Pressure–Volume Response in Nanomaterials: Contrasting Graphenic Sheets, Oxide Ceramics, and Transition Metal Architectures Tajamul Islam, A. K. Srivastava, Mudasir A. Mir, Santosh Chackrabarti, R.A. Zargar Journal of Theoretical and Applied Physics, 2026 This investigation presents a comprehensive theoretical examination of pressure-induced volumetric compression characteristics in five structurally diverse nanomaterials: graphite, aluminium oxide (Al2O3), single-walled carbon nanotubes (SWCNTs), nano-epsilon-phase iron (nano-ε-Fe), and nano-nickel (nano-Ni), representing carbon allotropes, ceramic oxides, and transition metal systems. Four established equations of state (Tait, Murnaghan, Kholiya and Chandra, and Shanker) were employed using experimentally derived bulk modulus values and their pressure derivatives from literature to model relative volumetric changes under applied pressure up to 16 GPa. The analysis reveals material-specific compressibility behaviours dictated by bonding characteristics, atomic configuration, and dimensionality. Al2O3 demonstrates the highest incompressibility among studied materials due to its strong ionic-covalent bonding, while SWCNTs exhibit pronounced nonlinear compression attributed to structural instabilities under confinement. Nano-Ni and nano-ε-Fe show intermediate compressibility with enhanced sensitivity due to nanoscale effects including surface energy influences and modified coordination environments. The study validates the applicability of classical equations of state for predicting nanoscale mechanical responses and provides critical insights for material selection in nanodevice design for biomedical, energy, and high-pressure applications.
Effect of sintering temperature on structural and optoelectronic properties of screen-printed V2O5 thick films Rayees Ahmad Zargar, Santosh Chackrabarti, Tuiba Mearaj, Shabir Ahmad Bhat, Vipin Kumar Results in Chemistry, 2026 Vanadium pentoxide (V 2 O 5 ) films were synthesized on glass substrates employing the screen-printing technique at sintering temperatures of 500 °C and 600 °C. The structural properties of the V 2 O 5 films were scrutinized utilizing scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The optical characteristics were assessed through UV– Vis spectroscopy and photoluminescence (PL) spectroscopy. XRD analysis revealed an increase in crystal size concomitant with the elevation of temperature. SEM investigations disclosed increased grain sizes and diminished particle agglomeration, with the emergence of voids in various regions as the sintering temperature escalated. FTIR examination demonstrated minor shifts and more pronounced peaks at elevated temperatures. Optical absorption assessments exhibited direct band gap semiconductor behavior, with band gap energies approximating 2.10 eV for films sintered at 500 °C and 1.95 eV for those subjected to 600 °C. PL spectroscopy indicated a red shift in band emission corresponding to the rise in sintering temperature. These observations imply that elevated sintering temperatures significantly enhance the crystallinity of V 2 O 5 films while concurrently reducing structural defects and improving crystalline quality. • V 2 O 5 films were synthesized on glass substrates via the screen-printing technique. • XRD analysis revealed an augmentation in crystal size with the elevation of temperature. • SEM investigations disclosed increased grain sizes. • PL spectroscopy indicated a red shift in band emission.
An in-depth Analysis of the Physical Characteristics of TiO2–CuO Films Fabricated via Spray Pyrolysis Yassar Arfat, S. V. A. V. Prasad, Santosh Chackrabarti, R. A. Zargar, Vipin Kumar Semiconductors, 2024 Abstract A composite film of TiO2–CuO synthesized by spray pyrolysis is deposited onto a silicon (Si) substrate and subjected to comprehensive characterization using diverse analytical techniques. X-ray diffraction (XRD) revealed the presence of an anatase phase of TiO2 and a monoclinic phase of CuO, with the highest diffraction occurring on the (101) plane. Raman spectra also depict anatase phase of TiO2. The scanning electron microscope (SEM) image reveals a porous and rough morphology whereas EDX depicts the inclusion of CuO. While UV–Visible diffused reflectance indicates a direct band gap of 3.21 eV. Similarly, photoluminescence (PL) studies reveal a significant reduction in intensity within the UV and blue regions as compared to the yellow region. Likewise, the ideality factor (n) and barrier height (Φb), which are diode parameters are computed based on the I–V characteristics. These findings suggest that the TiO2–CuO film holds potential for applications in the manufacturing of optoelectronic devices.
Metal Oxide Nanocomposite Thin Films: Optical and Electrical Characterization Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Application, 2023
Rare-Earth High-Entropy Oxides: Bridging Energy Catalysis and Optoelectronic Innovation S Chackrabarti Topics in Current Chemistry 384 (2), 17 , 2026 2026
Finite Element Analysis of Optimized Fe2O3 Nanomaterials Under Applied Mechanical Pressure A Saxena, T Islam, AK Srivastava, RA Zargar, S Chackrabarti, JG Dar, ... Journal of Nano-& Electronic Physics 18 (2), 02037-1 , 2026 2026
vanadium pentoxide thin films-advanced doping strategies and interface engineering for next-generation applications S Chackrabarti, RA Zargar Journal of Materials Science, 1-45 , 2026 2026 Citations: 3
Synergistic optoelectronic enhancement in WSe₂/Copper-Doped ZnO nanocomposites: a hydrothermal approach S Chackrabarti, M Khanuja Applied Physics A 131 (12), 1006 , 2025 2025 Citations: 1
Effect of sintering temperature on structural and optoelectronic properties of screen-printed V2O5 thick films RA Zargar, S Chackrabarti, T Mearaj, SA Bhat, V Kumar Results in Chemistry, 102903 , 2025 2025 Citations: 1
An in-depth Analysis of the Physical Characteristics of TiO2–CuO Films Fabricated via Spray Pyrolysis Y Arfat, S Prasad, S Chackrabarti, RA Zargar, V Kumar Semiconductors 58 (10), 817-824 , 2024 2024
Thermally induced Modulation of optoelectronic characteristics In (ZrO2) 0.8 doped (CuO) 0.2 screen printed thick films: An Innovative approach to enhanced materials S Chackrabarti, T Mearaj, A Siddiqui, RA Zargar, AA Bhat, NA Siddiqui, ... Optical Materials 156, 115934 , 2024 2024 Citations: 2
Unraveling optical and electrical dynamics in synthesized TiO 2 nanopowder through sol–gel chemistry S Chackrabarti, RA Zargar, T Mearaj, Y Arfat, AK Hafiz, MI Khan MRS Advances 9 (12), 991-996 , 2024 2024 Citations: 2
Evaluating the photocatalytic properties of zinc sulfide and zinc indium sulfide microspheres: A comparative approach M Imran, S Chackrabarti, M Khanuja, AK Hafiz Journal of Materials Research 39 (13), 1963-1975 , 2024 2024 Citations: 3
Metal oxide nanocomposite thin films: optical and electrical characterization S Chackrabarti, RA Zargar, T Mearaj, AK Hafiz Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Applications … , 2023 2023 Citations: 6
Breaking Boundaries in LED Technology: Exploring the Revolutionary Diode Characteristics of Screen Printed (TiO 2 ) 1−x (CuO) x Thick Films RA Zargar, S Chackrabarti, T Mearaj, IM Ashraf, AK Hafiz ECS Journal of Solid State Science and Technology 12 (7), 076008 , 2023 2023 Citations: 1
Synthesis of Silver Nanoparticles with Different Morphologies for SERS T Mearaj, S Shukla, AK Hafiz, M Khanuja, RA Zargar, S Chackrabarti International Conference on Nanotechnology: Opportunities and Challenges … , 2022 2022
Sol-gel syringe spray coating: A novel approach for Rietveld, optical and electrical analysis of CdO Film for optoelectronic applications RA Zargar, S Chackrabarti, MH Malik, AK Hafiz Physics Open 7, 100069 , 2021 2021 Citations: 16
A Comprehensive Review of Properties of Screen-Printed Pure and Doped ZnO and CdO Thick Films S Chackrabarti, AK Hafiz, RA Zargar Curr. Altern. Energy 2, 42-71 , 2018 2018 Citations: 1
Investigation on the structural and optical properties of Zn1-xCuxO (x= 0, 0.05, 0.1) sintered films for optoelectronic device applications S Chackrabarti, SA Bhat, BMUD Bhat, I Khan, RA Zargar Eur. Chem. Bull. 6 (10), 426 , 2017 2017 Citations: 2
Realization of structural and optical properties of CdZnO composite coated films for photovoltaic cell applications S Chackrabarti, RA Zargar, S Joseph, M Arora, A Aziz, AK Hafiz Optik 127 (20), 9966-9973 , 2016 2016 Citations: 30
Realization of band gap shrinkage to the spectral characteristics of high-luminous-efficiency 658 nm AlGaInP/GaInP multiple quantum well lasers at room temperatures S Chackrabarti, RA Zargar, J Bansal, TA Zaker, AK Hafiz Optical Materials 58, 426-431 , 2016 2016
Synthesis, characterization and interpretation of screen-printed nanocrystalline CdO thick film for optoelectronic applications RA Zargar, S Chackrabarti, M Arora, AK Hafiz International Nano Letters 6 (2), 99-104 , 2016 2016 Citations: 34
Alcohol vapor sensing by cadmium-doped zinc oxide thick films based chemical sensor RA Zargar, M Arora, S Chackrabarti, S Ahmad, J Kumar, AK Hafiz Modern Physics Letters B 30 (12), 1650244 , 2016 2016 Citations: 7
Structural and optical characteristics of transparent conducting yttrium doped ZnO films using screen printing technology S Chackrabarti, RA Zargar, A Aziz, AK Hafiz Journal of Materials Science: Materials in Electronics 27 (5), 5271-5276 , 2016 2016 Citations: 11
MOST CITED SCHOLAR PUBLICATIONS
Synthesis and characterization of screen printed ZnO films for solar cell applications RA Zargar, S Chackrabarti, S Joseph, MS Khan, R Husain, AK Hafiz Optik 126 (23), 4171-4174 , 2015 2015 Citations: 39
Synthesis, characterization and interpretation of screen-printed nanocrystalline CdO thick film for optoelectronic applications RA Zargar, S Chackrabarti, M Arora, AK Hafiz International Nano Letters 6 (2), 99-104 , 2016 2016 Citations: 34
Realization of structural and optical properties of CdZnO composite coated films for photovoltaic cell applications S Chackrabarti, RA Zargar, S Joseph, M Arora, A Aziz, AK Hafiz Optik 127 (20), 9966-9973 , 2016 2016 Citations: 30
Novel composites of Zn 1−x Cd x O (x = 0, 0.05, 0.1) thick films for optoelectronic device application RA Zargar, S Chackrabarti, M Shahabuddin, J Kumar, M Arora, AK Hafiz Journal of Materials Science: Materials in Electronics 26 (12), 10027-10033 , 2015 2015 Citations: 24
Sol-gel syringe spray coating: A novel approach for Rietveld, optical and electrical analysis of CdO Film for optoelectronic applications RA Zargar, S Chackrabarti, MH Malik, AK Hafiz Physics Open 7, 100069 , 2021 2021 Citations: 16
Investigation on the physical properties of Zn0. 94Cu0. 06O coated film S Chackrabarti, RA Zargar, D Ali, M Arora, A Aziz, AK Hafiz Optik 127 (5), 2911-2913 , 2016 2016 Citations: 12
Structural and optical characteristics of transparent conducting yttrium doped ZnO films using screen printing technology S Chackrabarti, RA Zargar, A Aziz, AK Hafiz Journal of Materials Science: Materials in Electronics 27 (5), 5271-5276 , 2016 2016 Citations: 11
Alcohol vapor sensing by cadmium-doped zinc oxide thick films based chemical sensor RA Zargar, M Arora, S Chackrabarti, S Ahmad, J Kumar, AK Hafiz Modern Physics Letters B 30 (12), 1650244 , 2016 2016 Citations: 7
Metal oxide nanocomposite thin films: optical and electrical characterization S Chackrabarti, RA Zargar, T Mearaj, AK Hafiz Metal Oxide Nanocomposite Thin Films for Optoelectronic Device Applications … , 2023 2023 Citations: 6
vanadium pentoxide thin films-advanced doping strategies and interface engineering for next-generation applications S Chackrabarti, RA Zargar Journal of Materials Science, 1-45 , 2026 2026 Citations: 3
Evaluating the photocatalytic properties of zinc sulfide and zinc indium sulfide microspheres: A comparative approach M Imran, S Chackrabarti, M Khanuja, AK Hafiz Journal of Materials Research 39 (13), 1963-1975 , 2024 2024 Citations: 3
Experimental study on the mechanism governing spectral shifts in low power 670 nm AlGaInP multiple quantum well (MQW) laser diodes over temperature range 5–45° C S Chackrabarti, D Sharma, S Joseph, TA Zaker, AK Hafiz, R Kafle Canadian Journal of Physics 94 (7), 640-644 , 2016 2016 Citations: 3
Thermally induced Modulation of optoelectronic characteristics In (ZrO2) 0.8 doped (CuO) 0.2 screen printed thick films: An Innovative approach to enhanced materials S Chackrabarti, T Mearaj, A Siddiqui, RA Zargar, AA Bhat, NA Siddiqui, ... Optical Materials 156, 115934 , 2024 2024 Citations: 2
Unraveling optical and electrical dynamics in synthesized TiO 2 nanopowder through sol–gel chemistry S Chackrabarti, RA Zargar, T Mearaj, Y Arfat, AK Hafiz, MI Khan MRS Advances 9 (12), 991-996 , 2024 2024 Citations: 2
Investigation on the structural and optical properties of Zn1-xCuxO (x= 0, 0.05, 0.1) sintered films for optoelectronic device applications S Chackrabarti, SA Bhat, BMUD Bhat, I Khan, RA Zargar Eur. Chem. Bull. 6 (10), 426 , 2017 2017 Citations: 2
Synergistic optoelectronic enhancement in WSe₂/Copper-Doped ZnO nanocomposites: a hydrothermal approach S Chackrabarti, M Khanuja Applied Physics A 131 (12), 1006 , 2025 2025 Citations: 1
Effect of sintering temperature on structural and optoelectronic properties of screen-printed V2O5 thick films RA Zargar, S Chackrabarti, T Mearaj, SA Bhat, V Kumar Results in Chemistry, 102903 , 2025 2025 Citations: 1
Breaking Boundaries in LED Technology: Exploring the Revolutionary Diode Characteristics of Screen Printed (TiO 2 ) 1−x (CuO) x Thick Films RA Zargar, S Chackrabarti, T Mearaj, IM Ashraf, AK Hafiz ECS Journal of Solid State Science and Technology 12 (7), 076008 , 2023 2023 Citations: 1
A Comprehensive Review of Properties of Screen-Printed Pure and Doped ZnO and CdO Thick Films S Chackrabarti, AK Hafiz, RA Zargar Curr. Altern. Energy 2, 42-71 , 2018 2018 Citations: 1
Spectral changes due to carrier induced band gap shrinkage for 675 nm AlGaInP multiple quantum well (MQW) laser diodes at room temperatures S Chackrabarti, D Sharma, R Kafle Optik 127 (10), 4287-4291 , 2016 2016 Citations: 1
