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, Multidisciplinary
D. Ait Elhaj, A. El Kissani, H. Ait Dads, H. Chaib, K. Elassali, A. Outzourhit
Summary: Copper iron tin sulfide (CFTS) thin films were prepared using a sol-gel spin-coating method without a sulfurization step. The optimal synthesis condition was found to be at 400 degrees Celsius for 40 minutes, resulting in pure phase thin films with good physical properties suitable for solar cell applications.
Article
Materials Science, Ceramics
Yan Liu, Zhibiao Ma, Yangyang Wang, Bingdong Yao, Jingxian He, Jing Li, Fengqing Zhang
Summary: In this study, a BTBF composite film was prepared using the sol-gel method on a FTO/glass substrate, and its structure, oxygen vacancy concentration, electrical properties, and aging were tested and analyzed at different annealing temperatures. The results showed that the sample annealed at 615°C exhibited the best crystallinity, ferroelectricity, and leakage current characteristics.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Aziz Nfissi, Mounir Belhajji, Abdelhak Chouiekh, Abdelilah Rjeb, Abdelfettah Barhdadi, Salaheddine Sayouri, Yahya Ababou
Summary: Cadmium oxide (CdO) thin films were successfully deposited on glass substrates by the sol-gel spin coating method. The effects of the annealing temperature and Zirconium (Zr) doping on the physical properties of the CdO thin films were investigated. It was found that 550 °C is the optimal annealing temperature with a good crystallinity for the CdO thin films. Then, by using this temperature, different Zr doping concentrations (0, 1, 3, 5 and 7%) were prepared at the same experimental conditions. The X-ray diffraction (XRD) patterns of all the as-prepared thin films showed a polycrystalline nature with a face centered cubic (FCC) structure and that Zr incorporated the sites of Cadmium (Cd) up to 3% concentration, while the excess Zr doping (x > 3%) aggregated at the grain boundaries of the CdO lattice. Scanning electron microscopy (SEM) analysis revealed homogeneous and dense grains distribution with a film thickness of 30 μm. The optical study showed an increase in optical transmittance of CdO with Zr doping up to 3% and then a decrease onwards within the same wavelength region. The optical band gap values increased from 2.41 to 2.67 eV with increasing Zr doping which was explained by the Burstein-Moss effect. The minimum electrical resistivity (5.32 x 10(-1) Ω·cm) was obtained for the film coated with 3% Zr using the four-probe method.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
M. I. Khan, Sabir Ali, Norah Alwadai, Ikram-ul-Haq, Muhammad Irfan, Hind Albalawi, Aljawhara H. Almuqrin, Maha M. Almoneef, Munawar Iqbal
Summary: ZnO, MoS2, MoS2/ZnO/glass, and ZnO/MoS2/glass thin films were deposited on glass substrates using chemical bath deposition, showing hexagonal structure and varied band gap energies. Heterostructured films have larger grain sizes and potential applications in perovskite solar cells.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Chun Huang, Chuanwei Huang, Yiqun Ni, Peng Lin, Nianqing Fu, Bo Fan, Baomin Xu, Wenfei Zhang
Summary: This study successfully controlled the hydrolysis intermediate species by adjusting the metal-halide chemical bonding strength, achieving a method for preparing high-quality SnO2 films using low-temperature solution. The SnO2 film helps to improve charge separation and transport efficiency in PSCs, while reducing charge recombination.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Haojie Qu, Yuxian Guo, Donghui Zhang, Bai Sun, Linli Yan
Summary: In this study, vanadium dioxide thin films were fabricated on Al2O3 substrates by sol-gel method and subsequent annealing process. The effects of annealing temperature on the structure, chemical state, surface morphology and electrical properties of the films were studied. The results showed that the films exhibited good phase transition property as the annealing temperature increased.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
M. F. Hasaneen, M. S. Shalaby, N. M. Yousif, A. K. Diab, E. F. El Agammy
Summary: Evenly Cr-doped CdO thin films were prepared with different percentages by the sol-gel method. The crystal structures were polycrystalline and the surface roughness increased with increasing Cr ratio. The optical band gap increased and Urbach energy decreased with increasing Cr ratio. The electrical resistivity and sheet resistance also decreased with increasing Cr ratio.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
A. El Kissani, D. Ait Elhaj, S. Drissi, A. Abali, A. Agdad, H. Ait Dads, L. Nkhaili, A. El Mansouri, H. Chaib, K. El Assali, A. Outzourhit
Summary: This study investigated the deposition of copper-cobalt tin sulfide thin films using a sol-gel spin-coating method. The annealing process at 300 degrees C in a nitrogen atmosphere for 60 minutes was found to produce pure CCTS thin films with promising properties for low-cost thin-film solar cells.
Article
Materials Science, Multidisciplinary
K. Meziane, A. El Hamidi, E. Elmahboub, S. Diliberto, A. El Hichou, A. Almaggoussi, N. Stein
Summary: In this study, zinc oxide thin films containing lithium were prepared using different lithium salt precursors, with films prepared using lithium nitrates showing the highest crystallographic quality and best optical and electrical properties. All ZnO films exhibited good transparency with an average transmission around 85% in the visible range.
Article
Energy & Fuels
Moustafa Ahmed, Ahmed Bakry, Essam R. Shaaban
Summary: In this study, highly transparent and conductive thin layers of ZnO-In2O3 were deposited using an electron beam gun. The effects of film composition on structure and physical properties were investigated. It was found that increasing the In2O3 content can decrease the energy gap, reduce resistivity and sheet resistance, and increase carrier concentration and carrier mobility.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Ceramics
Teldja Boucherka, Mariem Touati, Azzeddine Berbadj, Noureddine Brihi
Summary: Highly transparent and conductive thin films of pure and aluminum doped tin oxide were prepared on glass substrates using the sol-gel spin-coating method. The films exhibited polycrystalline structure, homogeneous surface morphology, and high transmittance in the visible and near infrared. The doped films showed the presence of additional elements and a band gap ranging from 3.82 to 3.89 eV. The films also displayed low resistivity and high figure of merits in the visible range, with the best performance observed for samples containing 2% aluminum.
CERAMICS INTERNATIONAL
(2023)
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
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)