Article
Materials Science, Multidisciplinary
C. Cachoncinlle, E. Millon, X. Portier, C. Hebert, J. Perriere, M. Nistor
Summary: This paper reports on the angular distribution of various properties of a zinc oxide film obtained by pulsed laser deposition on a large SiO2/Si substrate. The film exhibits anisotropy in its structural and physical properties along the substrate. The composition and microstructure of the film also varies in different regions of the substrate.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Mihai Alexandru Ciolan, Iuliana Motrescu
Summary: In this paper, a simple and eco-friendly method using pulsed laser ablation at low deposition temperature is employed to produce zinc oxide thin films with specific properties. The results show that the obtained thin films exhibit high porosity, crystallinity, and bandgap, making them promising for further applications in semiconductors and solar cells.
APPLIED SCIENCES-BASEL
(2022)
Article
Physics, Condensed Matter
A. Mandal, S. K. Adhi, B. P. Joshi, S. D. Shinde, A. G. Banpurkar, A. V. Limaye, K. P. Adhi, T. Sant, S. M. Jejurikar
Summary: Highly c-axis oriented, single-phase praseodymium doped ZnO thin films were deposited on cAl(2)O(3) substrate under different oxygen pressure conditions. Photoluminescence and X-ray photoelectron emission studies revealed the emission of Pr3+ ions and observed different transitions of Pr3+ ions.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Physics, Condensed Matter
Xiao Fu, Rihui Yao, Zhihao Liang, Dongxiang Luo, Zhuohui Xu, Yilin Li, Nanhong Chen, Chunyuan Hu, Honglong Ning, Junbiao Peng
Summary: Neodymium (Nd) doped indium-zinc-oxide (NIZO) is a material with high mobility and great potential in transparent electronic devices. NIZO thin films were prepared by pulsed laser deposition (PLD) method at different laser energies, leading to a transition from amorphous to amorphous/crystalline state in the films. The carrier mobility reaches the highest value at 250 mJ, but decreases with higher laser energy inputs.
SUPERLATTICES AND MICROSTRUCTURES
(2021)
Article
Optics
Noha H. Harb, Falah A. H. Mutlak
Summary: This paper introduces vanadium pentoxide films grown under different laser pulse energy conditions and investigates their impact on structural, optical, morphology, and electric properties. The study finds that films deposited with 840 mJ pulse energy exhibit good crystallization and intense green light emission at around 545 nm. The electrical properties also improve with increasing laser pulse energy.
Article
Materials Science, Multidisciplinary
Guohua Cao, Yifan Niu, Zhifei Wei, Shengli Qiu, Haitao Zong, Yuehong Yin, Xu Chen, Baoqing Zhang
Summary: HfO2 multilayer films with CuAg middle metal layer were prepared and investigated for their structural, optical, electrical, and morphological characteristics. The thickness of CuAg and substrate temperature were found to affect the properties of the films. Increasing CuAg thickness resulted in reduced near-infrared transmittance and sheet resistance. Raising the substrate temperature caused a transformation of HfO2 from amorphous to crystalline structure, leading to increased near-infrared transmittance and sheet resistance. The HfO2(50 nm)/CuAg(16 nm)/HfO2(50 nm) multilayer film grown at 150 degrees C exhibited the optimal optical and electrical properties.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Narathon Khemasiri, Annop Klamchuen, Sukittaya Jessadaluk, Prapakorn Rattanawarinchai, Punlapa Borklom, Adirek Rangkasikorn, Sakon Rahong, Chaiyuth Saekung, Mati Horprathum, Chanunthorn Chananonnawathorn, Tuksadon Wutikhun, Jiti Nukeaw, Navaphun Kayunkid
Summary: Transparent electrode (TE) plays a crucial role in optoelectronics, and the surface properties of TE layer greatly affect its electrical performance. This study investigates the morphological properties of laser-ablated aluminum-doped zinc oxide (AZO) films and finds a significant impact of laser fluence on the electrical properties. The optimized AZO film with low resistivity and high optical transmittance achieved from controlling the laser fluence is utilized for electrochromic devices.
Article
Materials Science, Multidisciplinary
Caifeng Wang
Summary: Zinc sulfide/zinc oxide (ZnS/ZnO) films were prepared on silicon wafers at different temperatures using pulsed laser deposition. The growth temperature was found to influence the crystallization quality, surface morphology, and optical characteristics of the films. The photoluminescence spectra showed two emission peaks at approximately 380 and 500 nm, with luminescence intensity increasing and then decreasing with increasing growth temperature. The ZnS/ZnO films exhibited rectifying behavior similar to common p-n junction diodes in current-voltage characteristics, indicating their potential applications in optoelectronic devices.
Article
Chemistry, Physical
Michal Novotny, Jan Remsa, Sarka Havlova, Joris More-Chevalier, Stefan Andrei Irimiciuc, Sergii Chertopalov, Petr Pisarik, Lenka Volfova, Premysl Fitl, Tomas Kmjec, Martin Vrnata, Jan Lanok
Summary: This study focuses on utilizing pulsed laser techniques to prepare Eu3+-doped oxide thin films, adjusting their properties through pulsed UV laser annealing in order to maximize Eu3+ photoluminescent response. The optical, structural, and surface properties were characterized using X-ray diffraction and atomic force microscopy to understand the changes induced by the annealing process.
Article
Engineering, Electrical & Electronic
Abderrahmane Boughelout, Roberto Macaluso, Isodiana Crupi, Bartolomeo Megna, Amer Brighet, Mohamed Trari, Mohamed Kechouane
Summary: The structural and photoelectrical properties of AZO/SiC heterojunctions fabricated by pulsed laser deposition were studied, showing that SiC layers have 3C-SiC phase and AZO films exhibit hexagonal wurtzite structure with excellent material properties. Both heterojunctions exhibited diode behavior under dark and white light, with a noticeable superiority for the AZO/SiC/n-Si device under illumination.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jaroslav Bruncko, Jaroslav Jr Jr Kovac, Miroslav Michalka, Marie Netrvalova, Jaroslav Kovac, Andrej Vincze, Jozef Novak
Summary: PLD deposition method allows for depositing thin films with different compositions on various substrates, and ZnO layers prepared on GaP nanorods exhibited uniform thickness. However, the method is sensitive to the orientation of the nanorods.
Article
Materials Science, Ceramics
Chujun Yao, Dong Zhang, Li Wu, Ning Xu, Jian Sun, Jiada Wu
Summary: IVB group metal oxides have shown great potential in various fields due to their excellent properties, and ternary ZrxHf1-xO2 films were successfully deposited using pulsed laser co-ablation in an oxygen plasma environment. The films are similar to binary ZrO2 and HfO2 films in structure and optical properties, highly transparent and with a monoclinic structure.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Condensed Matter
K. Harisha Kumar, S. M. Dharmaprakash
Summary: Transparent conducting thin films of cadmium doped tin oxide (CTO) were successfully fabricated on glass substrates by pulsed laser deposition technique. The electrical resistivity of 3 wt % Cd doped films was 2.407 x 10-3 & omega; cm with an electrical sheet resistance of 300.9 & omega;/. These films exhibited over 80% light transmission and a slightly varying optical energy gap for different doping concentrations. The enhanced electrical conductivity and optical transmittance make them suitable for applications in solar cells and display panels.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Ihor Virt, Roman Gamernyk, Piotr Potera, Bogumil Cieniek, Andrej Lozynsky
Summary: This paper presents the results of a photoelectric study on cobalt-doped zinc oxide thin films grown by pulsed laser deposition. The crystal structure of the films was determined using X-ray diffraction, and the time dependence of photoconductivity was studied using different excitation methods. The dynamics of photoconductivity on the duration of excitation pulses were analyzed for the structural layers.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Rudrashish Panda, Milaan Patel, Jinto Thomas, Hem Chandra Joshi
Summary: Cu2O and CuO films were deposited on a glass substrate using pulsed laser deposition technique under different ambient environments. The films synthesized in different atmospheres exhibited different phases. The results showed that these films had high efficiency and good recycling ability in photocatalytic reactions.
Article
Materials Science, Ceramics
Petronela Pascariu, Corneliu Cojocaru, Mihaela Homocianu, Petrisor Samoila, Andrei Dascalu, Mirela Suchea
Summary: Pure TiO2 and La3+-doped TiO2 nanofibers were synthesized by electrospinning and calcination. The nanofibers showed crystalline structure and wide distribution of band-gaps. The optimal conditions for photocatalytic degradation of pollutants were determined to be 0.1% La3+ and 600 degrees C.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Cosmin Romanitan, Ioan Valentin Tudose, Kyriakos Mouratis, Marian Catalin Popescu, Cristina Pachiu, Stelios Couris, Emmanouel Koudoumas, Mirela Suchea
Summary: This study reports the correlation between texture coefficient and electrochromism in vanadium pentoxide nanostructured films. It is found that texture coefficient affects the size of crystalline domains and electrochromic performance, with high texture coefficient facilitating charge insertion and increasing transmittance contrast.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Review
Materials Science, Textiles
Narcisa Vrinceanu, Stefan Bucur, Cristina Mihaela Rimbu, Sabina Neculai-Valeanu, Santiago Ferrandiz Bou, Mirela Petruta Suchea
Summary: This minireview presents recent developments in surface nano-structured textiles and their biomedical applications. It summarizes the coatings made of biopolymer films and nanoparticles on different textile substrates for enhanced medical applications, highlighting their role in reducing hospital-acquired infections. Combining metal and metal oxide nanoparticles with biopolymers is an effective technique to generate enhanced antibacterial, virucidal and antifungal properties. This overview emphasizes the need for further research in biomedical textiles, particularly in the areas of simultaneous deposition of nanoparticles-biopolymers, stabilization of nanoparticle dispersions with biopolymers, and the use of metal and metal oxide nanoparticles for antibacterial applications.
TEXTILE RESEARCH JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ioan Valentin Tudose, Kyriakos Mouratis, Octavian Narcis Ionescu, Cosmin Romanitan, Cristina Pachiu, Marian Popescu, Volodymyr Khomenko, Oksana Butenko, Oksana Chernysh, George Kenanakis, Viacheslav Z. Barsukov, Mirela Petruta Suchea, Emmanouel Koudoumas
Summary: The development of eco-friendly conductive water-based paints for EMI-shielding applications was investigated in this study. Graphene nanoplatelets, polyaniline emeraldine doped with poly(styrene sulfonic acid) or HCl or HBr, and poly(3,4-ethylenedioxythiophene) poly(styrene sulfonic acid) were used as components in water-based paints. The optimized compositions resulted in uniform, homogeneous, and conductive layers with good electrical conductivity and efficient EMI-shielding performance.
Article
Chemistry, Physical
Petronela Pascariu, Corneliu Cojocaru, Petrisor Samoila, Anton Airinei, Niculae Olaru, Aurelian Rotaru, Cosmin Romanitan, Lucian Barbu Tudoran, Mirela Suchea
Summary: This study reports on the optimization of pure TiO2 and Cu/TiO2 nanocomposite photocatalytic fibrous materials. The presence of copper in the nanocomposite triggers sunlight-driven photocatalysis, leading to significant degradation of Amaranth dye under visible-light irradiation. The Cu/TiO2 nanocomposite exhibits excellent photocatalytic activity, achieving a high color removal efficiency.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Ioan Valentin Tudose, Kyriakos Mouratis, Octavian Narcis Ionescu, Cosmin Romanitan, Cristina Pachiu, Emil Pricop, Volodymyr H. Khomenko, Oksana Butenko, Oksana Chernysh, Viacheslav Z. Barsukov, Mirela Petruta Suchea, Emmanouel Koudoumas
Summary: This study reported on optimized formulations of alcohol-based conductive paints for electromagnetic interference shielding. The paints formed uniform, opaque layers with good electrical conductivity and efficient shielding performance. Structural and morphological characteristics analysis indicated that these paints are new composite materials.
Article
Chemistry, Multidisciplinary
Andrianna Bouranta, Ioan Valentin Tudose, Luciana Georgescu, Anna Karaiskou, Nikolaos Rafail Vrithias, Zacharias Viskadourakis, George Kenanakis, Efsevia Sfakaki, Nikolaos Mitrizakis, George Strakantounas, Nikolaos Papandroulakis, Cosmin Romanitan, Cristina Pachiu, Oana Tutunaru, Lucian Barbu-Tudoran, Mirela Petruta Suchea, Emmanouel Koudoumas
Summary: Current technology to prevent biofouling relies on toxic materials, which can harm marine ecosystems. Developing less toxic antifouling materials is a challenge. In this study, composite lattices with different metal oxide contents were developed using 3D printing. The antifouling behavior of these materials was examined using image analysis techniques.
Article
Materials Science, Multidisciplinary
Kyriakos Mouratis, Ioan Valentin Tudose, Cosmin Romanitan, Cristina Pachiu, Marian Popescu, Georgios Simistiras, Stelios Couris, Mirela Petruta Suchea, Emmanuel Koudoumas
Summary: In this study, the effect of precursor concentration and solution quantity on the properties of WO3 films was investigated. The films exhibited good electrochromic activity and durability of charge exchange. The compositional and structural characteristics of the films were analyzed, suggesting that these features may contribute to the improved durability.
Article
Materials Science, Multidisciplinary
Volodymyr Khomenko, Oksana Butenko, Oksana Chernysh, Viacheslav Barsukov, Mirela Petruta Suchea, Emmanouel Koudoumas
Summary: This work focuses on the development of paint-like composites composed of carbon materials and magnetite in a polyvinyl butyral matrix. The study investigates the dependence of the composite's electromagnetic shielding properties on electrical characteristics and frequency. It is found that a high content of carbon components and the absence of filler particle agglomeration are crucial for achieving high electromagnetic shielding effectiveness. Additionally, a combination of carbon-graphite materials and magnetite fillers enhances shielding efficiency.
Article
Chemistry, Multidisciplinary
Ioan Valentin Tudose, Kyriakos Mouratis, Octavian Narcis Ionescu, Cosmin Romanitan, Cristina Pachiu, Oana Tutunaru-Brincoveanu, Mirela Petruta Suchea, Emmanouel Koudoumas
Summary: This study fabricates graphene nanoplatelets (GNPs) and multiwall carbon nanotubes (CNTs)-polypropylene (PP) composite materials for electromagnetic interference (EMI) shielding applications. The obtained composite materials are not simple physical mixtures of these components but new materials with particular properties, with the filler concentration and nature affecting the nanomaterials' structure and their conductivity. The characteristics of GNPs have a significant effect on their functionality, leading to composites with lower conductivity and less effective EMI shielding. The CNTs-PP composite panels exhibit excellent EMI attenuation when the CNTs concentration is at 10%.
Article
Chemistry, Multidisciplinary
Ana-Maria Panaitescu, Iulia Antohe, Claudiu Locovei, Sorina Iftimie, Stefan Antohe, Luc Piraux, Mirela Petruta Suchea, Vlad-Andrei Antohe
Summary: This work presents a method for preparing nanostructured electrodes based on vertically-aligned copper nanowires covered with cadmium telluride thin films. These electrodes have great potential for use in substrate-type photovoltaic cells. The multi-step preparation protocol involves electrochemical synthesis of copper nanowires within an anodic aluminum oxide template, and embedding them in a compact cadmium telluride thin film. The study compares three deposition methods for obtaining CdTe layers that can consistently penetrate the prepared copper nanowire array. The results show that under optimized conditions, the electrochemical deposition method could allow the cost-effective fabrication of efficient solar cells.
APPLIED SCIENCES-BASEL
(2022)
