Article
Materials Science, Coatings & Films
Fei Xia, Lei Yang, Bing Dai, Zhenhuai Yang, Liangge Xu, Gang Gao, Chunqiang Sun, Zicheng Song, Victor Ralchenko, Jiaqi Zhu
Summary: Vanadium pentoxide films deposited on sapphire substrates underwent different transition behaviors during annealing in various ambient atmospheres due to the oxygen proportion. The optical properties were influenced, with changes observed in infrared transmittance, especially when annealed in 0.1% O2 /Ar atmosphere. The study provides a detailed insight into the thermal transition process of vanadium oxide materials, offering valuable data for preparation technology and application.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Chanchal Jeengar, Monika Tomar, Kajal Jindal, Anjali Sharma, Pradip K. Jha
Summary: This study explores the thermoelectric properties of In2Se3 thin films, which have both low thermal conductivity and high electrical conductivity. The results show improved properties for doped systems on both cation and anion sites. In2Se3 thin films were grown using thermal evaporation technique and the effect of post deposition annealing on their thermoelectric properties was studied. The findings demonstrate high electron mobility, electrical conductivity, power factor, and ZT values for the annealed films at 300 degrees C.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Materials Science, Ceramics
Xin Geng, Wenzhe Xu, Peng Wang, Qingyang Du, Haibin Sun, Haoqing Li, Guangwu Wen
Summary: Carbon-coated tantalum-based oxides photocatalysts were synthesized through annealing in argon, demonstrating excellent photocatalytic activity in degrading methylene blue under visible light, indicating their promising potential for wide-ranging photocatalytic applications.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Zhiying Pang, Zhangyi Pan, Min Ma, Zhiyan Xu, Shiqi Mei, Zengxin Jiang, Feng Yin
Summary: The study successfully developed a TP coating on the surface of PEEK, which significantly improved the surface performance of PKTP and enhanced cellular response. It indicated that the nanostructured TP coating on PEEK played a crucial role in inducing responses of RBMS/HGE cells.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Materials Science, Ceramics
Yogita Maithani, J. A. Khan, B. R. Mehta, J. P. Singh
Summary: This study focuses on the fabrication of zirconia thin films by e-beam deposition and optimizing their cubic phase through thermal annealing at different temperatures without using dopants or stabilizers. The annealing at 500 degrees C produces a stable cubic phase with a crystallite size of 10.7+/-0.8 nm, high optical transparency of around 80% in the visible range, improved crystallinity, hydrophilicity, and reduced nonradiative defects. The mechanical properties of the zirconia films also improve with increasing annealing temperature, with increased hardness and elastic modulus.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Oga Norimasa, Tomoyuki Chiba, Masataka Hase, Takafumi Komori, Masayuki Takashiri
Summary: Researchers propose a method to form high-quality thermoelectric thin films on flexible substrates by bending the substrates into a concave shape during film deposition and post-thermal annealing processes. This improves crystal growth and increases electrical conductivity. This is important for the development of flexible thermoelectric generators for wearable devices and wireless sensors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Adolf Canillas, Frank Guell, Oriol Arteaga, Paulina R. Martinez-Alanis, Michel Vergnat, Herve Rinnert, Blas Garrido
Summary: The dielectric function of VOx and V2O5 thin films was determined using a spectroscopic Mueller matrix ellipsometer, showing their optical properties at different wavelengths.
Article
Chemistry, Physical
Mohd Zahid Ansari, Petr Janicek, Dip K. Nandi, Karel Palka, Stanislav Slang, Deok Hyun Kim, Taehoon Cheon, Soo-Hyun Kim
Summary: This article investigates the effects of post-thermal annealing treatment on the properties of tin nitride thin films. With increasing annealing temperatures, changes in the film structure and crystallinity occur, along with the release of nitrogen leading to variations in film properties. Changes in optoelectronic properties are closely related to alterations in crystallinity and stoichiometry.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Xi Chen, Haohang Sun, Wenbo Zhang, Chunbo Tan, Xiuhuan Liu, Jihong Zhao, Lixin Hou, Yanjun Gao, Junfeng Song, Zhanguo Chen
Summary: Highly c-axis oriented hBN films were successfully deposited onto sapphire substrates using a low-pressure chemical vapor deposition method. The effects of different post-annealing conditions on the crystalline quality and optical and photoelectric properties of the deposited hBN films were investigated. The results showed that post-annealing treatment improved the ordering of hBN domains, reduced defects, promoted the growth of hBN grains, and decreased grain boundaries.
Article
Chemistry, Physical
Xin Geng, Xiaoxiao Huang, Bo Zhong, Zhiyuan Liu, Dong Wang, Guangwu Wen
Summary: In this study, various crystalline Ta2O5 nanomaterials were synthesized and evaluated as anodes for lithium-ion batteries. The Ta2O5@C-Ar material with oxygen vacancies and carbon coating exhibited superior stability and energy storage performance, presenting a promising strategy for developing high-performance batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Muhammad Hilmi Johari, Mohamad Shukri Sirat, Mohd Ambri Mohamed, Yutaka Wakayama, Abdul Rahman Mohmad
Summary: Multi-step chemical vapor deposition (CVD) is capable of producing high-quality thin films, and this study focuses on the effects of post-annealing on the structural and optical properties of MoS2 thin films. The results demonstrate that annealing significantly improves both the optical and structural quality of the MoS2 film.
NANOMATERIALS AND NANOTECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
S. Ildan Ozmen, S. H. Temiz, H. Metin Gubur
Summary: Tin sulfide thin films were prepared using chemical bath deposition and their properties were investigated after annealing. The annealing process affected the film's optical, structural, and electrical properties. The p-type SnS films can be used as an alternative material for the absorber layer in p-n heterojunction solar cells.
Article
Optics
Yun Cui, Yuanan Zhao, Ge Zhang, Meiping Zhu, Chen Song, Chunxian Tao, Tan Shu, Jianda Shao
Summary: Different laminated structures of TiO2/SiO2 composite film were prepared via ALD on alumina substrates. The effect of annealing temperature on the surface morphologies, crystal structures, binding energies, and ingredient content was investigated, showing a decrease in film thickness and increase in density and roughness with increasing annealing temperature. Moreover, the annealing process caused the diffusion of Al ions from the substrate into the films.
CHINESE OPTICS LETTERS
(2021)
Article
Physics, Applied
Zhibin Liu, Yanan Guo, Jianchang Yan, Yiping Zeng, Junxi Wang, Jinmin Li
Summary: This study demonstrated the polarity tuning of AlN films by introducing trace oxygen supply and high-temperature annealing, successfully achieving high-quality N-polar and Al-polar AlN films. High crystal quality was obtained through sputtering with pure N-2 gas, and after optimization, the X-ray rocking curves for N-polarity and Al-polarity were significantly improved.
APPLIED PHYSICS EXPRESS
(2021)
Article
Chemistry, Multidisciplinary
Liangge Xu, Jinye Yang, Kun Li, Lei Yang, Jiaqi Zhu
Summary: This study investigates the effect of post-deposition annealing process on the microstructure and optoelectronic properties of indium-hydroxide-doped thin films. The results show that the annealed films have high carrier mobility and transmittance, and exhibit excellent shielding performance against radar electromagnetic waves. This provides a guideline for fabricating lightweight, thin, and multi-functional shielding infrared transparent materials.
Article
Physics, Applied
Jose Luis Hidalgo Gonzalez, Cristian Botez, Jose Trinidad Elizalde Galindo, Jose Andres Matutes-Aquino
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2020)
Article
Materials Science, Multidisciplinary
Fernando Soto-Nieto, Rurik Farias, Simon Yobanny Reyes-Lopez
Article
Chemistry, Multidisciplinary
J. Lopez, A. A. Ortiz, F. Munoz-Munoz, D. Dominguez, J. N. Diaz de Leon, J. T. Elizalde Galindo, T. Hogan, S. Gomez, H. Tiznado, G. Soto-Herrera
Summary: This work focuses on the design and manufacture of multifunctional materials for dye degradation in textile industry effluents. The Co0.25Zn0.75Fe2O4 nanostructured material showed good mechanical stability, excellent magnetically response, and high efficiency in the catalytic degradation of toxic dyes. These materials are suitable to be used as efficient photocatalysts and recovered from wastewater using magnetic separation protocols.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Israel Perez, Juan Carlos Martinez Faudoa, Juan R. Abenuz Acuna, Jose Trinidad Elizalde Galindo
Summary: First principles calculations using density functional theory (DFT)+U method were conducted to investigate the impact of Li interstitial doping on the optoelectronic properties of NiO and various structures of WO3. The study found that Li interstitial doping can induce metallic-like behavior in these materials and significantly influence their optical properties.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Optics
Juan R. Abenuz Acuna, Israel Perez, Victor Sosa, Fidel Gamboa, Jose T. Elizalde, Rurik Farias, Diana Carrillo, Jose L. Enriquez, Andres Burrola, Pierre Mani
Summary: This study investigated the effect of sputtering power on the electrochromic properties of nickel oxide films deposited on ITO-coated glass substrates. It was found that increasing sputtering power leads to a decrease in coloration efficiency and reversibility. XPS analysis demonstrated that higher sputtering power promotes the formation of nickel hydroxides on the film surface.
Article
Crystallography
Blanca Selenis Cabello-Ribota, Rurik Farias, Simon Yobanny Reyes-Lopez
Summary: Surface Enhanced Infrared Absorption (SEIRAS) and Raman Spectroscopy (SERS) are nondestructive analytic techniques used to detect low concentrations and recognize molecular fingerprints. Developed structures with SERS and SEIRAS effects help generate hot spots to amplify aggregates of nanoparticles.
Article
Materials Science, Coatings & Films
Pierre Giovanni Mani-Gonzalez, Caitlin McFeely, Matthew Snelgrove, Kyle Shiel, Jesus Alfredo Hernandez Marquez, Robert O'Connor
Summary: Vapor phase infiltration (VPI) is a bottom-up process that involves the infiltration of polymers with atomic layer deposition compatible precursors. By combining different receptive and rejecting polymers, complex nanopatterns can be created, offering a route to area selective deposition. The successful incorporation of titanium into polymer films was demonstrated through XPS analysis and VPI treatments without breaking vacuum.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2021)
Article
Chemistry, Physical
Israel Perez, Victor Sosa, Fidel Gamboa, Jose Luis Enriquez-Carrejo, Juan Carlos Mixteco Sanchez
Summary: The influence of lithium insertion on the electronic and electrochemical properties of fluorine-doped SnO2 (FTO) was assessed using a combination of experimental techniques and density functional theory (DFT) calculations. The electrochromic properties of FTO were evaluated and it was found that lithium remains ionized in the lattice, raising the Fermi level and inducing a shift in the Sn 3d states.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Israel Alejandro Flores Urquizo, Tomas Constantino Hernandez Garcia, Shadai Lugo Loredo, Jose Trinidad Elizalde Galindo, Perla Elvia Garcia Casillas, Jazmin Cristina Stevens Barron, Christian Chapa Gonzalez
Summary: Magnetic nanoparticle interfaces have attracted significant scientific interest in the biomedical field due to their impact on cell or biomolecule interactions. This study evaluated the changes in coercive field of NixFe3-xO4 nanoparticles driven by variations in composition and coating, and found that aminosilane coating increased coercive field and decreased cell viability.
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2022)
Review
Chemistry, Physical
Israel Perez
Summary: With the rapid development of electric vehicles and mobile technologies, there is a high demand for electrochemical energy storage devices and electrochemical energy conversion devices. Computational simulation can expedite the experimental endeavor and predict device performance, which is crucial for improving the operational parameters and physical properties of these devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Coatings & Films
A. Herrera-Gomez, M. O. Vazquez-Lepe, P. G. Mani-Gonzalez, P. Pianetta, F. S. Aguirre-Tostado, O. Ceballos-Sanchez
Summary: One doublet is typically used to fit the Si-0 substrate species in Si 2p photoemission spectra from Si (001) H-terminated and oxidized surfaces. However, there is a second substrate-top component (S-T) with a higher binding energy than the bulk component, varying in intensity depending on the emission angle. It exists even for oxidized surfaces and does not correspond to any suboxide species. The S-T component contributes to the signal dip between the two S-O branches of the Si 2p spectra for glancing electron takeoff angles, but it is not mentioned in the literature.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Physical
Claudia Alejandra Hernandez-Escobar, Alain Salvador Conejo-Davila, Alejandro Vega-Rios, Erasto Armando Zaragoza-Contreras, Jose Rurik Farias-Mancilla
Summary: In this study, wheat husk ash (WHA) was produced by calcination and used as a raw material to synthesize geopolymers with different concentrations of NaOH. The geopolymers synthesized with 16M and 30M NaOH showed significant mechanical properties and thermal conductivity, respectively.
Article
Chemistry, Multidisciplinary
Oscar A. Lopez-Galan, Israel Perez, John Nogan, Manuel Ramos
Summary: The electronic structure and thermoelectric properties of MoX2 (X = S, Se) Van der Waals heterojunctions are studied aiming to facilitate the design of electronic devices. The stable nature of the proposed heterojunctions and the reduction in band gap from 1.8 eV to 0.8 eV are revealed through calculations. The interaction between metallic d-character orbitals and chalcogen p-character orbitals plays a key role in this band gap reduction. Furthermore, it is predicted that the heterojunctions can exhibit a transition from semiconducting to semi-metallic behavior.
ADVANCED MATERIALS INTERFACES
(2023)
