Article
Engineering, Electrical & Electronic
M. Mahdi Shahidi, T. Hoda Enayati, Agnes C. C. Nkele, Ugochi K. K. Chime, Fabian I. I. Ezema
Summary: In this study, TiO2 films were prepared on FTO substrates through spray pyrolysis and their electrochemical properties were investigated after TiCl4 treatment. The structure, surface morphologies, optical and electrochemical characteristics of the synthesized films were analyzed using various techniques. The films exhibited anatase phase with a prominent peak at the (004) plane in XRD and Raman spectra. Porous films with an average surface roughness of 36.95 nm were obtained. Optical studies showed increased transmittance and band gap energy ranging from 2.71 to 2.76 eV. The films also exhibited improved carrier mobility and charge storage capability. These synthesized films have potential applications in solar cells and supercapacitors.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Md. Faruk Hossain, Md. Abdul Hadi Shah, Md. Ariful Islam, Md. Sazzad Hossain
Summary: The study systematically explored the impact of antimony doping concentration on the physical properties of transparent conducting SnO2 thin films, finding that the crystallite size decreases with increasing doping, while the optical transmittance decreases and the optical band gap increases. The films with different dopant concentrations exhibit varied optical and electrical properties, with potential applications in optoelectronic devices.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Murat Kellegoz, Hilal Cako, Seda Uzkalan, Salih Kose
Summary: In this study, undoped and cobalt-doped cadmium sulfide (CdS) films were grown on glass substrates using ultrasonic spray pyrolysis technique. The effects of cobalt doping on the electrical, optical, structural, and morphological properties of the CdS films were investigated.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Condensed Matter
Y. Vijayakumar, P. Nagaraju, T. Sreekanth, Uppula Rushidhar, P. S. Reddy
Summary: V2O5 has been synthesized using chemical spray pyrolysis technique, with studies conducted on its structural, morphological, optical, and electrical properties. It was found that an increase in precursor volume affects the crystallinity and optical band gap of the thin films. Gas sensing investigations revealed the selectivity of the film towards various volatile organic vapours.
SUPERLATTICES AND MICROSTRUCTURES
(2021)
Article
Optics
Raghavendra Bairy, D. Haleshappa, M. S. Murari
Summary: The authors in this study presented the evaluation of structural and third-order nonlinear optical properties of lead-doped zinc oxide thin films. Through various analyses, it was found that the films exhibited enhanced optical properties with increasing doping content. Additionally, z-scan analysis revealed significant nonlinear optical effects, showcasing the potential of these thin films for optoelectronic device applications.
APPLIED PHYSICS B-LASERS AND OPTICS
(2021)
Article
Materials Science, Multidisciplinary
A. Abdel-Galil, Mai S. A. Hussien, I. S. Yahia
Summary: Spray pyrolysis was used to deposit nanostructured thin films of ZnO and ZnO: F on soda-lime glass substrates at 400 degrees C. Characterization by XRD and AFM revealed the wurtzite hexagonal structure and mean grain size in nanoscale of the deposited films. Optical parameters indicated a slight decrease in the direct optical band gap of ZnO film with F doping level. The photocatalytic activity of F doped ZnO films was evaluated for phenol removal from water, showing high efficiency with 3%F doped ZnO film having the highest constant rate of phenol photodegradation.
Article
Chemistry, Physical
R. Ramarajan, Jean Maria Fernandes, M. Kovendhan, Gnaneshwar Dasi, Nandarapu Purushotham Reddy, K. Thangaraju, D. Paul Joseph
Summary: This study investigates the temperature-dependent electrical properties of Ta-doped SnO2 thin films and their resistance behavior in the high temperature regime. The optimal Ta dopant concentration is found to be 4 wt%, showing potential for wide band gap TCO electrode in various optoelectronic applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Ebitha Eqbal, E. I. Anila
Summary: In this study, P-type copper doped tin oxide thin films were successfully prepared using chemical spray pyrolysis method and their properties were further investigated. Transparent homojunction diodes fabricated using this method demonstrated potential applications.
Article
Materials Science, Multidisciplinary
Sh. Tabatabai Yazdi, R. Pilevar Shahri, S. Shafei
Summary: In this study, indium-doped vanadium pentoxide thin films were prepared with different doping levels using the spray pyrolysis technique. The introduction of indium led to a more disordered structure, smaller crystallite size, increased transparency, and a blue shift in band gap energy. The films were found to be n-type semiconductors, with decreased electron concentration and increased resistivity upon indium doping.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Physics, Condensed Matter
P. Shayeghi Sabzevar, M. M. Bagheri-Mohagheghi, A. Shirpay
Summary: In this study, SnO2:F-rGO thin films were prepared by spray pyrolysis method on glass substrates. The effect of rGO and chemical reduction with Hydrazine on the structural, electrical, and optical properties of FTO:rGO thin films has been investigated. The results showed that the reduction agent increased grain size and decreased porosity, and the optimal electrical performance was achieved in the thin film with [F/Sn] = 0.5.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Engineering, Electrical & Electronic
Raghavendra Bairy, K. N. Narasimhamurthy
Summary: This study investigates the optical linear and nonlinear properties of Cd1-xZnxS films under different annealing temperatures and Cd/Zn ratios. The results show that annealing temperature affects crystallite size, optical band gap, and nonlinear optical parameters. An increase in annealing temperature enhances the nonlinear optical components of the films, making them suitable for photonic device applications.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
R. Rathika, M. Kovendhan, D. Paul Joseph, Rekha Pachaiappan, Jean Maria Fernandes, Reddivari Muniramaiah, K. Vijayarangamuthu, C. Venkateswaran, K. Asokan
Summary: This work investigates the influence of high energy swift heavy ion beams on the properties of spray-deposited thin niobium pentoxide films, revealing changes in crystallite size, optical band gap, surface roughness, and recrystallization effects. The generation of additional defect levels due to irradiation leads to lower optical band gaps and significant modifications in transport parameters, with recrystallization observed at critical fluence levels. The results are discussed in detail by correlating calculated parameters with observed optical and electrical data obtained from various techniques.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
B. Tiss, M. Benfraj, N. Bouguila, M. Kraini, S. Alaya, D. Cristea, C. Croitoru, V Craciun, D. Craciun, P. Prepelita, I-L Velicu, V Tiron, C. Moura, L. Cunha
Summary: This study investigated the structure, morphology, optical characteristics, and photodegradation efficiency of silver-doped indium sulfide thin films under different annealing conditions. Annealing treatments caused changes in crystallite size, surface roughness, and optical transmittance, leading to variations in the optical band gap and photodegradation efficiency of methylene blue solution. Regardless of the annealing type, the photodegradation efficiency of methylene blue solution increased after annealing.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Metwally Madkour
Summary: In this study, CuxO thin films were successfully prepared using ultrasonic spray pyrolysis with a single coordinated organic source as the precursor. Various operational parameters were investigated, and the precursor and thin films were characterized using multiple techniques. By optimizing the deposition temperature, different compositions of CuxO thin films were obtained, and a heterostructured photocatalyst of CuO/Cu2O thin film exhibited enhanced photocatalytic activity with low recombination rates and improved charge assembly.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Victor V. Petrov, Irina O. Ignatieva, Maria G. Volkova, Irina A. Gulyaeva, Ilya V. Pankov, Ekaterina M. Bayan
Summary: Transparent Al-doped ZnO films were synthesized by solid-phase pyrolysis and characterized by XRD, SEM, and TEM. The films exhibit wurtzite structure and have a uniform distribution of nanoparticles. The introduction of 1% Al results in a narrowed band gap and improved response time to radiation.