors. Single-crystal ZnO [...] Read more.
We report a new synthesis method for multiple-walled nested thin-film nanostructures by combining hydrothermal growth methods with atomic layer deposition (ALD) thin-film technology and sacrificial films, thereby increasing the surface-to-volume ratio to improve the sensing performance of novel ZnO gas sensors. Single-crystal ZnO nanorods serve as the core of the nanostructure assembly and were synthesized hydrothermally on fine-grained ALD ZnO seed films. Subsequently, the ZnO core nanotubes were coated with alternating sacrificial coaxial 3D wrap-around ALD Al2O3 films and ALD ZnO films. Basically, the center nanorod was coated with an ALD 3D wrap-around Al2O3 sacrificial layer to realize a nested coaxial ZnO thin-film nanotube. To increase the surface-to-volume ratio of the nested multiple-film nanostructure, both the front and backside of the nested coaxial ZnO films must be exposed by selectively removing the intermittent Al2O3 sacrificial films. The selective removal of the sacrificial films exposes the front and backside of the free-standing ZnO films for interaction with target gases during sensing operation while steadily increasing the surface-to-volume ratio. The sensing response of the novel ZnO gas sensor architecture with nested nanotubes achieved a maximum 150% enhancement at low temperature compared to a conventional ZnO nanorod sensor. Full article
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