Article
Optics
Magdalena Zieba, Cuma Tyszkiewicz, Katarzyna Wojtasik, Krystian Pavlov, Pawel Chaber, Ewa Gondek, Jacek Niziol, Roman Rogozinski, Pawel Kielan, Pawel Karasinski
Summary: This work presents a study on low-loss waveguide layers for planar evanescent wave sensor applications. Crack-free SiOx:TiOy composite layers with refractive indices of approximately 1.65 were fabricated using a sol-gel method and dip-coating technique. The fabricated layers exhibited good waveguide properties and optical homogeneity.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shaohua Zeng, Ping Tang, Ying Song, Pengpeng Chen, Wangyan Nie, Ying Xu, Yifeng Zhou
Summary: Silica nanochains synthesized through self-assembly exhibit high transparency, excellent hydrophilicity, and good dispersibility, significantly improving the mechanical properties of polymer films.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Antonio Diaz-Parralejo, David Maya-Retamar, Manuel Calderon-Godoy, Jose Sanchez-Gonzalez, Angel L. Ortiz
Summary: The influence of Y2O3 dopant on the optical and mechanical properties of ZrO2 thin films was studied. The microstructural characterization and analysis showed that the films crystallize in the cubic phase, regardless of dopant content. Additionally, it was observed that the refractive index increases while the optical absorption and extinction coefficients, hardness, and elastic modulus decrease with increasing Y2O3 dopant.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Habib Chenaina, Charfeddine Messaadi, Jalila Jalali, Hatem Ezzaouia
Summary: This study focuses on sol-gel derived SnO2-TiO2 thin films deposited on silicon wafer type Si (100) substrate using spin coating technique, followed by heat treatments at four different temperatures. XRD characterization reveals the formation of nano-crystalline phase at 400 degrees C and further crystallization with increasing annealing temperature. Optical and dielectric properties analysis demonstrates universal many body response over a broad frequency range, presenting variations in structure and performance of the films.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
L. Duda, M. Czajkowski, P. Karasinski, C. Tyszkiewicz, M. Zieba, M. Guzik, A. Bachmatiuk
Summary: The fabrication process and characterization methods of waveguiding films for miniaturized photonic components were studied, and the influence of several key parameters on the film properties was investigated. The application of hybrid films for nanoimprint technique was reported for the first time.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Huihuang Xu, Hua Hao, Yanjiang Xie, Xin Wang, Jianlu Geng, Minghe Cao, Zhonghua Yao, Hanxing Liu
Summary: Lead-free BaZr0.25Ti0.75O3 films grown via a sol-gel method on Pt/Ti/SiO2/Si substrates exhibit good microstructure and energy storage performance, with moderate polarization and high breakdown strength, as well as excellent temperature stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
P. Vidhya, K. Shanmugasundaram, P. Thirunavukkarasu, T. Govindaraj, V. Balasubramani, B. Yogeswari, M. Karuppusamy
Summary: In this study, p-PbS/n-Si photodiodes were successfully fabricated using the jet nebulizer spray pyrolysis technique. The effect of substrate temperature on the properties of PbS thin films was investigated. X-ray Diffraction (XRD) confirmed the crystal structure of the films, while Field Emission Transmission Microscopy (FESEM) revealed changes in morphology with increasing temperature. The UV-Vis absorption spectrum showed an increase in bandgap with deposition temperature. The fabricated p-PbS/n-Si diode exhibited excellent rectification and photovoltaic properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Pawel Karasinski, Magdalena Zieba, Ewa Gondek, Jacek Niziol, Sandeep Gorantla, Krzysztof Rola, Alicja Bachmatiuk, Cuma Tyszkiewicz
Summary: In this study, composite silica-titania waveguide films were fabricated on glass substrates using a sol-gel method and dip-coating technique. The films exhibited stable optical properties over a long period of time and are suitable for application in evanescent wave sensors.
Article
Chemistry, Physical
Carlos E. Caballero-Guerecaa, M. R. Alfaro Cruza, E. Luevano-Hipolitoa, Leticia M. Torres-Martinez
Summary: Highly transparent ZnO films were successfully deposited on glass substrates using the sol-gel technique. The quality of the films was influenced by the concentration of zinc in the precursor solution and the annealing temperature. The films showed good crystallinity and preferential orientation, and exhibited high transmittance of over 90%.
SURFACES AND INTERFACES
(2023)
Article
Multidisciplinary Sciences
Amany M. El Nahrawy, Ali B. Abou Hammad, A. M. Mansour
Summary: Mesoporous P2O5 doped magnesium silicate (MS-P) thin films were prepared using the activated sol-gel method and calcinated at different temperatures. The study examined the effects of P2O5 content and calcinating temperature on the structure and optical properties of thin films, showing significant impacts on crystallization and optical band gap. The films demonstrated high transmittance in the visible range, with a blue shift in the optical band gap as P2O5 content and calcinating temperature increased. Refractive index remained constant in the visible zone.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Materials Science, Ceramics
Gizem Aydin Sobaci, Osman Burak Okan, Kursat Kazmanli, Refika Budakoglu
Summary: This study investigates the potential of using dual alkoxysilane precursor chemistry for depositing antireflection thin films on glass. The results show that the dual precursor chemistry can produce coatings with high mechanical and chemical resistance, while maintaining their antireflective properties during industrial tempering processes. The study also demonstrates that the laboratory dip coating process can be scaled up to a roller coating process for commercial solar modules and patterned glasses.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Angel de Jesus Morales-Ramirez, Margarita Garcia-Hernandez, Maria Luz Carrera-Jota, Paulina Garnica-Chavez, Brenely Gonzalez-Penguelly, Aristeo Garrido-Hernandez
Summary: Lu2Si2O7:Eu3+ thin films were prepared using sol-gel methods and dip coating, and exhibited a monoclinic structure with preferential orientation along a specific direction after heat treatment. The films showed strong emission from Eu3+ ions, with the optical yield and decay time increasing with the SiO2 content.
CERAMICS INTERNATIONAL
(2023)
Article
Polymer Science
Madalina Nicolescu, Daiana Mitrea, Cristian Hornoiu, Silviu Preda, Hermine Stroescu, Mihai Anastasescu, Jose Maria Calderon-Moreno, Luminita Predoana, Valentin Serban Teodorescu, Valentin-Adrian Maraloiu, Maria Zaharescu, Mariuca Gartner
Summary: The aim of this study was to develop Nb-doped ITO thin films for CO sensing applications. The films were prepared using a sol-gel method and characterized by various techniques. The results showed that the doped ITO films had a crystalline structure, low surface roughness, and high transmittance. The presence of Nb increased the electrical signal and the sensitivity to CO detection.
Article
Materials Science, Multidisciplinary
Seval Aksoy Pehlivanoglu, Ozgur Polat
Summary: ZnO and Ir-doped ZnO thin films were fabricated by sol-gel spin coating technique. The structures and properties of the films were investigated. The addition of Ir increased the volume of the unit cell, atomic packing fraction, and grain size of the thin films. Optical bandgap decreased with Ir substitution. The transmittance and optical dielectric properties were also affected by Ir doping.
Article
Materials Science, Ceramics
Renzhong Xue, Liuyang Zhao, Siyuan Chen, Hongxuan Chen, Mengru Cui, Xintao Bai, Tao Li, Dewei Liu, Haiyang Dai
Summary: The effects of A-site transition from Ca2+ to Cd2+ on the microstructure, morphology, and electrical properties of Ca(1-x)CdxCu(3)Ti(4)O(12) thin films were investigated. The films exhibited smooth and compact surfaces without cracks. The transition from Ca2+ to Cd2+ resulted in changes in grain size and electrical properties. In particular, the simultaneous occupancy of A sites by Ca2+ and Cd2+ improved the dielectric and nonlinear properties of Ca1-xCdxCu3Ti4O12 films.
CERAMICS INTERNATIONAL
(2023)