I have been actively engaged in synthesizing and designing MXenes thin films using bottom-up approaches. I specialized in the deposition of MXenes using a bottom-up approach via sputtering. This process involved the meticulous preparation of elemental targets, including transition metals and carbon or nitrogen sources. By utilizing high-energy particle bombardment in a vacuum chamber, I facilitated the ejection of atoms from the target surface, which then deposited onto a substrate to form a thin film of MXene material. Post-deposition treatments, such as annealing, were employed to enhance the crystallinity and properties of the films. This method allowed for precise control over film thickness and composition, making it highly suitable for applications in electronics, energy storage, and , I have been working on the fabrication and characterization of metal oxide-based gas sensors by employing DC and RF magnetron sputtering techniques. My experience extends to wor
RESEARCH, TEACHING, or OTHER INTERESTS
Materials Science, Surfaces, Coatings and Films, Condensed Matter Physics, Multidisciplinary
Emerging Materials in Recent Development of Volatile Organic Compound (VOC) Sensors Amit Kumar Gangwar, Rahul Godiwal, Preetam Singh New Generation Advanced Materials for Regenerative Development, 2026 Air pollution has become a severe hazard to the public in recent decades due to the growth of industry, the manufacturing of more cars, and population growth. Several dangerous compounds are released into the atmosphere by automobiles and companies when they produce exhaust, which can lead to environmental dangers as well as pollution and poor air quality. These substances include volatile organic chemicals (VOCs), nitrogen oxides (NOx), carbon monoxide (CO), sulphur oxide (SO2), ammonia (NH3) etc. When ingested by a person, these dangerous gases can damage biological tissues irreparably [1, 2].
Strain-induced photocurrent enhancement in thin films of topological insulators (Bi2Te3) Animesh Pandey, Sanjay Sharma, Amit Kumar Gangwar, Mandeep Kaur, Preetam Singh, Sudhir Husale Journal of Materials Chemistry C, 2023 Topological insulators are anticipated to be a viable option for flexible near-infrared (NIR) photodetection that are a basic potential comportment for future photoelectric applications, wearable devices, and potential defence applications.
Common Fixed Points for Asymptotically Regular Kannan -Lipschitzian Semigroup in the Variable Exponent Sequence Spaces A Gangwar, S Rawat Applications of Fixed-Point Theorem: Extending Classical Results to Modern … , 2026 2026
Comprehensive review of Sputtered ZnO Thin Films and Hybrid Composites for High-Performance Chemiresistive Gas Sensors P Godara, R Dahiya, A Sheokand, M Bulla, S Sindhu, A Kumar, ... Composites Part B: Engineering, 113603 , 2026 2026
NO2 Gas Sensing with Al-Enriched Ti3C2Tx - Structural Engineering and Sensing Response R Espinoza-González, AK Gangwar, F Ruz, X Villa, N Carvajal, ... Materials Science in Semiconductor Processing , 2026 2026
Growth dynamics and surface scaling of air-oxidized NiO thin films from sputtered Ni C Kumar, M Shrivastav, J Yadav, V Kashyap, AK Gangawar, A Kumawat, ... Vacuum, 115039 , 2025 2025
Physiochemical and electrochemical analysis of the multi-metallic cobalt based spinel oxides: NixFe1-xCo2O4 (x = 0, 0.3, 0.5 and 0.7) nanoparticles MRV Mudaliar Mahesh Margoni , N. Naresh , Amit Kumar Gangwar , Govindan ... Journal of Alloys and Compounds, https://doi.org/10.1016/j.jallcom.2025.1 , 2025 2025
Fabrication of durable and sensitive SnO 2 -Based gas sensor for NO 2 detection P Berwal, P Singh, A Sheokand, S Rani, S Sihag, M Bulla, P Chaudhary, ... Applied Physics A 131 (9), 700 , 2025 2025 Citations: 2
Fixed Point Results for Enriched Interpolative Type Multivalued Contractions via a Simulation Function A Gangwar, S Rawatb, H Aydi, S Aljohani, N Mlaiki European Journal of Pure and Applied Mathematics 18 (2), ID-5792 , 2025 2025 Citations: 1
On deformable fractional order implicit differential equations involving orthogonal super metric spaces A Gangwar, S Rawat, H Aydi, S Mansour AIMS Mathematics 10 (6), 14502-14514 , 2025 2025 Citations: 1
Enriched multivalued contractions on double controlled metric type spaces with an application A Gangwar, S Rawat, H Isik, RC Dimri Adv. Fixed Point Theory 14, Article ID 16 , 2024 2024 Citations: 4
Magnetron configurations dependent room temperature sputtered ZnO thin films for highly responsive, stable, and selective CO gas sensing R Godiwal, AK Gangwar, P Singh Materials Letters 357, 135787 , 2024 2024 Citations: 9
Temperature-dependent p-n switching for highly selective CO gas sensing based on mixed phases of magnetron sputtered (p)SnO-(n)SnO2 thin films PS Amit Kumar Gangwar ,Rahul Godiwal, Urvashi Varshney, Sourav Das, Jai S ... Applied Surface Science 655, 159607 , 2024 2024 Citations: 22
Low temperature operable and high performing Pd-ZnO thin films sputtered at room temperature for ultrafast detection of CO gas PS Rahul Godiwal, Amit Kumar Gangwar , Ashwani Kumar , Govind Gupta Optical Materials 148, 114919 , 2024 2024 Citations: 19
Magnetron configurations dependent room temperature sputtered ZnO thin films for highly responsive, stable, and selective CO gas sensing PS Rahul Godiwal, Amit Kumar Gangwar Materials Letters 357, 135787 , 2023 2023
Solution of differential inclusion problem in controlled S-metric spaces via new multivalued fixed point theorem A Gangwar, S Rawat, RC Dimri The Journal of Analysis 31 (4), 2459-2472 , 2023 2023 Citations: 14
Synthesis and growth mechanism of ZnO nanocandles using thermal evaporation and their efficient CO sensing performance R Godiwal, AK Gangwar, AK Verma, P Vashishtha, A Kumar, V Chawla, ... Micro and Nanostructures 184, 207692 , 2023 2023 Citations: 14
Highly efficient, self-powered, and air-stable broadband photodetector based on SnSe thin film P Vashishtha, P Goswami, P Prajapat, AK Gangwar, P Singh, G Gupta Materials Science and Engineering: B 297, 116808 , 2023 2023 Citations: 35
Room temperature RF magnetron sputtered nanocrystalline NiO thin films for highly responsive and selective H2S gas sensing at low ppm concentrations S Srivastava, AK Gangwar, A Kumar, G Gupta, P Singh Materials Research Bulletin 165, 112330 , 2023 2023 Citations: 38
Strong light-matter interaction and antireflection functionality of f-TiO2/GaN heterostructure broadband photodetector P Vashishtha, R Tanwar, P Prajapat, AK Gangwar, L Goswami, P Singh, ... Journal of Alloys and Compounds 948, 169735 , 2023 2023 Citations: 44
Investigating the properties of nickel oxide thin films prepared via DC reactive magnetron sputtering for potential application in gas sensing S Srivastava, AK Gangwar, R Godiwal, G Gupta, P Singh Materials Today: Proceedings , 2023 2023 Citations: 5
Impact of O2/Ar gas ratio on the DC reactive magnetron sputtered NiO thin films for ultrafast detection with high sensitivity and selectivity towards H2S gas PS Stuti Srivastava, Amit Kumar Gangwar, Ashwani Kumar, Govind Gupta Micro and Nanostructures 184, 207678 , 2023 2023 Citations: 9
MOST CITED SCHOLAR PUBLICATIONS
Preparation of nanocrystalline Pd/SnO2 thin films deposited on alumina substrate by reactive magnetron sputtering for efficient CO gas sensing AK Gangwar, R Godiwal, S Srivastava, P Pal, G Gupta, P Singh Materials Research Bulletin 148, 111692 , 2022 2022 Citations: 45
Strong light-matter interaction and antireflection functionality of f-TiO2/GaN heterostructure broadband photodetector P Vashishtha, R Tanwar, P Prajapat, AK Gangwar, L Goswami, P Singh, ... Journal of Alloys and Compounds 948, 169735 , 2023 2023 Citations: 44
Magnetron configurations dependent surface properties of SnO2 thin films deposited by sputtering process AK Gangwar, R Godiwal, J Jaiswal, V Baloria, P Pal, G Gupta, P Singh Vacuum 177, 109353 , 2020 2020 Citations: 40
Room temperature RF magnetron sputtered nanocrystalline NiO thin films for highly responsive and selective H2S gas sensing at low ppm concentrations S Srivastava, AK Gangwar, A Kumar, G Gupta, P Singh Materials Research Bulletin 165, 112330 , 2023 2023 Citations: 38
Highly efficient, self-powered, and air-stable broadband photodetector based on SnSe thin film P Vashishtha, P Goswami, P Prajapat, AK Gangwar, P Singh, G Gupta Materials Science and Engineering: B 297, 116808 , 2023 2023 Citations: 35
Room temperature sputtered nanocrystalline SnO2 thin films sensitized with Pd nanoparticles for high performance CO gas sensing application AK Gangwar, S Srivastava, R Godiwal, J Jaiswal, P Vashishtha, S Pal, ... Optical Materials 128, 112362 , 2022 2022 Citations: 27
Temperature-dependent p-n switching for highly selective CO gas sensing based on mixed phases of magnetron sputtered (p)SnO-(n)SnO2 thin films PS Amit Kumar Gangwar ,Rahul Godiwal, Urvashi Varshney, Sourav Das, Jai S ... Applied Surface Science 655, 159607 , 2024 2024 Citations: 22
Low temperature operable and high performing Pd-ZnO thin films sputtered at room temperature for ultrafast detection of CO gas PS Rahul Godiwal, Amit Kumar Gangwar , Ashwani Kumar , Govind Gupta Optical Materials 148, 114919 , 2024 2024 Citations: 19
Influence of magnetron configurations on the structure and properties of room temperature sputtered ZnO thin films R Godiwal, AK Gangwar, J Jaiswal, P Vashishtha, M Hossain, P Pal, ... Physica Scripta 96 (1), 015811 , 2021 2021 Citations: 18
Effect of shock wave on optical properties of Propyl p-hydroxybenzoate single crystal: A self-defocusing third order nonlinear optical material D Nayak, N Vijayan, M Kumari, P Vashishtha, SK Saini, AK Gangwar, ... Journal of Physics and Chemistry of Solids 167, 110768 , 2022 2022 Citations: 16
Solution of differential inclusion problem in controlled S-metric spaces via new multivalued fixed point theorem A Gangwar, S Rawat, RC Dimri The Journal of Analysis 31 (4), 2459-2472 , 2023 2023 Citations: 14
Synthesis and growth mechanism of ZnO nanocandles using thermal evaporation and their efficient CO sensing performance R Godiwal, AK Gangwar, AK Verma, P Vashishtha, A Kumar, V Chawla, ... Micro and Nanostructures 184, 207692 , 2023 2023 Citations: 14
Strain-induced photocurrent enhancement in thin films of topological insulators (Bi 2 Te 3) A Pandey, S Sharma, AK Gangwar, M Kaur, P Singh, S Husale Journal of Materials Chemistry C 11 (40), 13838-13847 , 2023 2023 Citations: 10
Magnetron configurations dependent room temperature sputtered ZnO thin films for highly responsive, stable, and selective CO gas sensing R Godiwal, AK Gangwar, P Singh Materials Letters 357, 135787 , 2024 2024 Citations: 9
Impact of O2/Ar gas ratio on the DC reactive magnetron sputtered NiO thin films for ultrafast detection with high sensitivity and selectivity towards H2S gas PS Stuti Srivastava, Amit Kumar Gangwar, Ashwani Kumar, Govind Gupta Micro and Nanostructures 184, 207678 , 2023 2023 Citations: 9
Effect of shock wave on surface morphology and optical properties of acid phthalate based single crystals M Kumari, N Vijayan, D Nayak, P Vashishtha, AK Gangwar, G Gupta, ... Optical Materials 133, 112986 , 2022 2022 Citations: 9
Investigating the properties of nickel oxide thin films prepared via DC reactive magnetron sputtering for potential application in gas sensing S Srivastava, AK Gangwar, R Godiwal, G Gupta, P Singh Materials Today: Proceedings , 2023 2023 Citations: 5
Enriched multivalued contractions on double controlled metric type spaces with an application A Gangwar, S Rawat, H Isik, RC Dimri Adv. Fixed Point Theory 14, Article ID 16 , 2024 2024 Citations: 4
Fabrication of durable and sensitive SnO 2 -Based gas sensor for NO 2 detection P Berwal, P Singh, A Sheokand, S Rani, S Sihag, M Bulla, P Chaudhary, ... Applied Physics A 131 (9), 700 , 2025 2025 Citations: 2
Common fixed points and convergence results for α-Krasnosel’skii mappings A Gangwar, A Tomar, M Sajid, RC Dimri AIMS Math 8, 9911-9923 , 2023 2023 Citations: 2