Debabrata Bhadra

Scopus Publications

Graphene Based PVA/PVP Composite Films Showing Enhanced Dielectric Properties & AC Conductivity Behaviour
Nirmal Saha, Debabrata Bhadra
Aip Conference Proceedings, 2025
Observation of blue shift phenomena in semiconducting ZnS nanomaterials upon Ni dopant showing enhanced dielectric behavior
Anupam Pramanick, Srijani Ghosh, Ashik Ikbal, Abhik Halder, Tapas Pal Majumder, et al.
Indian Journal of Physics, 2024
Preparation and characterization of carbon fibre powder (CFP)-polyvinyl alcohol (PVA) composite films showing percolation threshold behaviour
Biswadeep Chaudhuri, Shrabani Ghosh, Bholanath Mondal, Debabrata Bhadra
Materials Science and Engineering B, 2022
Low percolation threshold and enhanced electrical and dielectric properties of graphite powder/poly (vinyl alcohol) composites
Debabrata Bhadra
Polymer Composites, 2018
Polyvinyl alcohol (PVA) composites with a conductive filler, graphite powder (GP) were prepared by solution casting process. GP remains well dispersed in the PVA composites as evidenced by the lack of the characteristic graphite reflection in the composites. SEM imaging show smooth fractured surfaces with graphite stacks and obvious debonding from the matrix in the GP/PVA composites. The dielectric dispersion and AC conductivity of the composite system exhibited a strong frequency dependence particularly in the vicinity of percolation threshold (fc ∼ 6 wt% = 2.65 vol%). A 150 times increase of dielectric permittivity and seven orders of magnitude higher conductivity were obtained by adding 2.65 vol% graphite powder in PVA indicating the efficient loading between the graphite and the matrix at percolation threshold which is well above the percolation threshold (fc = 0.41 vol%) for PVA/GOnP composites. Moreover, the dielectric properties were measured at about 30°C and 1 kHz. The values of permittivity and dielectric loss were found to increase with increasing graphite content. The percolative composites exhibit very low dielectric loss and leakage current density. Such GP/PVA flexible composites in tailored form might be important for many printing circuit board and capacitor applications in the age of device miniaturization. POLYM. COMPOS., 00:000–000, 2017. © 2017 Society of Plastics Engineers
Myoblast differentiation of human mesenchymal stem cells on graphene oxide and electrospun graphene oxide-polymer composite fibrous meshes: Importance of graphene oxide conductivity and dielectric constant on their biocompatibility
Biswadeep Chaudhuri, Debabrata Bhadra, Lorenzo Moroni, Krishna Pramanik
Biofabrication, 2015
Recently graphene and graphene based composites are emerging as better materials to fabricate scaffolds. Addition of graphene oxide (GO) nanoplatelets (GOnPs) in bioactive polymers was found to enhance its conductivity (σ) and, dielectric permittivity (ϵ) along with biocompatibility. In this paper, human cord blood derived mesenchymal stem cells (CB-hMSCs) were differentiated to skeletal muscle cells (hSkMCs) on spin coated thin GO sheets composed of GOnPs and on electrospun fibrous meshes of GO-PCL (poly-caprolactone) composite. Both substrates exhibited excellent myoblast differentiations and promoted self-alignedmyotubesformation similar to natural orientation. σ, ϵ, microstructural and vibration spectroscopic studies were carried out for the characterizations of GO sheet and the composite scaffolds. Significantly enhanced values of both σ and ϵ of the GO-PCL composite were considered to provide favourable cues for the formation of superior multinucleated myotubes on the electrospun meshes compared to those on thin GO sheets. The present results demonstrated that both substrates might be used as potential candidates for CB-hMSCs differentiation and proliferation for human skeletal muscle tissue regeneration.
Enhanced dielectric and ferroelectric properties in NaTNO/PVDF nanocomposites: A new flexible material for capacitor application
D. Bhadra, S. C. Sarkar, B. K. Chaudhuri
Rsc Advances, 2015
Polymer nanocomposites (PNC) showing improved physical properties are emerging as novel functional materials because of their adaptable physical properties for technological applications.
Retraction: "Observation of large magnetodielectric and direct magnetoelectric behavior in LCMO/PVDF 0-3 nanocomposites" [Appl. Phys. Lett. 102, 072902 (2013)]
Debabrata Bhadra, Md. G. Masud, S. K. De, B. K. Chaudhuri
Applied Physics Letters, 2014
First Page
Biocompatibility of electrospun graphene oxide-poly(ε-caprolactone) fibrous scaffolds with human cord blood mesenchymal stem cells derived skeletal myoblast
Biswadeep Chaudhuri, Debabrata Bhadra, Bholanath Mondal, Krishna Pramanik
Materials Letters, 2014
Biocompatibility of electrospun graphene oxide (GO)–poly (e-caprolactone)-(PCL) composite fibrous scaffolds has been investigated using skeletal muscle cells obtained from human umbilical cord blood (UCB) derived mesenchymal stem cells (CB-hMSCs). Such CB-hMSCs derived human skeletal muscle cells (CB-hSkMCs) adhered, proliferated and formed myotubes when cultured on GO–PCL fibrous scaffold suitable for skeletal muscle tissue engineering applications.
Crystalline graphite oxide/PVDF nanocomposite gate dielectric: Low-voltage and high field effect mobility thin-film transistor
J. Sannigrahi, D. Bhadra, B. K. Chaudhuri
Physica Status Solidi A Applications and Materials Science, 2013
We fabricated an anthracene thin-film transistor (TFT) with an ultrathin layer (∼450 nm) of poly-vinylidene fluoride (PVDF)/graphite oxide nanoplatelets (GOnP) nanocomposite as a gate insulator. We obtained a TFT device with excellent electrical characteristics at low operating voltages (<1 V). The dielectric is a high-e gate insulator with a static dielectric constant of er = 15.6. This device was found to have a field effect mobility of 1.1 cm2 V−1 s, a threshold voltage of 0.34 V, an exceptionally low subthreshold slope (SS) of 380 mV decade−1 and an on/off ratio of 105. The combination of favorable properties opens up the possibility to utilize such TFTs effectively at voltages as low as below 1 V. Such high-e PVDF/GOnP gate dielectric appears to be highly promising candidates for organic nonvolatile memories and sensor field effect transistors (FETs).
Observation of large magnetodielectric and direct magnetoelectric behavior in LCMO/PVDF 0-3 nanocomposites
Debabrata Bhadra, Md. G. Masud, S. K. De, B. K. Chaudhuri
Applied Physics Letters, 2013
A two-phase multifunctional La2CoMnO6 (LCMO)/Poly-vinylidene fluoride 0–3 flexible nanocomposite (NCOMP) thick films have been prepared. Interestingly, this NCOMP shows linear increase of magnetoelectric voltage coefficient (MVC) with applied dc magnetic-bias fields up to 5 kOe, exhibiting no sign of hysteresis. For the typical LCMO concentration, fLCMO = 0.15, the maximum MVC measured is 1.45 mV cm−1 Oe−1 (using 50 kHz resonant signal). This low dielectric loss (∼0.12) NCOMP also showed intriguing high magnetodielectric effect (∼10%) around the ferromagnetic transition temperature (Tc ∼ 230 K) with minimal leakage current. Such results make the present nanocomposite significantly important for the development of magnetic field tuned electronic devices.
Hydroxyapatite and hydroxyapatite-chitosan composite from crab shell
Biswadeep Chudhuri, D. Bhadra, S. Dash, G. Sardar, K. Pramanik, B. K. Chaudhuri
Journal of Biomaterials and Tissue Engineering, 2013
Large magnetoelectric effect and low-loss high relative permittivity in 0-3 CuO/PVDF composite films exhibiting unusual ferromagnetism at room temperature
D Bhadra, Md G Masud, S K De, B K Chaudhuri
Journal of Physics D Applied Physics, 2012
Enhanced electrical and dielectric properties of graphite based PVA nanocomposite at low percolation threshold
D. Bhadra, J. Sannigrahi, S. K. De, B. K. Chaudhuri
Aip Conference Proceedings, 2012
Anomalous transport properties of graphene oxide magnetic ferrite nanocomposites
Jhuma Sannigrahi, D. Bhadra, Md. G. Masud, B. K. Chaudhuri
Aip Conference Proceedings, 2012
High dielectric permittivity and percolative behavior of polyvinyl alcohol/potassium dihydrogen phosphate composites
Md Jamal Uddin, J. Sannigrahi, Md G. Masud, D. Bhadra, B. K. Chaudhuri
Journal of Applied Polymer Science, 2012
Synthesis of PVDF/BiFeO 3 nanocomposite and observation of enhanced electrical conductivity and low-loss dielectric permittivity at percolation threshold
Debabrata Bhadra, Md. G. Masud, S. Sarkar, J. Sannigrahi, S. K. De, B. K. Chaudhuri
Journal of Polymer Science Part B Polymer Physics, 2012
Enhancement of the transport and dielectric properties of graphite oxide nanoplatelets-polyvinyl alcohol composite showing low percolation threshold
Debabrata Bhadra, J. Sannigrahi, B. K. Chaudhuri, H. Sakata
Polymer Composites, 2012
Low loss high dielectric permittivity of polyvinylidene fluoride and K xTiyNi1-x-yO (x=0.05, y=0.02) composites
Debabrata Bhadra, A. Biswas, S. Sarkar, B. K. Chaudhuri, K. F. Tseng, H. D. Yang
Journal of Applied Physics, 2010

RECENT SCHOLAR PUBLICATIONS

Novel electrospun fibrous films of PVA–PVP–AgNP, PVP-PVA-GO and PVA–PVP–AgNP–GO nanocomposites for biomedical and technological applications
DB Biswadeep Chaudhuri
Materials Letters 405, 139771 , 2025
2025
Citations: 2
Investigation of blue shift phenomena and dielectric behaviour with the concentration of Co doped in ZnS nanoparticles
BD Pramanick Anupam, Majumder Tapas Pal
Journal of Condensed Matter 2 (02), 46-52 , 2025
2025
Graphene based PVA/PVP composite films showing enhanced dielectric properties & AC conductivity behaviour
N Saha, D Bhadra
AIP Conference Proceedings 3198 (1), 020102 , 2025
2025
Preparation of PVDF/GO Nanocomposite Films Exhibiting Enhanced Dielectric Properties
PCSD Debabrata Bhadra
Interdisciplinary Insights: Advances in Basic and Bio Sciences in Digital … , 2025
2025
Thickness Non-Uniformity Metrology using Geometric Phase Shifting Algorithm
S Sadhukhan, S Sarkar, D Bhadra
Available at SSRN 4728935 , 2024
2024
Birefringence Measurement using Geometric Phase Shift Algorithm
S Sarkar, S Sadhukhan, D Bhadra
Available at SSRN 4728926 , 2024
2024
Synthesis and Study of Optical Molecular Spectroscopic Characteristics of ZnS and ZnS-ZnO nanocomposites
A Pramanick, S Ghosh, TP Majumder, D Bhadra
American Journal of Applied Bio-Technology Research (AJABTR) 4 (1), 5 , 2024
2024
Biomimetic hydroxyapatite (HAP)/Carboxymethyl Cellulose (CMC) composite materials for bone tissue engineering applications
N Saha, D Bhadra
American Journal of Applied Bio-Technology Research (AJABTR) 1 (4), 4 , 2024
2024
Observation of blue shift phenomena in semiconducting ZnS nanomaterials upon Ni dopant showing enhanced dielectric behavior: A Pramanick et al.
A Pramanick, S Ghosh, A Ikbal, A Halder, TP Majumder, D Bhadra
Indian Journal of Physics 98 (1), 109-116 , 2024
2024
Citations: 6
Synthesis and Study of Optical Molecular Spectroscopic Characteristics of ZnS and ZnS-ZnO nanocomposites
A Pramanick, S Ghosh, N Saha, T Pal Majumder, D Bhadra
American Journal of Applied Bio-Technology Research (AJABTR) 4 (1), 50-60 , 2023
2023
Study of Improved Dielectric & Conducting Properties of PVDF based Flexible Inorganic Oxide Polymer Nanocomposites
D Bhadra
International Journal of All Research Education and Scientific Methods 10 (4 … , 2022
2022
SYNERGISTIC EFFECT EXHIBITED IN FLEXIBLE GRAPHENE OXIDE (GO) POWDER/PMMA POLYMER NANO-COMPOSITES AT ULTRALOW PERCOLATION THRESHOLD FOR SUPERCAPACITOR APPLICATIONS
D Bhadra
IJRAR - INTERNATIONAL JOURNAL OF RESEARCH AND ANALYTICAL REVIEWS 9 (1), 419-435 , 2022
2022
Preparation and characterization of carbon fibre powder (CFP)-polyvinyl alcohol (PVA) composite films showing percolation threshold behaviour
B Chaudhuri, S Ghosh, B Mondal, D Bhadra
Materials Science and Engineering: B 275, 115500 , 2022
2022
Citations: 21
USING PERCOLATIVE CRYSTALLINE 0.3 CUO/PVDF NANOCOMPOSITE GATE DIELECTRIC FOR FABRICATING HIGH-EFFECT MOBILITY THIN FILM TRANSISTOR OPERATING AT LOW VOLTAGE
D Bhadra
International Journal of Advanced Research (IJAR) 9 (11), 1095-1101 , 2021
2021
Study of Complex dielectric behavious of PVDF-Ni composite
D Saha, Nirmal & Bhadra
Emerging Trends and New Horizons in Applied Sciences 1, 225-237 , 2021
2021
Enhanced electrical performance on the conductivity of the filler in the PVDF/KTNO polymer composites showing ferroelectric behaviour
D Bhadra
Basic & Applied Sciences into Next Frontiers 1, 133-141 , 2021
2021
Biomimetic hydroxyapatite (HAP)/Carboxymethyl Cellulose (CMC) composite materials for bone tissue engineering applications
N Saha, D Bhadra
American Journal of Applied Bio-Technology Research 1 (4), 16-29 , 2020
2020
Citations: 1
Low percolation threshold and enhanced electrical and dielectric properties of graphite powder/poly (vinyl alcohol) composites
D Bhadra
Polymer Composites 39 (12), 4400-4407 , 2018
2018
Citations: 16
Percolation threshold of graphite and graphite oxide based bio-polymer nanocomposites showing enhanced biocompatibility
D Bhadra
Proceedings of the national conference on condensed matter physics, 69-69 , 2018
2018
Low Voltage and High Filed effect Mobility thin film transistor using Crystalline Polymer Nanocomposite as Gate Dielectric
D Bhadra
Conference Proceedings of the 3rd International Conference on Nanoscience … , 2017
2017

MOST CITED SCHOLAR PUBLICATIONS

Myoblast differentiation of human mesenchymal stem cells on graphene oxide and electrospun graphene oxide–polymer composite fibrous meshes: importance of graphene oxide …
B Chaudhuri, D Bhadra, L Moroni, K Pramanik
Biofabrication 7 (1), 015009 , 2015
2015
Citations: 116
Synthesis of PVDF/BiFeO3 nanocomposite and observation of enhanced electrical conductivity and low‐loss dielectric permittivity at percolation threshold
D Bhadra, MG Masud, S Sarkar, J Sannigrahi, SK De, BK Chaudhuri
Journal of Polymer Science Part B: Polymer Physics 50 (8), 572-579 , 2012
2012
Citations: 66
Low loss high dielectric permittivity of polyvinylidene fluoride and KxTiyNi1− x− yO (x= 0.05, y= 0.02) composites
D Bhadra, A Biswas, S Sarkar, BK Chaudhuri, KF Tseng, HD Yang
Journal of Applied Physics 107 (12) , 2010
2010
Citations: 46
Large magnetoelectric effect and low-loss high relative permittivity in 0–3 CuO/PVDF composite films exhibiting unusual ferromagnetism at room temperature
D Bhadra, MG Masud, SK De, BK Chaudhuri
Journal of Physics D: Applied Physics 45 (48), 485002 , 2012
2012
Citations: 43
Enhancement of the transport and dielectric properties of graphite oxide nanoplatelets‐polyvinyl alcohol composite showing low percolation threshold
D Bhadra, J Sannigrahi, BK Chaudhuri, H Sakata
Polymer composites 33 (3), 436-442 , 2012
2012
Citations: 39
Biocompatibility of electrospun graphene oxide–poly (ε-caprolactone) fibrous scaffolds with human cord blood mesenchymal stem cells derived skeletal myoblast
B Chaudhuri, D Bhadra, B Mondal, K Pramanik
Materials Letters 126, 109-112 , 2014
2014
Citations: 38
Preparation and characterization of carbon fibre powder (CFP)-polyvinyl alcohol (PVA) composite films showing percolation threshold behaviour
B Chaudhuri, S Ghosh, B Mondal, D Bhadra
Materials Science and Engineering: B 275, 115500 , 2022
2022
Citations: 21
Crystalline graphite oxide/PVDF nanocomposite gate dielectric: Low‐voltage and high field effect mobility thin‐film transistor
J Sannigrahi, D Bhadra, BK Chaudhuri
physica status solidi (a) 210 (3), 546-552 , 2013
2013
Citations: 20
Hydroxyapatite and hydroxyapatite-chitosan composite from crab shell
B Chudhuri, D Bhadra, S Dash, G Sardar, K Pramanik, BK Chaudhuri
Journal of Biomaterials and Tissue Engineering 3 (6), 653-657 , 2013
2013
Citations: 18
Low percolation threshold and enhanced electrical and dielectric properties of graphite powder/poly (vinyl alcohol) composites
D Bhadra
Polymer Composites 39 (12), 4400-4407 , 2018
2018
Citations: 16
High dielectric permittivity and percolative behavior of polyvinyl alcohol/potassium dihydrogen phosphate composites
MJ Uddin, J Sannigrahi, MG Masud, D Bhadra, BK Chaudhuri
Journal of applied polymer science 125 (3), 2363-2370 , 2012
2012
Citations: 14
Enhanced dielectric and ferroelectric properties in NaTNO/PVDF nanocomposites: a new flexible material for capacitor application
D Bhadra, SC Sarkar, BK Chaudhuri
RSC advances 5 (46), 36924-36932 , 2015
2015
Citations: 13
Observation of blue shift phenomena in semiconducting ZnS nanomaterials upon Ni dopant showing enhanced dielectric behavior: A Pramanick et al.
A Pramanick, S Ghosh, A Ikbal, A Halder, TP Majumder, D Bhadra
Indian Journal of Physics 98 (1), 109-116 , 2024
2024
Citations: 6
Biocompatibility of poly (lactic-co-glycolic acid)-Graphene oxide nanoplatelets composite using cryopreserved human stem cells
B Chaudhuri, B Mondal, D Bhadra
Chem Sci Rev Lett 6, 1831-6 , 2017
2017
Citations: 6
Enhanced electrical and dielectric properties of graphite based PVA nanocomposite at low percolation threshold
D Bhadra, J Sannigrahi, SK De, BK Chaudhuri
AIP Conference Proceedings 1447 (1), 353-354 , 2012
2012
Citations: 3
Novel electrospun fibrous films of PVA–PVP–AgNP, PVP-PVA-GO and PVA–PVP–AgNP–GO nanocomposites for biomedical and technological applications
DB Biswadeep Chaudhuri
Materials Letters 405, 139771 , 2025
2025
Citations: 2
Anomalous transport properties of graphene oxide magnetic ferrite nanocomposites
J Sannigrahi, D Bhadra, MG Masud, BK Chaudhuri
AIP Conference Proceedings 1447 (1), 953-954 , 2012
2012
Citations: 2
Biomimetic hydroxyapatite (HAP)/Carboxymethyl Cellulose (CMC) composite materials for bone tissue engineering applications
N Saha, D Bhadra
American Journal of Applied Bio-Technology Research 1 (4), 16-29 , 2020
2020
Citations: 1
Investigation of blue shift phenomena and dielectric behaviour with the concentration of Co doped in ZnS nanoparticles
BD Pramanick Anupam, Majumder Tapas Pal
Journal of Condensed Matter 2 (02), 46-52 , 2025
2025
Graphene based PVA/PVP composite films showing enhanced dielectric properties & AC conductivity behaviour
N Saha, D Bhadra
AIP Conference Proceedings 3198 (1), 020102 , 2025
2025

Debabrata Bhadra

RESEARCH INTERESTS

Scopus Publications

RECENT SCHOLAR PUBLICATIONS

MOST CITED SCHOLAR PUBLICATIONS