Solid State Ionics Lab | Dr. Sunil Kumar
PUBLICATIONS

    108. Pratiksha Gami et al., Under review, xx: xxxx (2025)


    107. Samriddhi Saxena et al., Under review, xx: xxxx (2025)


    106. Pratiksha Gami et al., Under review, xx: xxxx (2025)


    105. Hari Vasavan et al., "Elevating the Concentration of Na ions to 1 in P2 Type Layered Oxide Cathodes" Advanced Functional Materials, xx: 2421733 (2025)


    104. Neha Dagar et al., "Ti-substitution Facilitating Anionic Redox and Cycle Stability in P2-type Na2/3Mn2/3Ni1/3O2 Na-ion Battery Cathode" Energy & Fuels, xx: xxxx (2025)


    103. Pratiksha Gami et al., Revision submitted, xx: xxxx (2025)


    102. Samriddhi Saxena et al., Revision submitted, xx: xxxx (2025)


    101. Pratiksha Gami et al., "Fostering Li-ion Conduction in Zr-Sn-Al-based Mid-Entropy NASICON Electrolyte", Ceramics International, 50: 47612 (2024)


    100. Asish Kumar Das et al., "Advancing High-Energy Solid-State Batteries with High-Entropy NASICON Solid Electrolytes", ACS Applied Energy Materials, 7: 8301 (2024)


    99. Neha Dagar et al., "Distinct Electrochemical Behavior of P3 and P2 Polytypes of Mn/Ni-based Na-ion Battery Cathode", Materials Letters, 369: 136768 (2024)


    98. Pratiksha Gami et al., "NASICON-type Medium Entropy Li1.5Sn1.0Al0.5Zr0.5(PO4)3 Electrolyte for Solid State Li Metal Batteries", Journal of Power Sources, 618: 235214 (2024)


    97. Asish Kumar Das et al., "LiTa2PO8-based Polymer-Ceramic Electrolyte Paved the way to High-Performance Solid-State Lithium Metal Batteries", Energy & Fuels, 38: 11253 (2024)


    96. Samriddhi Saxena et al., "Elucidating the Electrochemical Behaviour of a P3–type High Na Content Cathode", Energy & Fuels, 38: 12140 (2024)


    95. Hari Narayanan Vasavan et al., "Rational design of an optimal Al-substituted layered oxide cathode for Na-ion batteries", Electrochimica Acta, 494: 144457 (2024)


    94. Asish Kumar Das et al., "Integrated Cathode-Electrolyte (Li6.55La3Zr1.55Ta0.45O12/PEO-LiTFSI) Architecture Driven Excellent Performance of Solid-State Lithium Metal Batteries", Journal of Energy Storage, 94: 112452 (2024)


    93. Pratiksha Gami et al., "Y-doped LiZr2(PO4)3 in PVDF-HFP Composite Electrolyte for Solid State Li Metal Batteries", ACS Applied Engineering Materials, 2: 1278 (2024)


    92. Hari Narayanan Vasavan et al., "Identification of Optimal Composition with Superior Electrochemical Properties Along the Zero-Mn3+ Line in Na0.75(Mn-Al-Ni)O2 Pseudo Ternary System", Journal of Energy Chemistry, 96: 206 (2024)


    91. Manish Badole et al., "Remarkable Enhancement in Piezoelectric Performance of [001] Textured Na0.4K0.1Bi0.5TiO3 Ceramic", Materials Research Bulletin, 176: 112841 (2024)


    90. Asish Das et al., "Enhancing room temperature performance of solid-state lithium cell via a facile solid electrolyte-cathode interface design", Materials Today Sustainability, 26: 100758 (2024)


    89. Samriddhi Saxena et al., "Deciphering the role of optimal P2/O3 phase fraction in enhanced cyclability and specific capacity of layered oxide cathodes", Chemical Engineering Journal, 485: 149921 (2024)


    88. Manish Badole et al., "Grain morphology-dependent dielectric and piezoelectric properties of lead-free KBT ceramics", Journal of the American Ceramic Society, 107: 2304 (2024)


    87. Hari Narayanan Vasavan et al., "Impact of P3/P2 mixed phase on the structural and electrochemical performance of Na0.75Mn0.75Al0.25O2 cathode", Journal of Energy Storage, 74: 109428 (2023)


    86. Hari Narayanan Vasavan et al., "Unveiling the potential of P3 phase in enhancing the electrochemical performance of a layered oxide cathode", Materials Today: Energy, 37: 101380 (2023)


    85. Manish Badole et al., "High-Performance [00l]-Textured BiAlO3-Doped K0.5Bi0.5TiO3 Ceramics", ACS Applied Electronic Materials, 5: 3436 (2023)


    84. Asish Das et al., "Highly conductive ceramic-in-polymer composite electrolyte enabling superior electrochemical performance for all-solid-state lithium batteries", Ceramics International, 49: 29719 (2023)


    83. Samriddhi Saxena et al., "Tailored P2/O3 phase-dependent electrochemical behavior of Mn-based cathode for sodium-ion batteries", Journal of Energy Storage, 64: 107242 (2023)


    82. Manish Badole et al., "Piezoelectric properties and structural evolution in La- and Al-modified K0.5Bi0.5TiO3 ceramics", Journal of Alloys and Compounds, 944: 169204 (2023)


    81. Hari Narayanan Vasavan et al., "Excellent Structural Stability-Driven Cyclability in P2-Type Ti-Based Cathode for Na-Ion Batteries", ACS Applied Energy Materials, 6: 2440 (2023)


    80. Anjali Mehta et al., "Phonon dynamics in lead free perovskite (1-x)KNN-xBAN (x = 0.0–0.1): a temperature dependent raman study", Physica Scripta, 98: 035711 (2023)


    79. Manish Badole et al., "Improved dielectric and relaxor behavior in LaScO3-doped K0.5Bi0.5TiO3 ceramics", Journal of Materials Science: Materials in Electronics, 33: 25661 (2022)


    78. Manish Badole et al., "Phenomenal Improvement of Piezoelectric Voltage Coefficient in [00l] Textured K0.5Bi0.5TiO3 Ceramics", Materialia, 26: 101568 (2022)


    77. Hari Narayanan Vasavan et al., "Enhanced rate performance and specific capacity in Ti-substituted P2-type layered oxide enabled by crystal structure and particle morphology modifications", Chemical Engineering Journal, 448: 137662 (2022)


    76. K Narasimharao et al., "Theory abide experimental investigations on morphology driven enhancement of electrochemical energy storage performance for manganese titanate perovskites electrodes", Journal of Power Sources, 538: 231525 (2022)


    75. Hari Narayanan Vasavan et al., "Structural and transport properties of P2-Type Na0.70Ni0.20Cu0.15Mn0.65O2 layered oxide", Ceramics International, 48: 28986 (2022)


    74. Manish Badole et al., "The role of salts selection on phase formation and electrical properties of K0.5Bi0.5TiO3 ceramics fabricated via molten salt synthesis", Materials Chemistry and Physics, 283: 126017 (2022)


    73. Sushmita Dwivedi et al., "Influence of annealing environments on the conduction behaviour of KNN-based ceramics", Ceramics International, 48: 18057 (2022)


    72. Sushmita Dwivedi et al., "Dielectric relaxations in NASICON-type Li1.25Zr1.75Al0.25(PO4)3 solid electrolyte", Functional Materials Letters, 15 (2): 2250012 (2022)


    71. Manish Badole et al., "Anomalous dielectric behavior of poled K0.5Bi0.5TiO3 ceramics", Ceramics International, 48 (8): 11166-11172 (2022)


    70. Manish Badole et al., "Poling Effect on Electrical Properties of KBT based Piezoceramic", Proceedings of the 65th DAE Solid State Physics Symposium (DAE-SSPS 2021), 55: 942 (2021)


    69. Hari Narayanan Vasavan et al., "Synthesis and Transport Properties of P2-type Na0.78Cu0.22Fe0.11Mn0.67O2 Layered Oxide", Proceedings of the 65th DAE Solid State Physics Symposium (DAE-SSPS 2021), 55: 944 (2021)


    68. Sushmita Dwivedi et al., "Relaxation processes and conduction behaviour in PVDF-TrFE and KNN-based composites", Polymer, 232: 124164 (2021)


    67. Sushmita Dwivedi et al., "Multifunctional lead-free K0.5Bi0.5TiO3-based ceramic reinforced PVDF matrix composites", Journal of Alloys and Compounds, 871: 159616 (2021)


    66. Tanvi Pareek et al., "On processing structure–conductivity relations in NASICON-type LiSn2(PO4)3", Bulletin of Materials Science, 44: 177 (2021)


    65. Mohd Nasir et al., "Cluster spin-glass-like dynamics in Mn-rich La2Ni0.5Mn1.5O6 ferromagnetic insulator", Journal of Physics: Condensed Matter, 33: 225803 (2021)


    64. Manish Badole et al., "Significantly improved dielectric and piezoelectric properties of BiAlO3 modified potassium bismuth titanate lead-free ceramics", Materials Science & Engineering: B, 262: 114749 (2020)


    63. Shadab Ali Ahmad et al., "LiSn2(PO4)3-based polymer-in-ceramic composite electrolyte with high ionic conductivity for all-solid-state lithium batteries", Journal of Solid State Electrochemistry, 24: 2407-2417 (2020)


    62. Tanvi Pareek et al., "Effect of NASICON-type LiSnZr(PO4)3 ceramic filler on the ionic conductivity and electrochemical behavior of PVDF based composite electrolyte", Journal of Alloys and Compounds, 824: 153991 (2020)


    61. Shadab Ali Ahmad et al., "Fast Li+ conduction in (PEO+LiClO4) incorporated LiSn2(PO4)3 polymer-in-ceramic solid electrolyte", AIP Conference Proceedings, 2265: 030596 (2020)


    60. Sushmita Dwivedi et al., "Effects of LaScO3 doping on structure, dielectric, and piezoelectric properties of K0.5Na0.5NbO3 piezoceramics", Journal of Applied Physics, 127: 094104 (2020)


    59. Manish Badole et al., "Elucidating the conduction behavior in KBT ceramic", AIP Conference Proceedings, 2265: 030595 (2020)


    58. Sushmita Dwivedi et al., "A study on the structure, dielectric and piezoelectric properties of BaAl0.5Nb0.5O3 modified K0.5Na0.5NbO3 ceramics", AIP Conference Proceedings, 2265: 030600 (2020)


    57. Mohd Nasir et al., "Evidence of cluster-glass and Griffiths-like phases in partially ordered La2FeMnO6 double perovskite", Journal of Physics D: Applied Physics, 53: 375003 (2020)


    56. Mohd Nasir et al., Ceramics International, 46: 4191 (2019)


    55. Sushmita Dwivedi et al., Journal of Materials Science: Materials in Electronics, 30: 15084 (2019)


    54. Anita Verma et al., Journal of Materials Science: Materials in Electronics, 30: 15005(2019)


    53. Birender Singh et al., Journal of Physics: Condensed Matter, 31: 395701 (2019)


    52. Arun Kumar Yadav et al., Applied Physics A, 125: 418 (2019)


    51. Mohd Nasir et al., Physica Status Solidi B, 1900019 (2019)


    50. Tanvi Pareek et al., AIP Conference Proceedings, 2100: 020046 (2019)


    49. Anita Verma et al., AIP Conference Proceedings, 2100: 020019 (2019)


    48. Mohd Nasir et al., Journal of Magnetism and Magnetic Materials, 483: 114-113 (2019)


    47. Anita Verma et al., Journal of Alloys and Compounds, 792: 95-107 (2019)


    46. Arun Kumar Yadav et al., AIP Conference Proceedings, 2100: 020018 (2019)


    45. Anita Verma et al., Journal of Applied Physics, 125: 054101 (2019)


    44. Mohd Nasir et al., ACS Applied Electronic Materials, 1: 141-153 (2019)


    43. Tanvi Pareek et al., Journal of Alloys and Compounds, 777: 602-611 (2019)


    42. Sushmita Dwivedi et al., RSC Advances, 8: 24286-96 (2018)


    41. Anita Verma et al., Ceramics International, 44: 20178-86 (2018)


    40. Tanvi Pareek et al., Electrochimica Acta, 263: 533-43 (2018)


    39. Arun Kumar Yadav et al., Journal of Alloys and Compounds, 765: 278-86 (2018)


    38. Vishwanathan Ramar et al., Electrochimica Acta, 271: 120-126 (2018)


    37. Anita Verma et al., Journal of Applied Physics, 123: 224101 (2018)


    36. Arun Kumar Yadav et al., Journal of Applied Physics, 123: 124102 (2018)


    35. Saurabh Tiwari et al., Superlattices and Microstructures, 122: 316-323 (2018)


    34. Milind Kumar et al., AIP Conference Proceedings, 1942: 140026 (2018)


    33. Ekta Poonia et al., Physica E: Low-dimensional Systems and Nanostructures, 101: 284-93 (2018)


    32. Deepu Kumar et al., AIP Conference Proceedings, 1942: 140035 (2018)


    31. Gaurav Bajpai et al., Scripta Materialia, 144: 27-30 (2018)


    30. Anita Verma et al., AIP Conference Proceedings, 1942: 030024 (2018)


    29. Mohd Nasir et al., AIP Conference Proceedings, 1942: 110029 (2018)


    28. Mohd Nasir et al., Acta Crystallographica, A70: C224 (2017)


    27. Arun Kumar Yadav et al., Journal of Materials Science: Materials in Electronics, 28: 10730–8 (2017)


    26. Tulika Srivastava et al., Journal of Applied Physics, 122: 025106 (2017)


    25. Mohd Nasir et al., Royal Society Open Science, 4: 170339 (2017)


    24. Sunil Kumar et al., Journal of Materials Science: Materials in Electronics, 28: 12332-41 (2017)


    23. Arun Kumar Yadav et al., Journal of Alloys and Compounds, 701: 619-25 (2017)


    22. Mohd Nasir et al., RSC Advances, 7: 31970-9 (2017)


    21. Tulika Srivastava et al., Ceramics International, 43: 5668-73 (2017)


    20. Sunil Kumar et al., AIP Conference Proceedings, 1832: 110025 (2017)


    19. Anita Verma et al., Journal of Materials Science: Materials in Electronics, 28: 19017-24 (2017)


    18. Arun Kumar Yadav et al., RSC Advances, 7: 39434-42 (2017)


    17. Gaurav Bajpai et al., Journal of Nanoscience and Nanotechnology, 17: 1806 - 12 (2017)


    16. Tulika Srivastava et al. 13th International Conference on Fibre Optics and Photonics, W3A-88 (2016)


    15. Sunil Kumar and Palani Balaya, Solid State Ionics, 296: 1-6 (2016)


    14. Tulika Srivastava et al., Scripta Materialia, 124: 11-14 (2016)


    13. Mohd Nasir et al., RSC Advances, 6: 103571-8 (2016)


    12. Gaurav Bajpai et al. IOP Conference Series: Materials Science and Engineering, 149: 012186 (2016)


    11. Sunil Kumar and K B R Varma, Bulletin of Materials Science, 37: 1233–41 (2014)


    10. Sunil Kumar et al. AIP Conference Proceedings, 1512: 998 (2013)


    9. Sunil Kumar et al., Journal of the American Ceramic Society, 95: 1339-42 (2012)


    8. Sunil Kumar et al., Materials Chemistry and Physics, 136: 680-7 (2012)


    7. Sunil Kumar and K. B. R. Varma, Journal of Materials Science, 46: 2606-10 (2011)


    6. Sunil Kumar and K. B. R. Varma, Current Applied Physics, 11: 203-10 (2011)


    5. Sunil Kumar and K. B. R. Varma, Advanced Science Letters, 3: 20-7 (2010)


    4. Sunil Kumar and K. B. R. Varma, Materials Science and Engineering B, 172: 177-82 (2010)


    3. Sunil Kumar and K. B. R. Varma, Journal of Physics D: Applied Physics, 42: 075405 (2009)


    2. Sunil Kumar and K. B. R. Varma, Solid State Communications, 147: 457-60 (2008)


    1. Sunil Kumar and K. B. R. Varma, Solid State Communications, 146: 137-42 (2008)

CONFERENCE PRESENTATIONS & INVITED TALKS

    64. Neha Dagar, Samriddhi Saxena, Hari Narayanan Vasavan, Asish Kumar Das, Pratiksha Gami, and Sunil Kumar, Ti-doped Na2/3Mn2/3Ni1/3O2 Na-ion Battery Cathode with Reversible Anionic Redox., International Conference in Asia – 2024 (IUMRS-ICA 2024), held at UGC-DAE Consortium for Scientific Research, Indore, Madhya Pradesh, India (December 2024).


    63. Pratiksha Gami, Asish Kumar Das, and Sunil Kumar, Designing a Composite Electrolyte using a Mid-entropy NASICON-based Filler and Miscible Polymer Blend for Fast-charging Solid-State Lithium Metal Batteries, International Conference in Asia – 2024 (IUMRS-ICA 2024), held at UGC-DAE Consortium for Scientific Research, Indore, Madhya Pradesh, India (December 2024).


    62. Sunil Kumar, Exploration of Nax(Mn-Ni-Al)O2 phase diagram for Na-ion battery cathodes, 1st National Meeting on Sodium(-ion) Batteries, held at Indian Institute of Technology Bombay, Maharashtra, India (October 2024).


    61. Sunil Kumar, ‘Beyond Li-ion’ Batteries for EVs, IITM - IITI Interactive Workshop on Zero-Emission Trucking and E-Mobility, held at Indian Institute of Technology Madras, Tamilnadu, India (September 2024).


    60. Neha Dagar, Hari Narayanan Vasavan, Samriddhi Saxena, Asish Kumar Das Pratiksha Gami, Sonia Deswal, Pradeep Kumar, and Sunil Kumar, Synthesis and Characterization of P3 and P2 Phases of Mn/Ni-based Na-ion Battery Cathodes. International Conference on Energy and Environmental Materials (E2M 2024), held at Indian Institute of Technology Indore, Madhya Pradesh, India (July 2024).


    59. Pratiksha Gami, Manish Badole, Hari Narayanan Vasavan, Asish Kumar Das, Samriddhi Saxena, Neha Dagar, Velaga Srihari, and Sunil Kumar, NASICON-type Medium Entropy Li1.5Sn0.5Al0.5Zr0.5(PO4)3 Electrolyte for Solid State Li Metal Batteries International Conference on Energy and Environmental Materials (E2M 2024), held at Indian Institute of Technology Indore, Madhya Pradesh, India (July 2024).


    58. Samriddhi Saxena, Manish Badole, Hari Narayanan Vasavan, Velaga Srihari, Asish Kumar Das, Pratiksha Gami, Neha Dagar, and Sunil Kumar, Electrochemical Behaviour of a P3-type High Na content Cathode for Na-ion Batteries. International Conference on Energy and Environmental Materials (E2M 2024), held at Indian Institute of Technology Indore, Madhya Pradesh, India (July 2024).


    57. Asish Kumar Das, Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Pratiksha Gami, Neha Dagar, and Sunil Kumar, Enhancing room temperature performance of solid-state lithium cell via a facile solid electrolyte-cathode interface design. International Conference on Energy and Environmental Materials (E2M 2024), held at Indian Institute of Technology Indore, Madhya Pradesh, India (July 2024).


    56. Hari Narayanan Vasavan, Manish Badole, Samriddhi Saxena, Asish Kumar Das, Pratiksha Gami, Sunil Kumar, Impact of P3/P2 Mixed Phase on the Structural and Electrochemical Performance of Na0.75Mn0.75Al0.25O2 Cathode. 2nd International Meeting on Energy Storage Devices (IMESD 2023), held at Indian Institute of Technology Roorkee, uttarakhand, India (December 2023) (Best Poster Award).


    55. Pratiksha Gami, Hari Narayanan Vasavan, Manish Badole, Asish Kumar Das, Samriddhi Saxena, and Sunil Kumar, Y-doped LZP-in-PVDF-HFP Composite Electrolyte for Li Batteries. 2nd International Meeting on Energy Storage Devices (IMESD 2023), held at Indian Institute of Technology Roorkee, uttarakhand, India (December 2023).


    54. Sunil Kumar, Hari Vasavan, Samriddhi Saxena, Layered Oxide Cathodes for Sodium-ion Batteries, 2nd International Meeting on Energy Storage Devices (IMESD 2023), held at Indian Institute of Technology Roorkee, uttarakhand, India (December 2023).


    53. Samriddhi Saxena, Hari Narayanan Vasavan, Velaga Srihari, and Sunil Kumar, Unveiling the Influence of Optimal P2/O3 Phase Fraction on Cyclability and Specific Capacity of Layered Oxide Cathodes. 2nd International Meeting on Energy Storage Devices (IMESD 2023), held at Indian Institute of Technology Roorkee, uttarakhand, India (December 2023).


    52. Asish Kumar Das, Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Pratiksha Gami, and Sunil Kumar, Tailoring PEO-based Ceramic-Polymer Composite Electrolytes for Room Temperature AllSolid-State Lithium Metal Batteries. 2nd International Meeting on Energy Storage Devices (IMESD 2023), held at Indian Institute of Technology Roorkee, uttarakhand, India (December 2023).


    51. Sunil Kumar, Hari Vasavan, Samriddhi Saxena, Layered NaxMeO2 Cathodes for Sodium-ion Batteries, International Conference on Materials for Energy & Sustainable Development (MESD-2023), held at Jawaharlal Nehru University, New Delhi, India (October 2023).


    50. Manish Badole, Impact of grain morphology on the properties of KBT ceramics, 2ndIn-house Symposium on Progress in Metallurgy and Materials (ISPMM-2023), held at Indian Institute of Technology Indore, Madhya Pradesh, India (September 2023) (Best Oral Presentation Award).


    49. Sunil Kumar, All Solid State Batteries (Basic to Advanced), Karyashala and Hands-on Training on Energy Materials: Synthesis, Characterization, and Device Fabrication, held at Indian Institute of Technology Indore, Madhya Pradesh, India (July 2023).


    48. Sunil Kumar, Solid State Rechargeable Batteries, High-End Workshop (KARYASHALA) on Next-Generation Energy Storage Materials, held at Indian Institute of Technology Indore, Madhya Pradesh, India (July 2023).


    47. Sunil Kumar, A Brief Commentary on Batteries, In-house Symposium on Progress in Metallurgy and Materials (ISPMM-2023), held at Indian Institute of Technology Indore, Madhya Pradesh, India (February 2023).


    46. Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Asish Kumar Das, and Sunil Kumar, Tremendous Enhancement of Piezoelectric Voltage Coefficient in [00l] Textured K0.5Bi0.5TiO3 Ceramics, International Conference in Asia – 2022 (IUMRS-ICA 2022), IIT Jodhpur, Rajasthan, India (December 2022) (Best Poster Award).


    45. Samriddhi Saxena, Hari Narayanan Vasavan, Manish Badole, Asish Kumar Das, Sunil Kumar, Synthesis Temperature Dependent Structural Evolution and Electrochemical Behaviour of Mn-based Biphasic Layered Oxides for Na+ Batteries. International Conference in Asia – 2022 (IUMRS-ICA 2022), IIT Jodhpur, Rajasthan, India (December 2022).


    44. Hari Narayanan Vasavan, Samriddhi Saxena, Manish Badole, Asish Kumar Das, Sunil Kumar, Enhanced Rate Performance and Specific Capacity in Ti-Substituted P2-Type Layered Oxide Through Structural Modifications. International Conference in Asia – 2022 (IUMRS-ICA 2022), IIT Jodhpur, Rajasthan, India (December 2022).


    43. Asish Kumar Das,, Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Sunil Kumar, Fabrication and Characterisation of P(VDF-HFP) based Composite Electrolyte. International Conference in Asia – 2022 (IUMRS-ICA 2022), IIT Jodhpur, Rajasthan, India (December 2022).


    42. Sunil Kumar, Fabrication of Lead-Free Textured Piezoceramics via Templated Grain Growth, International Conference in Asia (IUMRS-ICA 2022), held at Indian Institute of Technology Jodhpur, Rajasthan, India (December 2022).


    41. Samriddhi Saxena, Hari Narayanan Vasavan, Manish Badole, Asish Kumar Das, Sunil Kumar, Tailored P2-O3 Phase Dependent Electrochemical Behaviour of Mn-based Layered Oxide Cathodes for Sodium-Ion Batteries. International Conference on Frontiers in Materials Engineering (ICFME-2022), IIT Indore, Madhya Pradesh, India (December 2022) (Best Poster Award).


    40. Hari Narayanan Vasavan, Samriddhi Saxena, Manish Badole, Asish Kumar Das, Sunil Kumar, Structural and Transport Properties of P2-Type Na0.70Ni0.20Cu0.15Mn0.65O2 Layered Oxide. International Conference on Frontiers in Materials Engineering (ICFME-2022), IIT Indore, Madhya Pradesh, India (December 2022).


    39. Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Asish Kumar Das, and Sunil Kumar, Importance of Salts Selection in Fabrication of K0.5Bi0.5TiO3 Ceramics via Molten Salt Synthesis. International Conference on Frontiers in Materials Engineering (ICFME-2022), IIT Indore, Madhya Pradesh, India (December 2022).


    38. Asish Kumar Das,, Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Sunil Kumar, Fabrication and Characterisation of P(VDF-HFP) based Composite Electrolyte. International Conference on Frontiers in Materials Engineering (ICFME-2022), IIT Indore, Madhya Pradesh, India (December 2022).


    37. Sunil Kumar, An Introduction to Batteries, Recent Development in Energy Materials for Sustainable Future, ATAL-AICTE Faculty Development Program, Indian Institute of Technology Indore, Madhya Pradesh, India (December 2022).


    36. Manish Badole, Sushmita Dwivedi, Hari Narayanan Vasavan, Sunil Kumar, Poling Effect on Electrical Properties of KBT based Piezoceramic. 65th DAE Solid State Physics Symposium (DAE-SSPS 2021), DAE Convention Centre, Anushaktinagar, Mumbai (December 2021).


    35. Hari Narayanan Vasavan, Manish Badole, Sushmita Dwivedi, Sunil Kumar, Synthesis and Transport Properties of P2-type Na0.78Cu0.22Fe0.11Mn0.67O2 Layered Oxide 65th DAE Solid State Physics Symposium (DAE-SSPS 2021), DAE Convention Centre, Anushaktinagar, Mumbai (December 2021).


    34. Sushmita Dwivedi, Manish Badole, Tanvi Pareek, Sunil Kumar, Understanding the Structure-Property Relation in La/Sc co-Doped KNN Ceramics. IEEE International Symposium on Applications of Ferroelectric (ISAF 2021) joint conference held fully virtual (May 2021).


    33. Manish Badole, Sushmita Dwivedi, Tanvi Pareek, Sunil Kumar, Revealing the Structural, Dielectric and Piezoelectric Properties of Lead-Free (1-x)(K0.5Bi0.5TiO3-xBiAlO3 Solid Solution. IEEE International Symposium on Applications of Ferroelectric (ISAF 2021) joint conference held fully virtual (May 2021).


    32. Manish Badole, Sushmita Dwivedi, Tanvi Pareek, Shadab Ali Ahmad, Sunil Kumar, Elucidating the Conduction Behavior in KBT Ceramic. 64th DAE Solid State Physics Symposium (DAE-SSPS 2019), Indian Institute of Technology Jodhpur, Rajasthan, India (December 2019).


    31. Sushmita Dwivedi, Tanvi Pareek, Manish Badole, Shadab Ali Ahmad, Sunil Kumar, A Study on the Structure, Dielectric and Piezoelectric Properties of BaAl0.5Nb0.5O3 Modified K0.5Na0.5NbO3 Ceramics. 64th DAE Solid State Physics Symposium (DAE-SSPS 2019), Indian Institute of Technology Jodhpur, Rajasthan, India (December 2019).


    30. Shadab Ali Ahmad, Tanvi Pareek, Sushmita Dwivedi, Manish Badole, Sunil Kumar, Fast Li+ Conduction in (PEO+LiClO4) Incorporated LiSn2(PO4)3 Polymer-in-Ceramic Solid Electrolyte. 64th DAE Solid State Physics Symposium (DAE-SSPS 2019), Indian Institute of Technology Jodhpur, Rajasthan, India (December 2019).


    29. Sunil Kumar, An Introduction to Electron Microscopy, TEQIP III, Indian Institute of Technology Indore, Madhya Pradesh, India (March 2019).


    28. Tanvi Pareek, Sushmita Dwivedi, Sunil Kumar, Structural and Electrical Properties of Spinel Al3+ Doped Li4Ti5O12. National Conference on Physics and Chemistry of Materials , Indore, India (December 2018).


    27. Anita Verma, Arun Kumar Yadav, Nasima Khatun, Sunil Kumar, Somaditya Sen, A Study of Low Frequency Dielectric Dispersion of Lead-Free 0.94(Na0.50Bi0.50)Ti0.95V0.05O3-0.06BaTiO3 Ceramics. National Conference on Physics and Chemistry of Materials, Indore, India (December 2018).


    26. Arun Kumar Yadav, Anita Verma, Sunil Kumar, Somaditya Sen, Sol-gel Synthesis and Impedance Studies of Perovskite Pb(1-x)(Na0.5Sm0.5)xTiO3 Ceramics. National Conference on Physics and Chemistry of Materials, Indore, India (December 2018).


    25. Sushmita Dwivedi, Tanvi Pareek, Arun K. Yada, Anita, Sunil Kumar, Structural and Electrical Properties of KNN based Lead-Free Piezoceramics, The International Symposium on Integrated Functionalities (ISIF - 2017), New Delhi, India (December 2017).


    24. Anita Verma, Arun Kumar Yadav, Khatun, Sunil Kumar, A.K. Sinha, Somaditya Sen, Structural, Dielectric and Ferroelectric Properties of Lead-Free Piezoelectric 0.90(Na0.50Bi0.50)TiO3-0.10AgNbO3 Ceramics. The International Symposium on Integrated Functionalities (ISIF - 2017), New Delhi, India (December 2017).


    23. Arun Kumar Yadav, Anita Verma, Sunil Kumar, Velaga Srihari, Somaditya Sen, Structural and Ferroelectric Property of (1-x)PbTiO3-(x)LaAlO3 Ceramics. The International Symposium on Integrated Functionalities (ISIF - 2017), New Delhi, India (December 2017).


    22. Anita Verma, Arun Kumar Yadav, Sunil Kumar, Velaga Srihari, Somaditya Sen, Effect of Grain Size on Dielectric Property of Na0.47Bi0.47Ba0.06TiO3. The International Symposium on Integrated Functionalities (ISIF - 2017), New Delhi, India (December 2017).


    21. Tanvi Pareek, Birender Singh, Sushmita Dwivedi, Arun K. Yadav, Anita, Pradeep Kumar, Somaditya Sen, Sunil Kumar, Sol-gel Synthesis and Characterization of Al3+ Modified LiZr2(PO4)3. International Workshop on Advanced Nanoscience and Engineering, IIT Indore, India (2017).


    20. Arun Kumar Yadav, Anita Verma, Sunil Kumar, Somaditya Sen, Structure, Dielectric and Ferroelectric Properties of K/Sm Modified Perovskite PbTiO3. International Workshop on Advanced Nanoscience and Engineering, IIT Indore, India (2017).


    19. Sushmita Dwivedi, Synthesis and Characterization of K0.5Na0.5NbO3 Based Piezoceramics. International Workshop on Advanced Nanoscience and Engineering, IIT Indore, India (2017) (Best Poster Award).


    18. Milind Kumar, Arun Kumar Yadav, Anita, Somaditya Sen, Sunil Kumar, Effect of Calcination Temperature on Phase Formation of LiZr2(PO4)3. International Workshop on Advanced Nanoscience and Engineering, IIT Indore, India (2017).


    17. Anita Verma, Arun Kumar Yadav, Nasima Khatun, Sunil Kumar, Somaditya Sen, Study of Structural, Dielectric and Ferroelectric Properties of Lead-Free Piezoelectric (Na0.5-xKxBi0.5-xLaxTi)O3 Ceramics. International Workshop on Advanced Nanoscience and Engineering, IIT Indore, India (2017).


    16. Milind Kumar, Arun Kumar Yadav, Anita, Somaditya Sen and Sunil Kumar, Lithium Ion Conduction In Sol-Gel Synthesized LiZr2(PO4)3 Polymorphs. 62nd DAE Solid State Physics Symposium (DAE-SSPS 2017).


    15. Anita Verma, Arun Kumar Yadav, Sunil Kumar, Somaditya Sen, Lead Free Dielectric Ceramic with Stable Relative Permittivity of 0.90Na0.5Bi0.5TiO3-0.10AgNbO3. 62nd DAE Solid State Physics Symposium (DAE-SSPS 2017). (Best Poster Award)


    14. Deepu Kumar, Birender Singh, Sunil Kumar, Pradeep Kumar, Phonon dynamics in LiZr1.9Al0.1(PO4)3: A temperature dependent Raman Study. 62nd DAE Solid State Physics Symposium (DAE-SSPS 2017).


    13. Arun Kumar Yadav, Anita, Sunil Kumar, Somaditya Sen, Structural and Ferroelectric Properties of Perovskite Pb(1-x)(K0.5Sm0.5)xTiO3 Ceramics. 9th International Conference on Materials for Advanced Technologies (ICMAT 2017), Singapore (June 2017).


    12. Tulika Srivastava, Gaurav Bajpai1, Sunil Kumar, Parasharam Shirage, Somaditya Sen, Effect of Si Doping on Optical & Electrical Property of ZnO. Photonics 2016, IIT Kanpur (December 2016).


    11. Sunil Kumar, Arun Yadav, Parasharam M. Shirage, Somaditya Sen, Synthesis and Electrical Properties of Li[Ni1/3Mn1/3Co1/3]O2. 61st DAE Solid State Physics Symposium (DAE-SSPS 2016).


    10. Anita Verma, Arun K. Yadav, Sunil Kumar, Parasharam M. Shirage, Somaditya Sen, Influence of V5+ Doping on Structure, Microstructure and Electrical Properties of 0.94(Na0.5Bi0.5TiO3)-0.06(BaTiO3) Lead-Free Ceramics. International Conference on Technologically Advanced Materials and Asian Meeting on Ferroelectricity (ICTAM & AMF10), New Delhi (India) 2016.


    9. Arun Kumar Yadav, Anita, Sunil Kumar, Parasharam M. Shirage, Somaditya Sen, Structural and Dielectric properties of A-site Modified Perovskite Pb(1-x)(Na0.5Sm0.5)xTiO3. International Conference on Technologically Advanced Materials and Asian Meeting on Ferroelectricity (ICTAM & AMF10), New Delhi (India) 2016.


    8. Sunil Kumar, Structure-Property Correlation in Electroceramics: Ferroelectrics and Solid Electrolyte Membrane. Indian Institute of Science Education and Research (IISER), Mohali (September 2015).


    7. Sunil Kumar, Vishwanathan Ramar, Desapogu Rajesh and Palani Balaya, Influence of Aliovalent Substitution on Structure and Ionic-transport in Nasicon-type LiZr2(PO4)3. International Conference on Materials for Advanced Technologies (ICMAT-2015), Suntec City, Singapore (July 2015).


    6. Sunil Kumar, D. A. Ochoa, J. E. Garcia and K. B. R. Varma, SrNaBi2Nb3O12: New Lead-Free Relaxor Ferroelectric. International Conference and Workshop on Nanostructured Ceramics and other Nanomaterials (ICWNCN-2012), New Delhi, India (March 2012).


    5. Sunil Kumar, D. A. Ochoa, J. E. Garcia and K. B. R. Varma, Nonlinear Dielectric Response of BaBi4Ti4O15 Ceramics. 57th DAE Solid State Physics Symposium (DAE-SSPS 2012), Mumbai (December 2012).


    4. Sunil Kumar and K. B. R. Varma, Structural, Dielectric and Ferroelectric Properties of a New Four-Layer Aurivillius Phase Na0.5La0.5Bi4Ti4O15. International Conference on Electroceramics (ICE-2009), New Delhi, India (December 2009).


    3. Sunil Kumar and K. B. R. Varma, Influence of A-site Modification on the Dielectric, Ferroelectric and Relaxor Behavior of Lead-Free BaBi4Ti4O15 Ceramics. International Conference on Materials for Advanced Technologies (ICMAT-2009), Suntec City, Singapore (July 2009).


    2. Sunil Kumar, Koushik Majhi, Shriprakash Badi and K. B. R. Varma, Giant Dielectric Constant and Dielectric Relaxation in Sr2SbMnO6 Ceramics. National Seminar on Electroceramic (NSE-2007), Sonepat, Haryana, India (November 2007).


    1. Sunil Kumar, BaBi4Ti4O15: A Relaxor Ferroelectric, Chemical Sciences Day, Indian Institute of Science Bangalore, India (March 2010).