Article
Materials Science, Multidisciplinary
Aleksei Almaev, Nikita N. Yakovlev, Bogdan O. Kushnarev, Viktor V. Kopyev, Vadim A. Novikov, Mikhail M. Zinoviev, Nikolay N. Yudin, Sergey N. Podzivalov, Nadezhda N. Erzakova, Andrei Chikiryaka, Mikhail P. Shcheglov, Houssain Baalbaki, Alexey S. Olshukov
Summary: This study investigates the electrical conductivity and gas response of TiO2 films deposited using IBSD at high temperatures. It is found that annealing temperature affects the response and recovery of the films, and the response to different gases can be controlled by varying the annealing conditions and film thickness.
Article
Materials Science, Multidisciplinary
Abuduwaili Mijiti, Mamatrishat Mamat, Fuerkaiti Xiaerding, Qing Wang, Abuduresuli Abudurexiti, Litipu Aihaiti
Summary: The BiFeO3 (BFO) thin films prepared by electron beam evaporation were systematically investigated to determine optimal deposition power and elemental composition, with the purest phase identified at 650 degrees C. The study also employed X-ray diffraction, Raman spectroscopy, and scanning electron microscopy to analyze surface morphology and structure thickness. Additionally, X-ray photoelectron spectroscopy was used to study changes in chemical bond structure at various annealing temperatures, revealing increased oxygen absorption with higher temperatures. Magnetic properties and resistivity were also measured, indicating correlations between magnetization, microstructures, and surface morphology.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Chemistry, Physical
Frank Lungwitz, Michael Fronk, Peter Richter, Carola Mende, Tobias Rueffer, Ovidiu D. Gordan, Cameliu Himcinschi, Dietrich R. T. Zahn, Heinrich Lang, Georgeta Salvan
Summary: Thin films of H2TPP and H2TMPP were prepared by OMBD, and the impact of deposition methods on optical properties was investigated. Comparative Raman spectroscopy studies verified the preservation of molecular structure. The storage in air was found to decrease molecular order and increase film roughness compared to nitrogen storage.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Eva De Leo, Aurelio A. Rossinelli, Patricia Marques-Gallego, Lisa V. Poulikakos, David J. Norris, Ferry Prins
Summary: Linear gratings patterned on the surface of cQD thin films enhance the outcoupling of emission, resulting in bright and saturated colors. By adjusting the periodicity and orientation of the gratings, active color tuning of the thin-film emission is achieved.
Article
Engineering, Electrical & Electronic
Abdessamad Najim, Bouchaib Hartiti, Hicham Labrim, Salah Fadili, Mehmet Ertugrul, Philippe Thevenin
Summary: Zinc sulfide thin films were successfully deposited by spray pyrolysis, and the effects of growth conditions on film properties were investigated. The results showed that deposition time had an impact on transmittance and crystal quality, but not on the band gap.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Adem Yavuz, M. Fatih Danisman
Summary: We studied the vibrational properties and the effect of beam kinetic energy on PFP thin films grown by SMBD technique. We found significant differences in the properties of films grown using helium and argon carrier gasses for low coverage films and low deposition rates. However, for multilayer films, there were no significant differences between films grown with helium and argon. The vibrational properties were investigated using s-SNOM, and it was found that PFP-substrate interactions resulted in significant differences in the spectra of thin films but not thick films. Davydov splitting of the IR modes was observed for both thin and thick films, indicating similar molecular arrangements.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Steffen Wilbrandt, Olaf Stenzel, Abrar Liaf, Peter Munzert, Stefan Schwinde, Sven Stempfhuber, Nadja Felde, Marcus Trost, Tina Seifert, Sven Schroeder
Summary: Aluminum thin films with thicknesses between approximately 10 and 60 nm were deposited using evaporation and sputtering techniques. The layer characterization focused on reflectance, optical constants, and surface quality. A thickness dependence of the optical constants was established in the investigated thickness range.
Article
Materials Science, Ceramics
A. V. Tyunkov, Yu. G. Yushkov, A. A. Andronov, D. B. Zolotukhin
Summary: In this study, we investigated the deposition of layered micrometer-thin magneto-dielectric Fe-Ni-Al2O3 coatings using electron-beam evaporation. The alumina ceramic layer provided the dielectric properties, while the nickel and iron layers contributed to the magnetic properties. The magnetic properties were found to have an effective saturation magnetization of 5.5±1.0 kG, close to the known value for a fully-metallic nickel layer (6.05 kG).
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Dohyun Go, Jaehyeong Lee, Jeong Woo Shin, Sungje Lee, Wangu Kang, Jeong Hwan Han, Jihwan An
Summary: This study demonstrates a method to achieve localized crystallization of TiO2 thin films through plasma treatment, and modulates the optical and electrical properties by fabricating phase-gradient TiO2 films, optimizing the ratio between amorphous and crystalline layer thicknesses.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Michal Kurka, Karel Palka, Jiri Jancalek, Stanislav Slang, Miroslav Vlcek
Summary: This study explored the preparation and structuring of chalcogenide glass thin films, demonstrating that solution-processed films can be structured at lower temperatures than thermally evaporated films. The findings suggest potential applications in various fields with the ability to structure films at significantly reduced temperatures.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
P. A. Gonzalez-Ocegueda, A. Herrera-Saucedo, J. G. Quinones-Galvan, C. Valero-Luna, L. Alvarado-Perea, L. Canizales-Davalos, G. Martinez-Guajardo, A. Banuelos-Frias
Summary: A simple and inexpensive methodology for depositing thin films composed of semiconductor TiO2 nanoparticles using a DLP 3D printer was presented in this study. The structural and optical properties of the films were studied using various spectroscopic techniques, and particle size distribution and film thickness were analyzed through SEM micrographs. Single-layer TiO2 thin films were successfully deposited through DLP 3D printing, with potential applications in sensors, energy harvesting, catalysis, hydrogen production, and other UV light applications.
Article
Engineering, Electrical & Electronic
Neda Bathaei, Binbin Weng, Hjalti Sigmarsson
Summary: This study experimentally investigated a technique for crystallization of GeTe thin films using the PED growth method, and evaluated the crystal quality and electrical conductivity performance through various characterization methods.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Tobias Junghoefer, Arrigo Calzolari, Ivan Baev, Mathias Glaser, Francesca Ciccullo, Erika Giangrisostomi, Ruslan Ovsyannikov, Fridtjof Kielgast, Matz Nissen, Julius Schwarz, Nolan M. Gallagher, Andrzej Rajca, Michael Martins, Maria Benedetta Casu
Summary: Magnetism in organic materials is intriguing and the magnetic behavior in purely organic radical thin films is different from that in single crystals. Tuning the film magnetic properties by molecular arrangement holds exciting prospects for revealing new properties and applications.
Article
Nanoscience & Nanotechnology
Lirong Sun, John G. Jones, John T. Grant, Neil R. Murphy, C. Ramana, Kurt G. Eyink, Jonathan P. Vernon, Peter R. Stevenson
Summary: HfO2 thin films deposited using pulsed laser deposition at different substrate temperatures exhibit different crystal phases and nanostructures, with minimal impact on the resulting optical properties in the nanoscale-thick films. The achievement of fully stoichiometric, high-density, thin-film HfO2 from PLD is expected to further enable thermally robust nanoscale photonic device integration involving low-dimensional high-performance optical and optoelectronic applications.
ACS APPLIED NANO MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Felix Blendinger, Daniel Seitz, Andreas Ottenschlager, Monika Fleischer, Volker Bucher
Summary: TiO2 thin films deposited on PEEK using PEALD method show promising osteogenic properties, enhancing the bioactivity of the implants effectively.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Fayegh Hosseinpanahi, Davood Raoufi, Khadijeh Ranjbarghanei, Bayan Karimi, Reza Babaei, Ebrahim Hasani
APPLIED SURFACE SCIENCE
(2015)
Article
Physics, Applied
Davood Raoufi, Atefeh Taherniya
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
(2015)
Article
Materials Science, Coatings & Films
Davood Raoufi, Leila Eftekhari
SURFACE & COATINGS TECHNOLOGY
(2015)
Article
Chemistry, Physical
Jalal Arjomandi, Davood Raoufi, Fatemeh Ghamari
JOURNAL OF PHYSICAL CHEMISTRY C
(2016)
Article
Materials Science, Coatings & Films
Ebrahim Hasani, Davood Raoufi
SURFACE ENGINEERING
(2018)
Article
Materials Science, Multidisciplinary
Ebrahim Hasani, Davood Raoufi
MATERIALS RESEARCH EXPRESS
(2018)
Article
Materials Science, Multidisciplinary
Atefeh Taherniya, Davood Raoufi
MATERIALS RESEARCH EXPRESS
(2019)
Article
Engineering, Mechanical
Davood Raoufi
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2015)
Article
Materials Science, Coatings & Films
Leila Eftekhari, Davood Raoufi
SURFACE ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Davood Raoufi
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Multidisciplinary
Fatemeh Ghamari, Davood Raoufi, Jalal Arjomandi
Summary: ITO thin films with high transparency, low resistivity, and smooth surface are important for optoelectronic and energy storage applications. The research showed that as the thickness of ITO films increased, the crystallite size and lattice constant increased, while strain, dislocation density, and texture coefficient showed a different trend. Thicker ITO films were found to have a smoother surface and lower porosity.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Ebrahim Hasani, Davood Raoufi
Summary: The research showed that the crystallite size of CdTe films increases with annealing temperature, and Te precipitates form in the films during annealing. Additionally, the optical energy band gap decreases with higher annealing temperatures.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Leila Eftekhari, Davood Raoufi, Mohamad Javad Eshraghi, Mohsen Ghasemi
Summary: This study provides information about the surface morphology of sputtered yttria-stabilized zirconia (YSZ) thin films at varying annealing temperatures. The results show that annealing temperatures affect the fractal dimension, surface roughness, and spatial distribution of grains in the films.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Fatemeh Ghamari, Davood Raoufi, Saber Alizadeh, Jalal Arjomandi, Davood Nematollahi
Summary: Efficient new binder-free bimetallic metal-organic framework (bi-MMOF) symmetric supercapacitors were fabricated, with surface statistical and morphological studies used to predict superior electrochemical performance. The studies showed that the bi-MMOF electrodes demonstrated excellent electrochemical performance and stability compared to mono-metallic MOF electrodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
