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Journal Publications:

  1. Designing Rare Earth Free High Entropy Oxide with Tungsten Bronze Structure for Thermoelectric Application
    Subhra Sourav Jana and Tanmoy Maiti, Materials Horizons, (2023) [I.F. 15.717].
    DOI: https://doi.org/10.1039/D2MH01488B  (pdf)

    [Highlighted by Nature Reviews Chemistry volume 7, page 229 (2023)
    https://doi.org/10.1038/s41570-023-00489-8]


    This work demonstrates an exciting approach to design a thermoelectric material utilizing high entropy effect. For the first time, we have designed a novel tungsten bronze structure type high entropy oxide for the thermoelectric applications. We have determined the phase stability of the HETB by using thermodynamic calculation. Led by multi-phonon scattering due to presence of 5 cations in HETB, we have been able to reach ultralow thermal conductivity, which is the lowest ever reported value in high entropy oxide thermoelectrics. Increased Seebeck coefficient and ultralow thermal conductivity synergistically allow HETB to attain maximum ZT performance among high entropy oxide thermoelectrics.

  2. Enhanced thermoelectric performance of rare-earth-free n-type oxide perovskite composite with graphene analogous 2D MXene
    Pragya Dixit, Subhra Sourav Jana and Tanmoy Maiti, Small, (2023) [I.F. 15.153].
    DOI: https://doi.org/10.1002/smll.202206710  (pdf)

    Here we have shown for the first time that MXene can be used to enhance the thermoelectric performance of doped SrTiO3 perovskites. By forming composite with 2D MXene we could get single-crystal like electron mobility in polycrystalline composite by successfully delocalizing the electrons in Nb doped SrTiO3 in which electrons otherwise suffer from Anderson's localization. As a result we could achieve 1851% increase in electrical conductivity and 1000% enhancement of thermoelectric power factor. Further, MXene incorporation led to enhanced Umklapp scattering giving rise to lower lattice thermal conductivity. Hence 700% ZT enhancement is observed. Subsequently we made a prototype of 4-legged thermoelectric power generator (TEG) and obtained 38mW power output, which is much higher than the reported values for oxide TEG. Our result thus opens up a new avenue of designing novel thermoelectric composites using MXene.

  3. Rare earth free Oxide nano-composite of SrTi0.85Nb0.15O3 and CNT for potential n-type Thermoelectrics
    Subhra Sourav Jana and Tanmoy Maiti, Carbon, 202(2), 207 (2023) [I.F. 11.307].
    DOI: https://doi.org/10.1016/j.carbon.2022.11.039  (pdf)

    This is the first report on thermoelectric properties of oxide perovskite composites with CNT. CNT is proven to be effective to overcome the Andersons localization of electrons prevalent in doped SrTiO3. We have reported more than 1000 % increase in electrical conductivity of Nb doped SrTiO3 after CNT addition. This remarkable enhancement of electrical conductivity accompanied by essentially no change in Seebeck coefficient leads to a 380 % increase in the thermoelectric figure-of-merit, ZT. Although CNT has been previously introduced in chalcogenides, binary oxides, and oxy-chalcogenides, such a remarkable surge in electrical transport with the incorporation of a small amount of CNT has never been reported.

  4. Study of charge transport mechanism in Ba doped Sr2CrMoO6 double perovskite mixed ionic electronic conductor
    Vivek Kumar, Sudha Saini and Tanmoy Maiti, Journal of Applied Physics 133, 164104 (2023) [I.F. 2.877].
    DOI: https://doi.org/10.1063/5.0141080  (pdf)

    Here basically we unraveled the charge transport mechanism of double perovskite mixed ionic electronic conductor (MIEC), which can be used for various applications such as in batteries, sensors, catalysis, solid oxide fuel cells (SOFCs), etc.

  5. A facile pot synthesis of (Ti3AlC2) MAX phase and its derived MXene (Ti3C2Tx) Thermoelectrics
    P. Dixit and T. Maiti, Ceramics International, 48(24), 36156 (2022) [I.F. 5.532].
    DOI: https://doi.org/10.1016/j.ceramint.2022.08.172  (pdf)

    We have discovered a new, low-cost synthesis route for MAX and MXene. We have filed an Indian Patent for the same as well. Synthesizing graphene analogous 2D material MXene with high purity is prerequisite for realizing its huge potential in various electronic and electro-optic applications. However, it has always been challenging to prevent the oxidation of metals during fabrication of MAX phase which eventually leaves the ‘defect’ imprint on 2D MXene. Here we have shown a novel, simple and low-cost processing technique for fabricating high purity 2D MXene sheet showing Accordion like open layered structure.

  6. Enhanced Thermoelectric Performance in Oxide Composites of La and Nb Codoped SrTiO3 by Using Graphite as the Electron Mobility Booster
    Subhra Sourav Jana and Tanmoy Maiti, ACS Applied Materials & Interfaces, 14, 14174 (2022) [I.F. 10.383].
    DOI: https://doi.org/10.1021/acsami.1c24625  (pdf)

    This is our 2nd paper demonstrating the composite route by using graphite in Perovskite matrix to achieve 423% increment in thermoelectric figure of merit, ZT. Graphite helps in delocalising electrons in La-Nb co-doped SrTiO3 in which electrons suffer from Anderson’s localization causing order of magnitude increase in electron mobility. Further we have demonstrated mW-level power output using just 4 -legs of this n-type composite, which is much better than micro watts attained in oxide thermoelectrics.

  7. Temperature-dependent excitonic emission characteristics of lead-free inorganic double perovskites and their third-order optical nonlinearities
    A. Singh, P. Dey, A. Kumari, M. K. Sikdar, P. K. Sahoo, R. Das and T. Maiti, Physical Chemistry Chemical Physics (PCCP), 24, 4065 (2022) [I.F. 3.945].
    DOI: https://doi.org/10.1039/D1CP04896A  (pdf)

    Here we report for the first time, 3rd-order optical nonlinearities in lead-free inorganic halide double perovskites. This is collaborative work with NISER Bhubaneswar.

  8. Enhanced thermoelectric power factor led by isovalent substitution in Sr2CrMoO6 double perovskite
    S. Saini, M. Saxena, T. Bhattacharya, A. Saha and T. Maiti, J. Phys. D: Appl. Phys. 55, 415501 (2022) [I.F. 3.409].
    DOI: https://doi.org/10.1088/1361-6463/ac83d2  (pdf)

    Donor or acceptor doping using aliovalent cations in perovskites is the popular strategy for increasing the carrier concentration in order to improve the electrical conductivity, however that works at the expense of Seebeck coefficient. In this paper, we have shown that isovalent substitution can enhance the electron transport by manipulating the oxidation states of transition metals in perovskites, which can be the potential way of increasing the thermoelectric power factor of other oxides.

  9. Low Lattice Thermal Conductivity in a Wider Temperature Range for Biphasic-Quaternary (Ti,V)CoSb Half-Heusler Alloys
    N. S. Chauhan, D. Bhattacharjee, T. Maiti, Y. V. Kolen’ko, Y. Miyazaki, A. Bhattacharya, ACS Applied Materials & Interfaces, 14, 54736 (2022) [I.F. 10.383].
    DOI: https://doi.org/10.1021/acsami.2c16595  (pdf)

    Intrinsically high lattice thermal conductivity has remained a major bottleneck for achieving a high thermoelectric figure of merit (zT) in state-of-the-art ternary half-Heusler (HH) alloys. In this work, we report a stable n-type biphasic-quaternary (Ti,V)CoSb HH alloy with a low lattice thermal conductivity κL ≈ 2 Wm−1K−1 within a wide temperature range (300−873 K). This study upholds the new possibilities of finding biphasic-quaternary HH compositions with intrinsically reduced κL for prospective thermoelectric applications.

  10. Performance Analysis and Optimization of a SnSe-Based Thermoelectric Generator
    M. Bhattacharya, M. Ranjan, N. Kumar, and T. Maiti, ACS Applied Energy Materials, 4, 8211−8219 (2021) [I.F. 6.959].
    DOI: https://doi.org/10.1021/acsaem.1c01466  (pdf)

    Here we have posited the idea of using only p-type SnSe legs instead of traditional n-p leg architecture in TEG. In general n-type TE materials exhibit inferior performance compared to p-type which eventually causes the lower efficiency reported for TEG. Our proposed device architecture provides a new efficient way of designing TEG for electricity generation from waste heat.

  11. Compositional Fluctuations Mediated by Excess Tellurium in Bismuth Antimony Telluride Nanocomposites Yield High Thermoelectric Performance
    N. S. Chauhan, S. V. Pyrlin, O. I. Lebedev, L. S. A. Marques, M. M. D. Ramos, T. Maiti, K. Kovnir, B. A. Korgel, and Y. V. Kolen’ko, The Journal of Physical Chemistry C (JPCC), 125, 20184–20194 (2021) [I.F. 4.177].
    DOI: https://doi.org/10.1021/acs.jpcc.1c05375  (pdf)

    A high thermoelectric figure of merit (ZT) in state-of-the-art bismuth antimony telluride (BST) composites was attained by an excess tellurium-assisted liquid-phase compaction approach. Herein, we report a maximum ZT of ≈ 1.4 at 500 K attained for BST bulk nanocomposites fabricated by spark plasma sintering of colloidally synthesized (Bi,Sb)2Te3 platelets and Te-rich rods. The Te-rich nanodomains and antimony precipitation during sintering result in compositional fluctuations and atomic ordering within the BST–Te eutectic microstructure, which provides additional phonon scattering and hole contributions.

  12. The analysis of charge transport mechanism in mixed ionic electronic conductor composite of Sr2TiCoO6 double perovskite with yttria stabilized zirconia
    S. Saini, K. Balani, and T. Maiti, Journal of Physics: Condensed Matter, 33 (31), 315703 (2021) [I.F. 2.707].
    DOI: https://doi.org/10.1088/1361-648X/ac0283  (pdf)

    Here we report the charge transport mechanism using Universal dielectric response (UDR) in MIEC perovskite composites for potential application as SOFC anode. We have analyzed complex frequency-dependent AC conductivity data using Almond West (AW) power law; used Barton Nakajima and Namikawa (BNN) relation and the time-temperature superposition principle (TTSP) to find crossover from AC to DC conduction and finally Krammer-Kronig transformation connects the dielectric strength with conductivity relaxation and verifies the impedance data.

  13. High performance (ZT>1) n-type oxide thermoelectric composites from earth abundant materials
    M. Acharya, S. S. Jana, M. Ranjan and T. Maiti, Nano Energy, 84, 105905 (2021) [I.F. 19.069].
    DOI: https://doi.org/10.1016/j.nanoen.2021.105905  (pdf)

    Here we report A Major Breakthrough in the field of Oxide Thermoelectrics. We present the first experimental demonstration of ZT>1 in oxide thermoelectrics by engineering a rare-earth-free composite of Nb-doped SrTiO3 with Graphite. Using the concept of delocalizing electrons in oxides which suffer from Anderson's localization, we could achieve 250 times enhancement in the electrical conductivity primarily due to 21-times increase in mobility of electron. Moreover, we could keep the thermal conductivity in check by inducing phonon-glass-like temperature-independent phonon mean-free-path above Debye temperature of these composites, resulting in 15 times enhancement in ZT. Our simulation results suggest the potential of these oxide composites to generate kW-level electricity from MW-level waste heat present in manufacturing industries. This potentially opens up a new avenue of designing thermoelectric power generator to convert high temperature (>1000 K) waste heat into electricity.

  14. Formamidinium containing tetra cation organic-inorganic hybrid perovskite solar cell
    H. Singh, P. Dey, S. Chatterjee, P. Sen, and T. Maiti, Solar Energy, 220, 258–268(2021) [I.F. 7.188].
    DOI: https://doi.org/10.1016/j.solener.2021.03.031  (pdf)

    Here we reported excellent stability of organometallic halide perovskite solar cell with reasonable energy conversion efficiency by using tetra-cation including Na/K in B-site of perovskite solar cell. We have used f-TAS to unravel the ultrafast carrier dynamics in these perovskites. Interestingly use of Na instead of K shows better efficiency due to better control of the free electron-hole recombination and Auger recombination process in these perovskite solar cells.

  15. High-Entropy Perovskites: An Emergent Class of Oxide Thermoelectrics with Ultralow Thermal Conductivity
    R. Banerjee, S. Chatterjee, M. Ranjan, T. Bhattacharya, S. Mukherjee, S. S. Jana, A. Dwivedi, and T. Maiti, ACS Sustainable Chemistry & Engineering 8, 17022 (2020) [I.F. 9.224].
    [Featured as Cover Article in ACS Sustainable Chemistry & Engineering ]
    DOI: https://dx.doi.org/10.1021/acssuschemeng.0c03849

    High Entropy Materials appeared to have exciting prospects for various applications. Here, we report for the first time the application of High Entropy Perovskites for thermoelectric power generation. Ultralow thermal conductivity of 0.7 W/mK at 1100 K was achieved in this n-type rare-earth-free HEP oxide thermoelectric material. The concept of designing HEP to achieve ultra-low thermal conductivity potentially opens up a new avenue for enhancing thermoelectric performance of environmentally benign bulk oxides for high temperature thermoelectric power generation.

  16. Effect of semiconductor to metal transition on thermoelectric performance in oxide nanocomposites of SrTi0.85Nb0.15O3 with graphene oxide
    P. Dey, S. S. Jana, F. Anjum, T. Bhattacharya, and T. Maiti, Applied Materials Today, 21, 100869 (2020) [I.F. 8.663].
    DOI: https://doi.org/10.1016/j.apmt.2020.100869  (pdf)

    Here we have shown that manipulating metal-semiconductor transition one can enhance thermoelectric power factor significantly. We could achieve high ZT in oxide perovskite by making composite with Graphene Oxide. GO sheets embedded in the grain boundaries of polycrystalline STN facilitated electron transport without increasing much it’s thermal conductivity, resulting in 50 times enhancement in ZT due to GO incorporation. Maximum ZT of 0.5 was attained at 1200K in n-type bulk oxide nanocomposite made of environmentally benign, earth-abundant elements.

  17. Effect of B-site cation ordering on high temperature thermoelectric behavior of BaxSr2− xTiFeO6 double perovskites.
    D. S. Gyan, V. Sundram, A. Dwivedi, S. Bhowmick, and T. Maiti, Journal of Physics: Condensed Matter 32 (23), 235401 (2020) [I.F. 2.745].
    [Featured as Cover Page in JPCM]
    DOI: https://iopscience.iop.org/article/10.1088/1361-648X/ab7575  (pdf)

    Here we have shown that manipulating octahedral ordering in double perovskites one can enhance the thermoelectric power factor. With the help of DFT and high temperature XRD, we could decode that local clustering of Fe-octahedra is responsible for semiconductor to metal transition in BSTF double perovskites, which has opened up a new avenue of designing low-cost oxide thermoelectric materials.

  18. Device modeling and performance optimization of thermoelectric generators under isothermal and isoflux heat source condition.
    M. Ranjan and T. Maiti, Journal of Power Sources, 480, 228867 (2020) [I.F. 9.794].
    DOI: https://doi.org/10.1016/j.jpowsour.2020.228867  (pdf)

    The research area of TEG device simulation is still at its infancy. No one has ever reported TEG device simulation under constant heat flux condition which is generally found in the real application like furnace walls or exhaust gas in manufacturing industries, automobiles etc. Here we have optimized the TEG device parameters using FEM in conjugation with Taguchi method to maximize power output and efficiency of TEG under both isothermal and iso-flux condition.

  19. Organic-inorganic hybrid halide perovskites impregnated with Group 1 and 15 elements for solar cell application.
    P Dey, H Singh, RK Gupta, D Goswami, and T. Maiti, Journal of Physics and Chemistry of Solids, 144, 109518 (2020) [I.F. 4.383].
    DOI: https://doi.org/10.1016/j.jpcs.2020.109518  (pdf)

    In the current investigation we synthesized two novel perovskite materials, Methylammonium potassium bismuth lead iodide [CH_3 NH_3 K_0.25 Bi_0.25 Pb_0.5 I_3] (MKBPI) and Methylammonium sodium bismuth lead iodide [CH_3 NH_3 Na_0.25 Bi_0.25 Pb_0.5 I_3] (MNBPI). Fluorescence decay kinetics study revealed charge carrier lifetime on the order of nano second. Degradation studies were carried out by XRD, UV–Vis and DSC-TGA over 15 days. Remarkably thin films of these perovskites exhibited good stability even after 2 weeks.

  20. Reversible Ultra‐Slow Crystal Growth of Mixed Lead Bismuth Perovskite Nanocrystal–Presence of Dynamic Capping.
    S. Chatterjee, P. Dey, N. Das, K. Tiwari, T. Maiti, P Sen Chemistry–A European Journal 26 (7), 1506-1510 (2020) [I.F. 5.02].
    DOI: https://doi.org/10.1002/chem.201904905  (pdf)

    An ultra‐slow crystal growth process of a newly synthesized perovskite nanocrystal until 24 hours in a normal antisolvent medium is reported here. The crystal growth is observed through successive spectral evolutions in a macroscopic as well as in a microscopic regime. Through the reversibility in temperature dependence we have proved that the crystal growth is mediated by the dynamic capping.

  21. Magnetic and Electron Spin Resonance Properties of BaxSr2‐xTiCoO6Double Perovskites.
    D. S. Gyan, M. Saxena, R. M. Eremina, I. I. Fazlizhanov, D. V. Mamedov, I. V. Yatsyk, A. K. Shukla, A. Dwivedi, and T. Maiti, Phys. Status Solidi B, 257, 1900341 (2020) [I.F. 1.782].
    DOI: https://doi.org/10.1002/pssb.201900341  (pdf)
    This article also appears in Hot Topics: Magnetic Materials
    https://onlinelibrary.wiley.com/doi/toc/10.1002/(ISSN)1616-3028.hottopic-magneticmaterials

    This is our efforts to decode the magnetism in BSTC double perovskite in collaboration with IITBHU and Kazan Scientific Center of RAS.

  22. Design of Scalable Optical Decoder based on Hexagonal Plasmonic Modes induced on Topological Insulator Surface States.
    S. Srivastava, P. Jain, and T. Maiti, Scientific Reports,9, 9190 (2019), [I.F. 4.996]
    DOI: https://doi.org/10.1038/s41598-019-45607-z  (pdf)

    Here we have proposed a novel design of Optical Memory based on 2D optical lattice of scalar vortices obtained from a Hexagonal Plasmonic Lens encrypted on the surface of a Topological Insulator (BiSbTeSe). Analogous to Moore’s Law vis-à-vis electronic memories, Scaling of the Optical Memory has been proposed via increasing area density of vortices.

  23. Enhancement of thermoelectric power factor by inducing octahedral ordering in
    La2-xSrxCoFeO6 double perovskites.
    K. Tanwar, D. S. Gyan, S.Bhattachary, S. Vitta, A. Dwivedi, and T. Maiti, Physical Review B. 99 (17), 174105 (2019) [I.F. 3.908].
    DOI: https://doi.org/10.1103/PhysRevB.99.174105  (pdf)

    Here we have shown for the first time that inducing octahedral ordering in a band insulator type double perovskite one can achieve reasonable electrical conductivity to get good thermoelectric power factor and figure of merit, (ZT).

  24. Double perovskite (Sr2B'B''O6) oxides for high-temperature thermoelectric power generation—A review
    Tanmoy Maiti, Mandvi Saxena, Pinku Roy
    Journal of materials research, focus issue on 2019 Early Career Scholars 34, 107-125, (2019) [I.F. 2.909].
    DOI: https://doi.org/10.1557/jmr.2018.376 (pdf)

    Invited review on Double perovskite based thermoelectrics in JMR Focus issue on EARLY CAREER SCHOLARS IN MATERIALS SCIENCE

  25. Role of GO and r-GO in resistance switching behavior of bilayer TiO2 based RRAM
    Siddharth Srivastava, Pritam Dey, Shiva Asapu, and Tanmoy Maiti.
    Nanotechnology 29, 505702, (2018) [I.F. 3.953].
    DOI: 10.1088/1361-6528/aae135 (pdf)

    Conductive filament model explaining the role of GO and r-Go in resistance awitching behaviour of TiO2-based bilayer heterostructure RRAM

  26. Structure and thermoelectric properties of calcium doped Sr2TiCoO6 double perovskites
    Sudha, M. Saxena, K. Balani, and T. Maiti, Materials Science and Engineering: B. 244, 65-71 (2019) [I.F. 3.407].
    DOI: https://doi.org/10.1016/j.mseb.2019.04.025  (pdf)


  27. Synthesis and thermoelectric properties of Ba2TiFeO6 double perovskite with insight into the crystal structure
    D. S. Gyan, A. Dwivedi, P. Roy and T. Maiti, Ferroelectrics 536 (1), 146-155 (2018)
    DOI: https://doi.org/10.1080/00150193.2018.1528922  


  28. Far field superfocusing along with enhanced near field emission from hybrid spiral plasmonic lens inscribed with nano corrals slit diffractor
    Priyanshu Jain, Tanmoy Maiti
    Scientific Reports 8, 1127, (2018) [I.F. 4.996].
    DOI: 10.1038/s41598-018-19571-z (pdf)

    Here we proposed a novel hybrid spiral plasmonic lense with long focal length and subwavelength size beam spot offering a satisfactory working distance for various novel applications such as super resolution microscopy, nano lithography, bioimaging and sensing, optical tweezers, quantum communications, microfluidic lab-on-chip, angular momentum detectors, etc

  29. Role of structural distortion on thermoelectric aspects of heavily Sr2+ doped GdMnO3
    Khagesh Tanwar, Farheen Anjum, Ashutosh K. Shukla, and Tanmoy Maiti
    Journal of Applied Physics 124, 094902, (2018) [I.F. 2.877].
    DOI: 10.1063/1.5027125 (pdf)


  30. Effect of bismuth doping on thermoelectric properties of Sr2 TiCoO6
    Megha Acharya, Tanmoy Maiti
    Ferroelectrics 532, 28-37, 2019
    DOI: abs/10.1080/00150193.2018.1430432 (pdf)


  31. Evaluation of Ba doped Sr2TiFe0.5Mo0.5O6 double perovskites for high temperature thermoelectric power generation
    Mandvi Saxena, Tanmoy Maiti
    Scripta Materialia, 155, 85-88, (2018) [I.F. 6.302].
    DOI: org/10.1016/j.scriptamat.2018.06.022 (pdf)


  32. Simulation and Analytical Study of Optical Complex Field in Nano-corral Slits Plasmonic Lens
    Priyanshu Jain, Sandeep Gupta, Tanmoy Maiti
    Plasmonics 13, 2151-2160,(2018) [I.F. 2.726].
    DOI: org/10.1007/s11468-018-0732-4 (pdf)

    The is Prequel to our Scientific Reports Paper on Nano-corral Slits Plasmonic Lens.

  33. Spectral Studies of Lead-Free Organic-Inorganic Hybrid Solid-State Perovskites CH3NH3Bi2/3I3 and CH3NH3Pb1/2Bi1/3I3: Potential Photo Absorbers
    P Dey, V Khorwal, P Sen, K Biswas, Tanmoy Maiti
    Chemistry Select 3, 794-800, (2018) [I.F. 2.307].
    DOI: 10.1002/slct.201702745 (pdf)

    Here we have shown that Bi-based Lead-free organic-inorganic hybrid halide perovskites can be stable even after 48 days, which can pave way for the development of low-cost, stable and highly efficient perovskite solar cell.

  34. Colossal change in thermopower with temperature driven pn type conduction switching in LaxSr2-xTiFeO6 double perovskites
    P Roy,T Maiti
    Journal of Physics D: Applied Physics 51, 065104, (2018) [I.F. 3.409].
    DOI: 10.1088/1361-6463/aaa284 (pdf)

    Owing to their enormous change in thermopower on the order of mV/K coupled with p-n type resistance switching, LSTF double perovskites can be used as switches, thermistors, thyristors, thermal runaway monitors. It can also be used for chemical to thermal to electrical energy conversion on the basis of recently developed thermopower wave concept.

  35. Enhancement of thermoelectric power factor of Sr2CoMoO6 double perovskite by annealing in reducing atmosphere
    Khagesh Tanwar, Mandvi Saxena and Tanmoy Maiti
    Journal of Applied Physics 122, 164902 (2017) [I.F. 2.877].
    DOI: 10.1063/1.5001806 (pdf)


  36. Compositional modification of Sr2TiCoO6 double perovskites by Mo and La for high temperature thermoelectric applications
    Mandvi Saxena, Tanmoy Maiti
    Ceramics International 44, 2732-2737, (2017) [I.F. 5.532].
    DOI: 10.1016/j.ceramint.2017.11.003 (pdf)


  37. Multifilamentary Conduction Modeling in Transition Metal Oxide-Based RRAM.
    S. Asapu, T. Maiti.
    IEEE Transactions On Electron Devices 64, 3145-3150, (2017) [I.F. 3.221].
    DOI: 10.1109/TED.2017.2709249 (pdf)

    "3-D multifilamentary rupturemodel" has been developed in a transition metal oxide-based RRAM. Four different resistance states have been achieved by using three conduction filaments and their subsequent rupture, thus realizing the multiple resistance levels. By varying VSTOP, it has also been verified that the states thus obtained were because of the direct consequence of the conduction filaments.

  38. Effect of Spark Plasma Sintering (SPS) on the thermoelectric properties of SrTiO3 :15 at% Nb
    P. Roy, V. Pal, T. Maiti.
    Ceramics International 43, 12809-12813, (2017) [I.F. 5.532].
    DOI: 10.1016/j.ceramint.2017.06.170 (pdf)


  39. Large change in thermopower with temperature driven p-n type conduction switching in environment friendly BaxSr2-xTi0.8Fe0.8Nb0.4O6 double perovskites.
    P. Roy, V. Waghmare, K. Tanwar, T. Maiti.
    Phys. Chem. Chem. Phys., 19, 5818-5829 (2017) [I.F. 3.945]
    DOI: 10.1039/C6CP06273C, Paper (pdf)

    Temperature driven p-n type conduction switching in combination with colossal change in thermo-power in BaxSr2-xTi0.8Fe0.8Nb0.4O6 (BSTFN) double perovskites.

  40. Metal-like electrical conductivity in LaxSr2-xTiMoO6 oxides for high temperature thermoelectric power generation.
    M. Saxena and T.Maiti.
    Dalton Trans.,46, 5872-5879 (2017) [I.F. 4.569]
    DOI: 10.1039/C7DT00848A, Paper (pdf)

    Increasing electrical conductivity in oxides, which are inherently insulators, can be a potential route in developing oxide-based thermoelectric power generators with higher energy conversion efficiency.


  41. Environmental friendly Sr2TiMoO6 double perovskite for high temperature thermoelectric applications.
    M. Saxena, K. Tanwar and T. Maiti,.
    Scripta Materialia, 130, 205-209 (2017) [I.F. 6.302]. (pdf)


  42. Effect of Ba-doping on high temperature thermoelectric properties of Sr2TiMoO6 double perovskites.
    M.saxena and T.maiti.
    Journal of Alloys and Compounds 710, 472-478, (2017) [I.F. 6.371].(pdf)


  43. Enhanced thermoelectric figure-of-merit in environmentally benign BaxSr2-xTiCoO6 double perovskites.
    M. Saxena, P. Roy, M. Acharya, I. Bose, K. Tanwar and T. Maiti.
    Applied Physics Letters, 109, 263903 (2016) [I.F. 3.971].
    DOI: aip.scitation.org/doi/10.1063/1.4973281 (pdf)

    Here we have shown that inducing relaxor ferroelectricity with high Burns temperature (TD) resulting dipolar spin glass can be alternative route of engineering novel thermoelectric materials with high figure of merit.

  44. Environmentally friendly BaxSr2-xTiFeO6 double perovskite with enhanced thermopower for high temperature thermoelectric power generation.
    P. Roy, V. Waghmare and T. Maiti.
    RSC Advances, 2016,6, 54636-54643
    DOI: 10.1039/C6RA09629H, Paper (pdf)

    SrTiO3 based double perovskites, BaxSr2-xTiFeO6 (BSTF) compositions exhibit very large thermo-power (S~800 μV/K) which can be instrumental in designing novel materials for high temperature thermoelectric power generation.

  45. Electrothermal numerical modeling of multifilamentary conduction in Ta2O5-x/WO3-xbilayer oxides based RRAM.
    S. Asapu and T. Maiti.
    Ferroelectrics, 503, 1-12 (2016).
    DOI: doi.org/10.1080/00150193.2016.1217706 (pdf)

    In the present work, a "2D multifilament rupture model" has been developed on heterogeneous bilayered dielectric stack of Ta2O5-x/WO3-x resistive-RAM (RRAM) or resistive switching (RS) cell. Finite element method (FEM) has been used to solve a set of 3 self-consistent partial differential equations (PDEs) using a numerical solver.

  46. Synthesis and characterization of Sr2TiMO6 (M=Fe,Co) double perovskites for high temperature thermoelectric applications.
    P. Roy, I. Bose and T. Maiti.
    Integrated Ferroelectrics, 174, 34 (2016).
    DOI: 10.1080/10584587.2016.1190253 (pdf)

    The prospects of double perovskites based materials as the candidate for high temperature thermoelectric materials were investigated. Among the various complex perovskites, SrTiO3 based oxides had shown great potential for thermoelectric applications. In the current investigation, Sr2TiMO6 (M = Fe, Co) based double perovskites were synthesized using conventional solid-state route.

  47. T. Maiti, R. Guo, and A. S. Bhalla, "Evaluation of Experimental Resume of BaZrxTi1-xO3 with Perspective to Ferroelectric Relaxor Family: An Overview," Ferroelectrics, 425, 4-26 (2011). (2nd Most Read paper in Ferroelectrics since 2011; according to Ferroelectrics journal website)
  48. N. K. Karan, T. Maiti, R. Guo, A. S. Bhalla, and R. S. Katiyar, "Micro-Raman Spectra Studies of Zr4+ rich BaZrxTi1-xO3 (0.5 <= x <= 1.00) Phase Diagram," Journal of Raman Spectroscopy, 40, 370 (2009).
  49. T. Maiti, R. Guo, and A. S. Bhalla, "Structure-property phase diagram of BaZrxTi1-xO3 system, " Journal of American Ceramic Society (Invited Paper) 91 [6], 1769 (2008).
  50. T. Maiti, R. Guo and A. S. Bhalla, "Ferroelectric relaxor behavior in Ba(ZrxTi1-x) O3 :MgO Composites," Journal of Physics D: Applied Physics, 40, 4355 (2007).
  51. T. Maiti, R. Guo and A. S. Bhalla, "Enhanced electric field tunable dielectric properties of BaZrx relaxor ferroelectrics," Applied Physics Letters, 90, 182901 (2007).
  52. T. Maiti, R. Guo and A. S. Bhalla, "Tailored dielectric properties and tunability of lead free relaxor Ba(ZrxTi1-x)O3:MgO composites," Ferroelectrics, 361, 84 (2007). (pdf)
  53. T. Maiti, R. Guo and A. S. Bhalla, "Electric field dependent dielectric properties and high tunability of BaZrxTi1-xO3 relaxor ferroelectrics," Appl. Physics Letters, 89, 122909 (2006).
  54. T. Maiti, R. Guo and A. S. Bhalla, "The evolution of relaxor behavior in Ti4+ doped BaZrO3 Ceramics, " Journal of Applied physics, 100, 114109 (2006).
  55. T. Maiti, E. Alberta, R. Guo and A. S. Bhalla, "The polar cluster like behavior in Ti4+ substituted BaZrO3 Ceramics," Materials Letters, 60(29-30), 3861 (2006).
  56. S. Ghosh, T. Maiti, S. Sen and S. Mukhopadhyay, "Influence of gel-derived nanocrystalline spinel in a high alumina castable, " Ceramics International, 31(2), 333 (2005).
  57. S. Mukhopadhyay, S. Sen, T. Maiti, M. Mukherjee, R. N. Nandy and B. K. Sinhamahapatra, "In situ spinel bonded refractory castable in relation to co-precipitation and sol-gel derived spinel forming agents," Ceramics International, 29(8), 857 (2003).





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