Optimizing ammonia gas sensor performance: Investigating the influence of Mg doped ZnO root like nanostructures for enhanced gas sensing application S.A. Jadhav, G. Umadevi, M.B. Awale, K.S. Kanse, Y.S. Joshi, Y. Purushotham, S.D. Lokhande, V.D. Mote Materials Letters, 2025 This work presents the synthesis of Mg-ZnO root-like nanostructures using chemical spray pyrolysis . Structural, morphological, gas sensing and optical properties were investigated. The films exhibit a hexagonal wurtzite ZnO crystal structure. Morphology changes from grain-like (2 % Mg) to root-like (4 % Mg). The 4 % Mg-ZnO nanostructures detect 5 ppm ammonia gas with a quick response (30 s) and recovery time (7 s). Higher Mg doping influences the optical energy bandgap. Mg-ZnO is a promising material for ammonia gas sensors and optoelectronic devices due to its gas sensing and optical properties.
Impact of Copper Substitution on the Structural Refinement, Magnetic Behaviour, and Dielectric Response of Ni–Zn Spinel Ferrites Arti A. Ingle, Akash V. Fulari, Rameshwar B. Borade, S.B. Kadam, V. D. Mote, A. B. Kadam, Sagar E. Shirsath, R. H. Kadam Physics of the Solid State, 2025 Abstract Ni0.5Zn0.5−xCuxFe2O4 (x = 0, 0.05, 0.1, 0.15, 0.2, 0.25) spinel ferrite nanoparticles were synthesized via the sol-gel auto-combustion method and sintered at 700°C for 5 h. Thermogravimetric and differential thermal analysis (TG-DTA) revealed the thermal decomposition behaviour. Single phase ferrite with Fd‑3m space group was confirmed by the Rietveld refinement of X-ray diffraction data. The distribution of cation among octahedral B and tetrahedral A-site was estimated by the computational method. With increasing copper substitution, the lattice parameter decreased while X-ray density increased. Crystallite sizes ranged from 22 to 24 nm, consistent with the Williamson–Hall method, and strain decreased. Fourier-transform infrared (FTIR) spectroscopy confirmed the spinel structure. High-resolution transmission electron microscopy (HR-TEM) and field emission scanning electron microscopy (FE-SEM) showed grain sizes between 70 and 130 nm. Energy dispersive X-ray (EDAX) analysis confirmed chemical purity. Magnetic studies showed an increase in saturation magnetization and coercivity (42 to 57 Oe) with copper substitution, while dielectric behaviour followed the Maxwell–Wagner model.
Mn-Doped CuO Nanostructure Films Based Gas Sensor for High Sensitive and Selective Formaldehyde Detection at a Room Temperature Santhosh Laxman Bhise, Mangesh Baburao Awale, Sandhya Anil Jadhav, Shweta Dnyaneshwar Lokhande, Lahu Hanmantrao Kathwate, Dnyaneshwar Vitthal Dake, Nita Dnyaneshwar Raskar, Godhavarti Umadevi, Babasaheb Nivrutti Dole, Vishwanath. D. Mote Chemistryselect, 2025 The development of an efficient gas‐sensing materials is crucial for applications in healthcare, industry, environmental monitoring, and agriculture. In this study, Mn‐doped CuO thin films were synthesized and evaluated for their gas‐sensing properties. The fabricated films exhibited a monoclinic CuO structure with (002) and (111) orientations, and their morphology reveals a uniform, spherical‐like crystalline distribution. Mn doping adjusts the optical bandgap from 2.11 eV to 2.03 eV. Compared with pure, 3% Mn‐doped CuO‐based sensor demonstrated a high response value of 82% to 20 ppm formaldehyde at room temperature with swift response and recovery times of 9 and 36 s, respectively. The high sensitivity and stability of these sensors make Mn‐doped CuO films a promising candidate for practical gas detection applications.
Metal–Organic Frameworks for Gas Sensing Applications Shweta D. Lokhande, V. A. Mane, N. D. Raskar, D. V. Dake, Ramprasad B. Sonpir, et al. Materials Science for Future Applications Emerging Development and Future Perspectives, 2025
Crystallographic, morphological and W-H models investigations on Mn substituted ZnO nanocrystals Iranian Journal of Materials Science and Engineering, 2015
Synthesis and structural study on co substituted ZnO nanoscale crystals Asian Journal of Chemistry, 2011
Role of Pr substituted Eu-123 high Tc cuprate superconductors Asian Journal of Chemistry, 2011
RECENT SCHOLAR PUBLICATIONS
Tailoring Structural and Magnetic Properties of Co–Zn Ferrite Nanoparticles via Erbium Substitution PA Ingle, SB Kadam, RB Borade, KP Gattu, VD Mote, RH Kadam, ... Journal of Inorganic and Organometallic Polymers and Materials, 1-15 , 2025 2025 Citations: 2
Corrigendum to “Designing reduced graphene oxide decorated Ni doped δ-MnO 2 nanocomposites for supercapacitor applications”,[Mater. Sci. Semiconduct. Process. 178 (2024) 108451] ND Raskar, A Kandasami, BN Dole, S Tyagi, C Dong Materials Letters 401, 15 , 2025 2025 Citations: 1
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Metal–Organic Frameworks for Gas Sensing Applications SD Lokhande, VA Mane, ND Raskar, DV Dake, RB Sonpir, BN Dole, ... Materials Science for Future Applications, 102-111 , 2025 2025 Citations: 1
Optimizing ammonia gas sensor performance: Investigating the influence of Mg doped ZnO root like nanostructures for enhanced gas sensing application SA Jadhav, G Umadevi, MB Awale, KS Kanse, YS Joshi, Y Purushotham, ... Materials Letters 389, 138343 , 2025 2025 Citations: 4
Defect engineering in bilayer n-doped tungsten-modified GO/RGO hybrid composite: A comparative study with tungsten carbide for supercapacitor applications DV Dake, ND Raskar, VA Mane, RB Sonpir, K Asokan, MD Shirsat, ... Journal of Molecular Structure 1331, 141617 , 2025 2025 Citations: 22
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Ni infused ZnO flake-like nanostructure for enhanced gas sensing performance SD Lokhande, MB Awale, LH Kathwate, VB Zadke, VD Mote Journal of Molecular Structure 1322, 140389 , 2025 2025 Citations: 6
Li 3+ swift heavy ion irradiation with 50 MeV kinetic energy influencing distinct properties and antifungal activity of Mn/ZnO thin films HA Khawal, ND Raskar, DV Dake, VA Mane, RB Sonpir, VD Mote, ... Journal of Materials Research 40 (3), 404-417 , 2025 2025 Citations: 2
Impact of copper substitution on the structural refinement, magnetic behaviour, and dielectric response of Ni–Zn spinel ferrites AA Ingle, AV Fulari, RB Borade, SB Kadam, VD Mote, AB Kadam, ... Physics of the Solid State 67 (2), 148-163 , 2025 2025 Citations: 6
Mn‐Doped CuO Nanostructure Films Based Gas Sensor for High Sensitive and Selective Formaldehyde Detection at a Room Temperature SL Bhise, MB Awale, SA Jadhav, SD Lokhande, LH Kathwate, DV Dake, ... ChemistrySelect 10 (3), e202405059 , 2025 2025 Citations: 2
Optical and ammonia sensing properties of Mn doped ZnO nanostructured films for gas sensors application SA Jadhav, MB Awale, SD Lokhande, G Umadevi, ND Raskar, ... Emergent Materials 7 (6), 2907-2920 , 2024 2024 Citations: 13
Highly sensitive and selective gas sensors for ethanol based on Mn doped ZnO nanoflakes M Awale, SD Lokhande, LH Kathwate, M Vasundhara, VD Mote, ... Journal of Cluster Science 35 (7), 2273-2282 , 2024 2024 Citations: 5
Ultrasensitive and selective detection of ammonia gas at room temperature of La-doped ZnO thin films VS Chandak, MB Kumbhar, LH Kathwate, VD Mote, PM Kulal Applied Physics A 130 (9), 611 , 2024 2024 Citations: 19
Green synthesis of ZnCeO 2 and ZnCuCeO 2 nanocomposites for enhanced gas sensing: a synergistic approach towards sustainable ammonia detection G Umadevi, KG Krishna, VD Mote Journal of Materials Science: Materials in Electronics 35 (22), 1511 , 2024 2024 Citations: 3
Designing reduced graphene oxide decorated Ni doped δ-MnO2 nanocomposites for supercapacitor applications ND Raskar, DV Dake, VA Mane, RB Sonpir, M Vasundhara, K Asokan, ... Materials Science in Semiconductor Processing 178, 108451 , 2024 2024 Citations: 52
Highly sensitive and selective room temperature acetone sensing properties of Co doped ZnO nanostructure films M Awale, SD Lokhande, SB Kadam, VD Mote, AB Kadam Journal of Materials Science: Materials in Electronics 35 (18), 1209 , 2024 2024 Citations: 7
Nanoengineered reduced graphene oxide-Fe doped α-MnO2: a multifunctional smart material for energy storage and environmental remediation ND Raskar, DV Dake, VA Mane, RB Sonpir, HA Khawal, VD Mote, ... Journal of Energy Storage 86, 111206 , 2024 2024 Citations: 49
MOST CITED SCHOLAR PUBLICATIONS
Williamson-Hall analysis in estimation of lattice strain in nanometer-sized ZnO particles VD Mote, YP Purushotham, BN Dole Journal of theoretical and applied physics 6 (1), 6 , 2012 2012 Citations: 2664
Effect of Mn doping concentration on structural, morphological and optical studies of ZnO nano-particles VD Mote, JS Dargad, BN Dole Nanoscience and Nanoengineering 1 (2), 116-122 , 2013 2013 Citations: 153
Role of cobalt doping on the electrical conductivity of ZnO nanoparticles U Godavarti, VD Mote, M Dasari Journal of Asian Ceramic Societies 5 (4), 391-396 , 2017 2017 Citations: 139
Structural, morphological, physical and dielectric properties of Mn doped ZnO nanocrystals synthesized by sol–gel method VD Mote, Y Purushotham, BN Dole Materials & Design 96, 99-105 , 2016 2016 Citations: 129
Structural studies of Mn doped ZnO nanoparticles BN Dole, VD Mote, VR Huse, Y Purushotham, MK Lande, KM Jadhav, ... Current Applied Physics 11 (3), 762-766 , 2011 2011 Citations: 121
Structural, morphological and optical properties of Mn doped ZnS nanocrystals VD Mote, Y Purushotham, BN Dole Cerâmica 59 (351), 395-400 , 2013 2013 Citations: 103
Ammonia gas sensing properties of Al doped ZnO thin films LH Kathwate, G Umadevi, PM Kulal, P Nagaraju, DP Dubal, ... Sensors and Actuators A: Physical 313, 112193 , 2020 2020 Citations: 85
Synthesis and characterization of Cr doped ZnO nanocrystals VD Mote, VR Huse, BN Dole World Journal of Condensed Matter Physics 2 (04), 208-211 , 2012 2012 Citations: 72
Structural, morphological, magnetic and electrical properties of Ni-doped ZnO nanoparticles synthesized by co-precipitation method MP Dasari, U Godavarti, V Mote Processing and Application of Ceramics 12 (2), 100-110 , 2018 2018 Citations: 67
Precipitated cobalt doped ZnO nanoparticles with enhanced low temperature xylene sensing properties U Godavarti, VD Mote, MVR Reddy, P Nagaraju, YV Kumar, KT Dasari, ... Physica B: Condensed Matter 553, 151-160 , 2019 2019 Citations: 53
Designing reduced graphene oxide decorated Ni doped δ-MnO2 nanocomposites for supercapacitor applications ND Raskar, DV Dake, VA Mane, RB Sonpir, M Vasundhara, K Asokan, ... Materials Science in Semiconductor Processing 178, 108451 , 2024 2024 Citations: 52
Fabrication of Al-doped ZnO nanoparticles and their application as a semiconductor-based gas sensor for the detection of ammonia HA Varudkar, G Umadevi, P Nagaraju, JS Dargad, VD Mote Journal of Materials Science: Materials in Electronics 31 (15), 12579-12585 , 2020 2020 Citations: 51
Structural and morphological studies on Mn substituted ZnO nanometer‐sized crystals VD Mote, Y Purushotham, BN Dole Crystal Research and Technology 46 (7), 705-710 , 2011 2011 Citations: 50
Nanoengineered reduced graphene oxide-Fe doped α-MnO2: a multifunctional smart material for energy storage and environmental remediation ND Raskar, DV Dake, VA Mane, RB Sonpir, HA Khawal, VD Mote, ... Journal of Energy Storage 86, 111206 , 2024 2024 Citations: 49
Effect of doping on structural, physical, morphological and optical properties of Zn1− xMnxO nano-particles VD Mote, JS Dargad, Y Purushotham, BN Dole Ceramics International 41 (10), 15153-15161 , 2015 2015 Citations: 49
Structural, optical and magnetic properties of Co doped CuO nano-particles by sol-gel auto combustion technique SP Kamble, VD Mote Solid State Sciences 95, 105936 , 2019 2019 Citations: 46
Effect of Ni doping on structural, optical and gas sensing properties of ZnO films for the development of acetone sensor devices SD Lokhande, MB Awale, G Umadevi, VD Mote Materials Chemistry and Physics 301, 127667 , 2023 2023 Citations: 43
Structural, optical and magnetic properties of Mn-doped CuO nanoparticles by coprecipitation method VD Mote, SD Lokhande, LH Kathwate, MB Awale, Y Sudake Materials Science and Engineering: B 289, 116254 , 2023 2023 Citations: 41
Precipitated nickel doped ZnO nanoparticles with enhanced low temperature ethanol sensing properties U Godavarti, VD Mote, M Dasari Modern Electronic Materials 3 (4), 179-185 , 2017 2017 Citations: 37
X-ray analysis of α-Al2O3 particles by Williamson–Hall methods S Kumar, VD Mote, R Prakash, V Kumar Materials Focus 5 (6), 545-549 , 2016 2016 Citations: 36