Article
Nanoscience & Nanotechnology
Ramarajan Ramanathan, Selvakumar Nagarajan, Venkataramana Bonu, Priyanka Patel, Shubhangi Jamdar, Harish C. Barshilia, Ramesh Chandra Mallik
Summary: Thin film technology offers possibilities and advancements in gas sensor devices. Sb-doped nanometer thin-SnO2 films were developed for CO/NH3 gas detection. The structural, surface, optical, and resistivity properties were investigated as a function of film thickness. ATO thin films showed enhanced response towards CO/NH3 gas detection with better stability and selectivity for CO gas. The results indicate the potential application of nanometer ATO films for enhanced gas detection.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
R. Souissi, N. Bouguila, M. Bendahan, K. Aguir, T. Fiorido, M. Abderrabba, I Halidou, A. Labidi
Summary: The importance of detecting ozone and its impact on human health; Gas sensors based on In2S3 films prepared have high sensitivity and low detection limits; The gas sensor at a working temperature of 160 degrees Celsius exhibits good rapidity and selectivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ahmet Emre Kasapoglu, Saman Habashyani, Ali Baltakesmez, Demet Iskenderoglu, Emre Gur
Summary: This study successfully grew Sb-doped ZnO nanorods using a simple spray pyrolysis method, with XRD measurements indicating preferential c-axis (002) plane for all films, and no lattice distortion from Sb doping. Raman measurements showed Sb doping related modes, especially defect related, in ZnO nanorods, with excellent hydrogen gas sensor performance demonstrated by a 5.0 wt% Sb-doped ZnO nanorod sample.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
Zhidan Song, Long Zhang, Quan Zhou, Ziang Zhang, Zhaobo Dong, Lifan Nie, Qingyi Liu, Gebo Pan
Summary: To ensure safety in using hydrogen energy, highly sensitive hydrogen sensors are needed for early detection of hydrogen leaks. In this study, a low-cost process was used to fabricate PdO-decorated NiO hydrogen sensors capable of detecting sub-ppm H2 concentration. The results show that PdO doping significantly enhances the gas response to H2.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
M. Boomashri, P. Perumal, K. V. Gunavathy, Fatemah H. Alkallas, Amira Ben Gouider Trabelsi, Mohd Shkir, S. AlFaify
Summary: This paper investigates the gas-sensing properties of Sb-doped SnO2 thin films prepared through nebulizer-assisted spray pyrolysis. The results show that 0 to 5 wt% Sb doping improves the inherent characteristics of the transparent conducting oxide. The 2-wt%-Sb-doped SnO2 film exhibits a high response rate and suitable characteristics to detect 250 ppm ammonia as a gas sensor.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
S. P. Bharath, Kasturi V. Bangera
Summary: Aluminum-doped zinc oxide (AZO) thin films with varying doping concentrations were synthesized using spray pyrolysis technique, showing significant effects on grain size, electrical properties, and gas-sensing characteristics. Various characterization techniques were adopted to study the material formation and performance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
Thangavel Ravikumar, Logu Thirumalaisamy, Sridharan Madanagurusamy, Kalainathan Sivaperuman
Summary: Ammonia (NH3) production, storage, and transportation are susceptible to leaks, posing risks to the environment and human life. Detecting NH3 within the exposure limit is crucial for eliminating health hazards. Thin films of zinc ferrite (ZF) were deposited using spray pyrolysis at different substrate temperatures. The film deposited at 225 degrees C showed a good sensing response to 25 ppm of NH3 and exhibited stability over 90 days. This research demonstrates that ZF thin films can effectively detect NH3 in the environment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
M. Dharani Devi, A. Vimala Juliet, K. Hariprasad, V. Ganesh, H. Elhosiny Ali, H. Algarni, I. S. Yahia
Summary: The study investigated the structural, morphological, photoluminescence, and UV sensing properties of pure and Tb-doped NiO thin films coated on glass substrates using a cost-effective nebulizer spray technique. The structural studies confirmed a polycrystalline cubic structure with (111) preferred orientation. The photodetector performance of the films was improved by Tb doping, with a decrease in bandgap values and improved rise and decay times observed.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Physics, Multidisciplinary
Seyyedeh Parisa Abedi, Mohammad Bagher Rahmani, Farkhondeh Rezaii
Summary: In this research, alpha-Fe2O3 (hematite) thin films were deposited on glass substrates at various growth temperatures. The morphological, structural, and optical properties of the samples were characterized. The sensing characteristics of the samples for ethanol were investigated and the growth conditions and sensing parameters of hematite thin films were optimized for ethanol sensing applications.
Article
Nanoscience & Nanotechnology
Md. Hasnat Rabbi, Arqum Ali, Chanju Park, Jin Jang
Summary: A high-performance, coplanar amorphous In0.5Ga0.5O (a-IGO) thin film transistor (TFT) on a polyimide (PI) substrate deposited by spray pyrolysis (SP) is reported. The SP a-IGO film has good stability and performance, exhibiting a linear mobility over 30 cm(2) V-1 s(-1) and a negligible shift in threshold voltage under positive bias. Furthermore, a seven-stage ring oscillator made of SP a-IGO TFTs exhibits a high oscillation frequency with a low propagation delay time.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Tingting Wang, Bingguo Xue, Hao Cui, Yingying Zhang, Manmen Liu, Jialin Chen, Ming Wen, Wei Wang, Xudong Sun, Shaohong Liu
Summary: LuAG:Ce is an important color converter in the white lighting industry, with LuAG:Ce film offering advantages such as efficient heat dissipation and rare earth conservation. The preparation process and photoluminescence performance of LuAG:Ce film were investigated, showing that increasing Ce3+ doping concentration enhanced the emission intensity. By coupling Ce3+ doped LuAG:Ce film with a blue laser, white light emission was successfully achieved.
Article
Physics, Condensed Matter
V. Doni Pon, K. S. Joseph Wilson, K. Hariprasad, V Ganesh, H. Elhosiny Ali, H. Algarni, I. S. Yahia
Summary: In this study, pure and Al-doped ZnO thin films were deposited on glass substrates using a cost-effective nebulizer spray technique. The structural, optical, and electrical properties of the thin films were investigated, with the 1% Al-doped ZnO thin film showing the best photodetection performance, making it a promising candidate for photodetector applications.
SUPERLATTICES AND MICROSTRUCTURES
(2021)
Article
Nanoscience & Nanotechnology
Jassim M. Marei, Abed A. Khalefa, Qutaiba A. Abduljabbar, Jamal M. Rzaij
Summary: Research on heterostructure thin films of indium oxide and zinc oxides prepared using the chemical spray pyrolysis technique at various substrate temperatures revealed that the crystallinity and size of the particles were enhanced with increasing temperature. SEM images showed that the particle shapes and connections varied with temperature, and the films showed potential applications in the detection of nitrogen dioxide gas.
JOURNAL OF NANO RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
V. Ganesh, I. S. Yahia
Summary: This study discusses the performance of highly sensitive Ce-doped Bi2S3 thin film-based photodetectors. Bi2S3:Ce thin films with varying Ce concentrations of 0%, 2%, 4%, 6%, and 8% were successfully coated on glass substrates using the nebulizer spray pyrolysis method. The physical properties of the films, such as crystalline size, morphology, and optical response, were investigated using various techniques including XRD, FESEM, atomic force microscopy, optical absorption spectrophotometry, and photoluminescence spectroscopy. The 4% Ce-doped Bi2S3 film showed higher crystallinity and exhibited high responsivity and detectivity, making it suitable for high-performance photodetection.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Funmilayo Hannah Abejide, Akintunde Ayodeji Ajayi, Samson Ibukun Akinsola, Aderemi Babatunde Alabi
Summary: In this study, gallium oxide thin films were synthesized using the cost-effective spray pyrolysis method on silicon substrates. The chemical bonding and surface morphology were analyzed using Fourier transform infrared and scanning electron microscopy. Optical studies revealed high absorbance in the UV region and an optical band gap of 4.9 eV for the films.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Physics, Applied
R. P. Yadav, Tanuj Kumar, V. Baranwal, Vandana, Manvendra Kumar, P. K. Priya, S. N. Pandey, A. K. Mittal
JOURNAL OF APPLIED PHYSICS
(2017)
Article
Electrochemistry
Kavyashree, Shrikant S. Raut, Shama Parveen, Babasaheb R. Sankapal, S. N. Pandey
Article
Chemistry, Physical
Kavyashree, R. K. Pandey, R. P. Yadav, Manvendra Kumar, H. P. Bhasker, A. K. Mittal, A. C. Pandey, S. N. Pandey
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
Kavyashree, Shama Parveen, Shrikant S. Raut, Manoj K. Tiwari, B. R. Sankapal, S. N. Pandey
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Electrochemistry
Shama Parveen, Kavyashree, S. N. Pandey
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
Shama Parveen, Kavyashree, S. N. Pandey
JOURNAL OF POWER SOURCES
(2020)
Article
Materials Science, Multidisciplinary
Kavyashree, R. P. Yadav, Shama Parveen, Leela Pradhan Joshi, S. N. Pandey
MATERIALS RESEARCH BULLETIN
(2019)
Article
Thermodynamics
Kavyashree, Shama Parveen, Suneel Kumar Sharma, S. N. Pandey
Editorial Material
Physics, Mathematical
V. K. Chandrasekar, A. K. Tiwari, S. N. Pandey, M. Senthilvelan, M. Lakshmanan
JOURNAL OF MATHEMATICAL PHYSICS
(2020)
Article
Thermodynamics
Shama Parveen, Kavyashree, Suneel Kumar Sharma, S. N. Pandey
Summary: Developing an efficient, clean, sustainable, and reliable energy storage system remains a key challenge, where supercapacitors show great promise as an emerging type of energy storage system; a novel composite electrode has been synthesized using an eco-friendly and cost-effective method, displaying high specific capacity and ultra-high energy density, offering potential practical applications in power backup, portable electronic devices, and energy storage systems.
Article
Engineering, Electrical & Electronic
Savita Patil, Shrikant Raut, Bidhan Pandit, S. N. Pandey, Shilpa A. Pande, Babasaheb Sankapal
Summary: One-dimensional iron hydroxide@cadmium hydroxide nanostructures were prepared, showing core-shell architecture for electrochemical supercapacitive electrode design. The electrode exhibited high specific capacitance at a specific current density and retained 52% of its initial capacity after 5000 cycles.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Shama Parveen, Kavyashree, Suneel Kumar Sharma, Priyanka Maurya, S. N. Pandey
Summary: In this study, binder free yttrium hydroxide electrodes were prepared using the SILAR method and their electrochemical performances were investigated. The Y_20 electrode with 20 SILAR cycles showed superior electrochemical performance and cycle stability, suggesting great potential for energy harvesting, power backup, and portable devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Suneel Kumar Sharma, Kavyashree, Shama Parveen, S. N. Pandey
Summary: In this study, nanoflakes tuberose structured Sr (OH)(2)/CoO(OH) thin films were fabricated using the layer by layer method. The electrode's crystalline nature, chemical composition, and oxidation states were analyzed. The experimental results showed excellent specific capacitance and cycle stability of the electrode, and a solid-state symmetrical supercapacitor device with high energy and power densities was successfully fabricated.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Electrochemistry
Kavyashree, Shrikant S. Raut, Babasaheb R. Sankapal, S. N. Pandey
ELECTROCHIMICA ACTA
(2017)
Article
Chemistry, Physical
R. P. Yadav, D. C. Agarwal, Manvendra Kumar, Parasmani Rajput, D. S. Tomar, S. N. Pandey, P. K. Priya, A. K. Mittal
APPLIED SURFACE SCIENCE
(2017)