Faculty Details

team

Pramoda Kumar Nayak

DST Ramanujan Fellow

HSB 253C

Ph.D. IIT Guwahati

Areas of Interest

  • Two-dimensional Materials
  • Topological Insulators
  • Quantum Dots
  • Van der Waals Heterostructures
  • Novel Superconducting Materials
  • Quantum Materials
  • Twistronics
  • Blue Energy
  • Membrane Technology
  • Van der Waals Heterostructures
  • Thermoelectrics

Current Research

My research group is focused on synthesis of several 2D quantum materials including transition metal dichalcogenides (TMDs), Topological Insulators (TIs) and anisotropic layered materials using mechanical exfoliation and chemical vapor deposition (CVD) and to explore the emerging quantum phenomena. We fabricate in-plane as well as van der Waals heterostructures made out of these materials for different inter-layer rotation, which leads to an immersing field known as Twistronics. In addition, we also work on technology development using 2D membranes for non-intermittent renewable energy generation (Blue Energy) using salinity gradient.

Students

Current PhD Students

  • PH17D204    RAVINDRA KUMAR (Co-Guidance)
  • PH18D049    RAJARAPU RAMESH (Co-Guidance)
  • PH19D035    MANAB MANDAL (Co-Guidance)
  • PH20D750    MADHURA GHOSH DASTIDAR (Co-Guidance)
  • ME18d303    Sharad Kumar Yadav (Joint Guidance)
  • MM19d301    Amel Krishnan (Joint Guidance)

Recent Publications

  • Layer parity dependent Raman-active modes and crystal symmetry in ReS2. Pranshoo Upadhyay, Nikhilesh Maity, Ravindra Kumar, Abhishek K. Singh, Pramoda K. Nayak. Physical Review B. 105. 045416.
    DOI: 10.1103/PhysRevB.105.045416. 2022.
  • Twist-Dependent Tuning of Excitonic Emissions in Bilayer WSe2. P. K. Barman, P. Upadhyay, S. K. Yadav, R. Rajarappu, Latha K.V. P., Meenakshisundaram N, Pramoda K. Nayak. ACS Omega. 07. 6412–6418.
    DOI: 10.1021/acsomega.1c07219. 2022.
  • Study of thermometry in two-dimensional Sb2Te3 from temperature dependent Raman Spectroscopy. Manavendra P. Singh, Manab Mandal, K. Sethupathi, M.S. Ramachandra Rao, Pramoda K. Nayak. Nanoscale Research Letters. 2021.
  • Interlayer excitonic states in a MoSe2/MoS2 van der Waals heterostructure. Ankit Arora, Pramoda K. Nayak*, Swastibrata Bhattacharya, Nikhilesh Maity, Abhishek K. Singh, Ananth Krishnan*,M.S. Ramachandra Rao*. Physical Review B. 2021.
  • Stacking angle dependent multiple excitonic resonances in bilayer tungsten diselenide. Ankit Arora, Pramoda K. Nayak, Tejendra Dixit, K. Lakshmi Ganapathi, Ananth Krishnan, and M. S. Ramachandra Rao. Nanophotonics. 2020.
  • Sequential growth of two-dimensional MoSe2-WSe2 lateral heterojunctions. Sharad Kumar Yadav, Vishal V R Nandigana, Pramoda K Nayak. AIP Conference Proceedings. 2265 . 030699. 2020.
  • Pulsed-Grown Graphene for Flexible Transparent Conductors. Pramoda K. Nayak*. Nanoscale Advances. 1. 1215-1223 . 2019.
  • Resonantly hybridized excitons in moiré superlattices in van der Waals heterostructures. Evgeny M. Alexeev, David A. Ruiz-Tijerina,Mark Danovich, Matthew J. Hamer, Daniel J. Terry, Pramoda K. Nayak et al....Kostya S. Novoselov, Roman V. Gorbachev, Hyeon Suk Shin, Vladimir I. Fal’ko, Alexander I. Tartakovskii. Nature. 567. 81-86. 2019.
  • Direct Growth of Graphene on Insulator Using Liquid Precursor via an Intermediate Nano Structured State Carbon Nanotube. Pramoda K. Nayak*. Nanoscale Research Letters. 14. 107 . 2019.
  • Plasmon induced brightening of dark exciton in monolayer WSe2 for quantum optoelectronics. Ankit Arora, Tejendra Dixit, Anil Kumar K V, Sivarama Krishanan K. Lakshmi Ganapathi, Ananth Krishnan*, Pramoda K. Nayak*, M.S. Ramachandra Rao*. Applied Physics Letters. 114 . 201101. 2019.
  • Plasmon Assisted Selective Enhancement of Direct Band Transitions in Multi-layer MoS2. Tejendra Dixit, Ankit Arora, Muralidhra Miryala, Masato Murakami, Pramoda K. Nayak, K. Lakshmi Ganapathi, M.S. Ramachandra Rao. IEEE Photonics. 11. 4501106. 2019.
  • Near Infrared Random Lasing in Multilayer MoS2. Tejendra Dixit, Ankit Arora, Ananth Krishnan, K. Lakshmi Ganapathi*, Pramoda K. Nayak*, M.S. Ramachandra Rao*. ACS Omega. 03. 14097–14102 . 2018.
  • Hydrogenation of Monolayer Molybdenum Diselenide via Hydrogen Plasma Treatment. Kyung Yeol Ma, Seong In Yoon, A-Rang Jang, Hu Young Jeong, Yong Jin Kim, Pramoda K. Nayak, Hyeon Suk Shin. Journal of Material Chemistry C. 05 . 11294-11300. 2017.
  • Imaging of interlayer coupling in van der Waals heterostructures using a bright-field optical microscope. Evgeny M. Alexeev, Alessandro Catanzaro, Oleksandr V. Skrypka, Pramoda K. Nayak et al.. Nano Letters. 17 . 5342–5349. 2017.
  • Probing Evolution of Twist Angle Dependent Interlayer Exciton in MoSe2/WSe2 van der Waals Heterostructures. Pramoda K. Nayak et al.. ACS Nano. 11 . 4041–4050. 2017.
  • Variation of crystallinity of Cu and Cu2O nanowires arrays grown in various pores of porous alumina membrane. Yu-Min Shen, Wen-Fang Chiu, Sheng-Chang Wang, Pramoda K. Nayak, Dipti. R. Sahu, Jow-Lay Huang . Advanced Materials Letters. 08 . 1046-1051. 2017.
  • Prevention of Transition Metal Dichalcogenide Photodegradation by Encapsulation with h-BN Layers. Seongjoon Ahn, Gwangwoo Kim, Pramoda K. Nayak et al. . ACS Nano. 10. 8973–8979 . 2016.
  • Robust Room Temperature Valley Polarization in Monolayer and Bilayer WS2. Pramoda K. Nayak, Fang-Cheng Lin, Chao-Hui Yeh, J.S. Huang and Po-Wen Chiu. Nanoscale. 08 . 6035-6042 . 2016.
  • Microstructure and wear behavior of spark plasma sintering sintered Al 2O3/WC-based composite. Wei-Hsio Chen, Hao-Tung Lin, Jianmin Chen, Pramoda K Nayak, Alex C Lee, Horng-Hwa Lu, Jow-Lay Huang. International Journal of Refractory Metals and Hard Materials. 54 . 279-283. 2016.
  • Effect of nanosized TiC0.37N0.63 on unlubricated wear responses of Si3N-based nanocomposites under low hertizian stress. Alex C Lee, Horng-Hwa Lu, Takashi Goto, Rong Tu, Hua-Tay Lin, Ding-Fu Lii, Pramoda K. Nayak, Jow-Lay Huang. Journal of American Ceramic Society. 99 . 971-978 . 2016.
  • Enhanced mechanical properties of WC-reinforced Al2O3 ceramics via spark plasma sintering. Wei-Hsio Chen, Pramoda K. Nayak, Hao-Tung Lin, Alex C. Lee, Jow-Lay Huang. Ceramic International. 41 . 1317-1321. 2015.
  • Nanopowder processing of ultrafine Si3N4 with improved wear resistance. Alex C Lee, Horng-Hwa Lu, Hua-Tay Lin, Pavol Å ajgalík, Ding-Fu Lii, Pramoda K. Nayak, Ching-Yu Chen, Jow-Lay Huang. Journal of Asian Ceramic Societies. 03 . 06-12. 2015.
  • Sintering behavior and mechanical properties of WC-Al2O3 composites prepared by spark plasma sintering (SPS). Wei-Hsio Chen, Hao-Tung Lin, Pramoda K. Nayak, Man-Ping Chang, Jow-Lay Huang. International Journal of Refractory Metals and Hard Materials. 48 . 414-417 . 2015.
  • Layer dependent optical conductivity in atomic thin WS2 by reflection contrast spectroscopy. Pramoda K. Nayak, Chao-Hui Yeh, Yu-Chen Chen and Po-Wen Chiu. ACS applied Materials and Interfaces. 06 . 16020-16026. 2014.
  • Probing interlayer coupling in twisted bilayer graphene by Raman spectroscopy. Chao-Hui Yeh , Yung-Chang Lin, Pramoda K. Nayak, Chun-Chieh Lu, Kazu Suenaga, Po-Wen Chiu. Journal of Raman Spectroscopy. 45. 912-917. 2014.
  • Material properties of tungsten carbide-alumina composites fabricated by spark plasma sintering. Wei-Hsio Chen, Hao-Tung Lin, Pramoda K Nayak, Jow-Lay Huang. Ceramic International. 40 . 15007-15012. 2014.
  • Synthesis of nanostructured Tungsten Carbide via Metal-Organic Chemical Vapor Deposition and Carburization Process. Wei-Hsio Chen, Pramoda K. Nayak, Hao-Tung Lin, Man-Ping Chang, and Jow-Lay Huang. International Journal of Refractory Metals and Hard Materials. 47 . 44-48. 2014.
  • Graphene Coated Ni Films: A Protective Coating. Pramoda K. Nayak, Chan-Jung Hsu, Sheng-Chang Wang, James C. Sung, Jow-Lay Huang. Thin Solid Films. 529 . 312-316. 2013.
  • Microstructure analysis and mechanical properties of a new class of of Al2O3-Cr2O3/Cr3C2 nanocomposite fabricated by spark plasma sintering. Pramoda K. Nayak, Hao-Tung Lin, Man-Ping Chang,Wei-Hsio Chen and Jow-Lay Huang. Journal of the European Ceramic Society. 33 . 3095–3100. 2013.
  • Growth of single crystal SiC by liquid phase epitaxy using Sm/Co as unique solvent. Sheng-Chang Wang, Pramoda K. Nayak, You-Ling Chen and Jow-Lay Huang. Journal of Nanoengineering and Nanosystems. 226 . 75-79. 2012.
  • Spinodal Decomposition of Mono- to Few-Layer Graphene on Ni Substrates at a Relatively Low Temperature. Chan-Jung Hsu, Pramoda K. Nayak, Sheng-Chang Wang, James C. Sung, Chiang-Lun Wang, Chung-Lin Wu and Jow-Lay Huang. Journal of Nanoscience and Nanotechnology. 12. 2442-2447 . 2012.
  • Mechanical properties of Al2O3-Cr2O3/Cr3C2 nanocomposite fabricated by spark plasma sintering. Hao-Tung Lin, Pramoda K. Nayak, Bo-Zon Liu, Wei-Hsio Chen and Jow-Lay Huang. Journal of the European Ceramic Society. 32 . 77-83. 2012.
  • Indentation Deformation and Microcracking in β-Si3N4 Based Nanoceramic. Ching-Huan Lee, Horng-Hwa Lu, Takashi Goto, Rong Tu, Hao-Chi Liu, Chang-An Wang, Chiang-Rong Ruan, Pramoda K. Nayak, Qing-Yu Chen, Jow-Lay Huang. Journal of the American Ceramic Society. 95. 1421-1428. 2012.
  • Microstructure Investigation of SiC Films Synthesized from Liquid Phase in Sm-Co melts. Pei-Ting Lee, Pramoda K. Nayak, Sheng-Chang Wang, James C. Sung and Jow-Lay Huang. Superlattices and Microstructures. 50 . 634-646. 2011.
  • Electron-Energy Loss Spectroscopy and Raman Studies of Nanosized Chromium Carbide Synthesized During Carbothermal Reduction Process from Precursor Cr(CO)6. Hao-Tung Lin, Pramoda K. Nayak, Sheng-Chang Wang, Shin-Yun Chang and Jow-Lay Huang. Journal of the European Ceramic Society. 31 . 2481-2487 . 2011.
  • Microstructural Analysis of Single Crystal SiC Prepared by Novel Liquid Phase Epitaxy. Sheng-Chang Wang, Pramoda K. Nayak, You-Ling Chen, James C. Sung and Jow-Lay Huang. Ceramics International. 37. 3671-3676. 2011.
  • Study of color change and microstructural development of Al2O3-Cr2O3/Cr3C2 nanocomposites prepared by spark plasma sintering. Hao-Tung Lin, Bo-Zon Liu, Wei-hsio Chen, Jow-Lay Huang and Pramoda K. Nayak. Ceramics International. 37 . 2081-2087. 2011.
  • Microstructure and fracture behaviour of β–Si3N4 based nanoceramics. Ching-Huan Lee, Horng-Hwa Lu, Chang-An Wang, Wen-Tse Lo, Pramoda K. Nayak and Jow-Lay Huang. Ceramics International. 37 . 641-645 . 2011.
  • Effect of heating rate on spark plasma sintering of a nanosized β-Si3N4 based powder. Ching-Huan Lee, Horng-Hwa Lu, Chang-An Wang, Pramoda K. Nayak, and Jow-Lay Huang. Journal of the American Ceramic Society. 94 . 1182-1190. 2011.
  • Influence of conductive nano-TiC on microstructural evolution of Si3N4 based nanocomposites in spark plasma sintering (SPS). Ching-Huan Lee, Horng-Hwa Lu, Chang-An Wang, Pramoda K. Nayak, and Jow-Lay Huang. Journal of the American Ceramic Society. 94 . 959-967 . 2011.
  • Microstructure and mechanical properties of TiN/Si3N4 based nanocomposites by spark plasma sintering (SPS). Ching-Huan Lee, Horng-Hwa Lu, Chang-An Wang, Pramoda K. Nayak and Jow-Lay Huang. Journal of Alloys and Compounds. 508 . 540-545 . 2010.
  • Characterization of ordered Cu2O nanowire arrays prepared by heat treated Cu/PAM composite. Yu-Min Shen, Yueh-Ting Shih, Sheng-Chang Wang, Pramoda K. Nayak and Jow-Lay Huang. Thin Solid Films. 519 . 1687-1692. 2010.
  • Phase Composition and Photoluminescence Properties of RF Sputtered Pure and Sm3+ doped ZrO2 Thin Films. Pramoda K. Nayak, Wei-Jung Kao, Diptiranjan Sahu and Jow-Lay Huang. Journal of the American Ceramic Society. 93 . 3481-3485. 2010.
  • Carbothermal Reduction Process for Synthesis of Nanosized Chromium Carbide via Metal Organic Chemical Vapor Deposition. Sheng-Chang Wang, How-Tung Lin, Pramoda K. Nayak , Shin-Yun Chang and Jow-Lay Huang. Thin Solid Films. 518 . 7360-7365. 2010.
  • Evolution of Binary Phase TiC/Ti3SiC2 Composites from Ti/TiC/Si by Hot Pressed Reactive Sintering. Wen-Tse Lo, Pramoda K. Nayak, Horng-Hwa Lu, Ding-Fwu Lii and Jow-Lay Huang. Materials Science and Engineering B. 72 . 18-23. 2010.
  • Design and Fabrication of a High Tc BSCCO based Square Helmholtz Coil. P. K. Nayak, U. Prasad, A. Amardas, D. Patel& S. Pradhan. Journal of Physics: Conference Series. 208 . 012021. 2010.
  • I-V characteristics and Magnetic field profile studies in High Tc BSCCO based Helmholtz Coil. P. K. Nayak, U. Prasad, A. N. Sharma, D. Patel, S. Kedia & S. Pradhan. Physica C. 469 . 211-215. 2009.
  • Study of Critical Current Density from ac Susceptibility Measurements in (La1-xYx)2Ba2CaCu5Oz Superconductors.. P. K. Nayak and S. Ravi. Indian J. Phys.. 82. 603-610 . 2008.
  • Crystal Structure and Characterization of Pure and Ag doped (La1-xYx)2Ba2CaCu5Oz (0 ï‚£ x ï‚£ 0.5) Superconductors.. P. K. Nayak and S. Ravi. Journal of the American Ceramic Society. 90 . 2819-2823. 2007.
  • Excess Conductivity and Magneto-conductivity Studies in pure and Ag doped (La1-xYx)2Ba2CaCu5Oz superconductors.. P. K. Nayak and S. Ravi. Supercond. Sci. Technol.. 19 . 1209-1214. 2006.
  • Excess Conductivity in the Paracoherence Regime of pure and Ag doped (La1-xYx)2Ba2CaCu5Oz superconductors.. P. K. Nayak and S. Ravi. Solid State Commun.. 140 . 464-468. 2006.
  • Fluctuation Magneto-Conductivity in La-Ba-Ca-Cu-O Superconductors. P. K. Nayak and S. Ravi. Journal of Superconductivity and Novel Magnetism. 19 . 515-520. 2006.
  • AC susceptibility and intergranular critical current density study in pure and Ag doped (La1-xYx)2Ba2CaCu5Oz Superconductors.. P. K. Nayak and S. Ravi. Solid State Commun.. 138 . 377-381. 2006.
  • Excess Conductivity in the Mean Field and Paracoherence Regimes of (La1.6Y0.4)Ba2 Ca0.8 Cu4.8Oz Superconductors. P. K. Nayak and S. Ravi. Modern Physics Letters B. 20 . 111-122. 2006.
  • AC susceptibility study in the single phase Bi-2223 system. S. Keshri, V. Dayal, S. Ravi and P. K. Nayak. Czech. J. Phys.. 55 . 73-84 . 2005.

Teaching

  • 2018 :  (Jul - Nov) - PH5330 Laboratory for Synthesis and characterization of Functional Materials / PH6022 Introduction to Nanoscience
  • 2019 :  (Jan - May) - PH5120 Physics Lab II (PG); (Jul - Nov) - PH5330 Laboratory for Synthesis and characterization of Functional Materials / PH6022 Introduction to Nanoscience
  • 2020 :  (Jan - May) - PH5350 Laboratory for Physical Property Measurement and Transducer / Sensor Element Characteristics of Func / PH7090 Foundations in Experiemntal Physics ; (Jan - May) - PH1030 Physics Laboratory I ; (Jul - Nov)-PH6022 Introduction to Nanoscience/PH5350 Laboratory for Physical Property Measurement and Transducer / Sensor Element Characteristics of Func
  • 2021 :  (Jan - May) - PH7090 Foundations in Experiemntal Physics; (Jul - Nov)-PH6022 Introduction to Nanoscience
  • 2022 :  (Jan - May) - PH1020 Physics II (UG) ; (Jul - Nov) - PH7090 Foundations in Experiemntal Physics