Article
Biochemistry & Molecular Biology
Irina Yu. Zhuravleva, Maria A. A. Surovtseva, Alina A. A. Alshevskaya, Nikolay V. V. Surovtsev, Konstantin A. A. Okotrub, Irina I. I. Kim, Dmitriy A. A. Nasimov, Natalia A. A. Bondarenko, Oleg S. S. Kuzmin, Olga V. V. Poveshchenko
Summary: This study developed an integral cytocompatibility index and a decision tree algorithm to assess the cytocompatibility of TiO2 and N-TiO2 coatings. The results showed that the sample dominated by the rutile phase exhibited the best cytocompatibility. The DTA provided more detailed information about cytocompatibility.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Ceramics
Prashant Thapliyal, Alok S. Kandari, Vijendra Lingwal, N. S. Panwar, G. Mohan Rao
Summary: The study investigated the characteristics of (Ta2O5)1-x- (TiO2)x (TTOx) thin films prepared with different compositions and annealing temperatures, revealing that the film with x = 0.06 and annealed at 700°C exhibited the highest dielectric constant and lower leakage current density, making it suitable for high-density silicon memory devices.
CERAMICS INTERNATIONAL
(2021)
Article
Biochemistry & Molecular Biology
Irina Yu. Zhuravleva, Maria A. A. Surovtseva, Andrey A. A. Vaver, Evgeny A. A. Suprun, Irina I. I. Kim, Natalia A. A. Bondarenko, Oleg S. S. Kuzmin, Alexander P. P. Mayorov, Olga V. V. Poveshchenko
Summary: The cytocompatibility of titanium oxides and oxynitrides thin films is highly dependent on the surface topography. The study investigated the effect of different surface topography on the cytocompatibility of coatings using 16 groups of samples. It was found that the surface nanostructure plays a crucial role in the cytocompatibility of thin films.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Ida Sadeghi, Kevin Ye, Michael Xu, Yifei Li, James M. LeBeau, Rafael Jaramillo
Summary: The study demonstrates the fabrication of BaZrS3 thin films using MBE, resulting in smooth films on the atomic scale with near-perfect stoichiometry and sharp interfaces. The films grow epitaxially via two competing growth modes, buffered epitaxy and direct epitaxy, showcasing the potential for developing chalcogenide perovskites as semiconductor alloys with tunable properties. This work also signifies a resurgence of gas-source chalcogenide MBE methods.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Samaneh Jafarpour, Hamid Naghshara, Bagher Aslibeiki
Summary: This study examines the properties of LiAlO2 thin films and compares them to Al2O3 and Li2O thin films for their potential use as ion-conducting dielectrics in metal-insulator-metal (MIM) capacitors. The reactive magnetron co-sputtering method is introduced for depositing LiAlO2, resulting in a smooth and uniform amorphous film with high transparency and a wide band gap. The incorporation of lithium ions into the alumina leads to enhanced conductivity and dielectric properties, making it a promising material for thin film capacitors with better energy storage performance and lower loss.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Fatima Haydous, Sijun Luo, Kuan-Ting Wu, Craig Lawley, Max Dobeli, Tatsumi Ishihara, Thomas Lippert
Summary: Perovskite oxynitride semiconductors have emerged as promising photoelectrode materials for photoelectrochemical water splitting, with their surface characteristics and evolution playing a significant role in their PEC applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Coatings & Films
Hui-Ping Fan, Xin-Xian Yang, Fu-Hsing Lu
Summary: In this study, quaternary titanium-aluminum oxynitride films with various nitrogen and oxygen compositions were successfully produced by changing the reactive gas and gas flow ratio. The obtained films showed different structures and properties.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Daniel Cristea, Ioana-Laura Velicu, Luis Cunha, Nuno Barradas, Eduardo Alves, Valentin Craciun
Summary: The possibility to tune the elemental composition and structure of binary Me oxynitride-type compounds could lead to attractive properties. By adjusting the Ta and Ti content, the hardness, adhesion, and optical and electrical properties of the TaTiON thin films were affected.
Article
Metallurgy & Metallurgical Engineering
Ming Jiang, Zhan Cheng, Dan Zhao, Lei Zhang, Dong Xu
Summary: In this study, Mg-doped CCTO thin films were prepared by a modified sol-gel method, and a comparative study on their microstructure and electrical properties was carried out. The results showed that Mg doping could reduce the grain size of CCTO films and improve the dielectric constant and frequency stability.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Nicolas Martin, Jean-Marc Cote, Joseph Gavoille, Valerie Potin
Summary: Tantalum oxide thin films were deposited using DC reactive magnetron sputtering from a tantalum metallic target and argon + oxygen. The introduction time of the reactive gas, t(ON), during the deposition was found to be a key parameter in the formation of either homogeneous tantalum oxides or periodic Ta/TaOx multilayers. It was also discovered that the optical transmittance and electrical conductivity of the films exhibited a gradual evolution from metallic to semiconducting and finally to dielectric properties as a function of the oxygen concentration.
Article
Chemistry, Physical
Corrado Comparotto, Petter Strom, Olivier Donzel-Gargand, Tomas Kubart, Jonathan J. S. Scragg
Summary: Chalcogenide perovskite BaZrS3 is a promising material for energy conversion, particularly in photovoltaics. However, the thin-film synthesis method is underdeveloped. In this study, a solid-state fabrication route is explored and successfully demonstrates the synthesis of BaZrS3 perovskite compatible with conductive substrates.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
D. Cristea, A. I. Scarlatescu, C. Croitoru, A. Marin, I-L. Velicu, V. Tiron, D. Martinez-Martinez, C. I. da Silva Oliveira, L. Cunha
Summary: ZrTiON coatings were deposited using reactive magnetron sputtering process, with Ti ribbons added to improve the performance. The coatings showed features of oxides, nitrides, and oxynitrides depending on the deposition conditions. Coatings deposited with Ti and a sputtering current of 1.5 A exhibited a more efficient photodegradation effect. Coatings deposited with an applied current of 2 A showed better performance in accelerated corrosion tests.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Aditya Deshpande, Koki Hojo, Koichi Tanaka, Pedro Arias, Hicham Zaid, Michael Liao, Mark Goorsky, Suneel Kumar Kodambaka
Summary: By growing van der Waals-bonded hexagonal boron nitride (hBN) layers on Al2O3 (0001) substrates and depositing MoSx layers via reactive magnetron sputtering, researchers obtain MoSx multilayers with higher crystalline quality on hBN/Al2O3 (0001) compared to bare Al2O3 (0001). The presence of hBN buffer layer enhances surface diffusion, resulting in improved crystallinity of MoSx layers. These findings have implications for nanoelectronic device fabrication.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Stefano Caporali, Stefano Mauro Martinuzzi, Lapo Gabellini, Nicola Calisi
Summary: In this study, a novel method of depositing lead-free all-inorganic Cs3Bi2I9 perovskite film from the vapor phase is presented. By optimizing the composition of the target and conducting thermal treatments, high-quality films with desirable crystallinity and optical properties were obtained.
Article
Chemistry, Physical
Nicolau Lopez-Pinto, Thomas Tom, Joan Bertomeu, Jose Miguel Asensi, Eloi Ros, Pablo Ortega, Cristobal Voz
Summary: Reduced molybdenum oxide films were deposited using a molybdenum trioxide target in different pressures and atmospheres, showing that stoichiometry could be controlled by adding hydrogen in the sputtering chamber. Increasing the substrate temperature led to the presence of metastable Mo4+ states at 3 mTorr. The optical properties matched literature values, with transmittances reaching 90%.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Tanguy Pussacq, Olivier Mentre, Franck Tessier, Axel Lofberg, Marielle Huve, Jesus Guererro Caballero, Silviu Colis, Houria Kabbour
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Ceramics
Florent Marlec, Claire Le Paven, Francois Chevire, Laurent Le Gendre, Ratiba Benzerga, Benoit Guiffard, Thibaut Dufay, Franck Tessier, Bachir Messaid, Ala Sharaiha
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2018)
Article
Biochemistry & Molecular Biology
Marion Barthomeuf, Xavier Castel, Laurent Le Gendre, Justine Louis, Martine Denis, Christine Pissavin
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Younes Lamri, Ratiba Benzerga, Azzedine Ayadi, Laurent Le Gendre, El Assal Aicha
MATERIALS RESEARCH EXPRESS
(2019)
Article
Chemistry, Inorganic & Nuclear
Baptiste Polteau, Francois Chevire, Franck Tessier, Philippe Deniard, Eric Gautron, Laurent Cario, Stephane Jobic
INORGANIC CHEMISTRY
(2019)
Article
Materials Science, Ceramics
L. Le Gendre, C. Le Paven, M. Haydoura, R. Benzerga, F. Marlec, A. Sharaiha, F. Chevire, F. Tessier, A. Moreac
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Physical
Kevin Guy, Franck Tessier, Helena Kaper, Fabien Grasset, Noee Dumait, Valerie Demange, Mitsuaki Nishio, Yoshitaka Matsushita, Yoshio Matsui, Toshiaki Takei, David Lechevalier, Caroline Tardivat, Tetsuo Uchikoshi, Naoki Ohashi, Stephane Cordier
CHEMISTRY OF MATERIALS
(2020)
Article
Materials Science, Ceramics
C. Le Paven, A. Ziani, F. Marlec, L. Le Gendre, F. Tessier, M. Haydoura, R. Benzerga, F. Chevire, K. Takanabe, A. Sharaiha
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Eduard Feldbach, Andreas Zerr, Luc Museur, Mamoru Kitaura, Geeth Manthilake, Franck Tessier, Veera Krasnenko, Andrei Kanaev
Summary: The electronic band structure of gamma-Ge3N4 was examined using spectroscopic techniques, showing potential as efficient photonic emitters with high thermal stability. The experimental results were supported by theoretical calculations, and the material's high conversion efficiency and robustness were compared with w-GaN, a basic material for commercial LED.
ELECTRONIC MATERIALS LETTERS
(2021)
Article
Chemistry, Physical
M. Haydoura, R. Benzerga, C. Le Paven, L. Le Gendre, V Laur, A. Chevalier, A. Sharaiha, F. Tessier, F. Chevire
Summary: This study investigates the dielectric properties of ferroelectric ceramics STLTO with different chemical compositions, and successfully integrates them in Dielectric Resonator Antennas (DRA). The experimental results demonstrate that the chemical composition of synthesized STLTO ceramics significantly affects their dielectric performance, and the simulation of the antenna prototype shows the radiation potential of STLTO at lower frequencies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
M. Haydoura, F. Marlec, C. Le Paven, R. Benzerga, L. Le Gendre, F. Chevire, F. Tessier, R. Seveno, A. Sharaiha
Summary: The structural and dielectric properties of thin films produced by reactive radiofrequency sputtering of a (Sr2Ta2O7)(100-x) (La2Ti2O7)(x) target with x = 1.65 were studied. It was found that the highest permittivities and tunabilities are associated with the pure and fully textured films. This was achieved for a 900 nm thick film deposited at T-s = 850 degrees C.
SOLID STATE SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
K. Aneb, H. Oudadesse, H. Khireddine, B. Lefeuvre, O. Merdrignac-Conanec, F. Tessier, A. Lucas
Summary: The modification of porosity and surface silanization are efficient methods to improve the physicochemical and biological properties of bioactive glass. The use of surfactant in the synthesis medium can pattern porosity and impact their in vitro bioactivity. Surface functionalization by silanization is a key method for grafting drugs or biomolecules to the glass surface. The study compared the effects of porosity modification and surface silanization on in vitro bioactivity of sol-gel-derived bioactive glasses.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Chinkit Tyagi, Corinne Lagrost, Vincent Dorcet, Franck Tessier, Bruno Fabre
Summary: This article presents a simple and convenient method for depositing carbon-embedded tungsten carbide electrocatalyst on nickel foam. By optimizing the sucrose concentration and reduction temperature, the best electrocatalytic efficiency for the hydrogen evolution reaction (HER) is achieved. The resulting electrocatalyst exhibits stability and efficiency in both acid and alkaline conditions.
ACS APPLIED ENERGY MATERIALS
(2023)
