Gupta, Vipin Kumar, Raj Kumar, and Upendra Kumar. "Unraveling the multifunctional capabilities of MnCoSb half-Heusler alloy: A computational exploration of structural, mechanical, optical, and thermoelectric properties." Journal of Physics and Chemistry of Solids (2025): 113071.

Joshi, Gaurav, Hira Ilyas, Sudha Tomar, Shivam Kumar Miglani, Yogesh Kumar, Upendra Kumar, and D. S. Raghav. "Correlating structure, magnetism, and electrical transport in sol-gel processed Nd0. 55Ca0. 45MnO3 manganite." Next Nanotechnology 8 (2025): 100241.

Upendra Kumar, Kumar, S., Singh, A. et al. Phase and structural nanoarchitectonics of Ce-Doped Sr2SnO4 for improved microwave dielectric and electrical properties. Appl. Phys. A 131, 646 (2025). https://doi.org/10.1007/s00339-025-08772-9

Sushil Kumar, Raj Kumar, Vedika Yadav, Satyam Kumar, Marcos Flores Carrasco, Abhishek Singh & Upendra Kumar, "Structural insights, bond-valence analysis, and enhanced microwave dielectric Properties of (Sr1-xNdx)2SnO4 Ruddlesden-Popper oxides", J Mater Sci: Mater Electron 36, 1069 (2025). https://doi.org/10.1007/s10854-025-15178-z

Harshpreet Cheema, Parvej Ahmad Alvi, Jaidev Tanwar, Pallavi Kushwaha, S. N. Jha, Shilpa Tripathi & Upendra Kumar, "Structural, electrical, and magnetic properties of (1-x) ZnFe2O4 - (x) BaTiO3 (x = 0,0.05,0.10,1) system", J Aust Ceram Soc (2025). https://doi.org/10.1007/s41779-025-01219-7.

Singh, Pinki, Nisha Shankhwar, Aditi Nachnani, Prashant Singh, Upendra Kumar, Satyendra Singh, and Chandan Upadhyay. "Advances in relaxation and memory effects of magnetic nanoparticles for biomedical applications." Progress in Materials Science, Volume 155, January 2026, 101521.

Raj Kumar, Vipin Kumar Gupta, Mohit Khosya, Sangeeta Singh & Upendra Kumar, "Comparative computational and experimental insights into the structural, electrical, and biological properties of CeO2 fluorite ceramics", Scientific Reports, (2025) 15:19269.

Maurya, Ram Sundar, Vedika Yadav, Pinki Singh, P. A. Alvi, Satyendra Singh, and Upendra Kumar. "Enhanced Energy Storage and Dielectric Performance in B-site Ce-Substituted BaTiO3: Structural and Optical Insights." Ceramics International (2025).

Chawla, P., Kumar, U. Optimized VO2-TiO2 photoanodes for high-efficiency solid-state dye-sensitized solar cells. J Sol-Gel Sci Technol 115, 188–198 (2025). https://doi.org/10.1007/s10971-025-06803-8

Raj Kumar, Vipin Kumar Gupta, Upendra Kumar, "(Sr1-xCax) 2SnO4 microwave dielectric ceramics with Ruddlesden-Popper structure (x= 0–0.06) for microwave application", Next Materials, Volume 8, July 2025, 100748.

Jangra, Vikas, Harpreet Kaur, Narvdeshwar Kumar, Upendra Kumar, Piyush Kumar Sonkar, and Lal Bahadur Prasad. "Electrochemical determination of antipsychotic drug quetiapine fumarate using hexagonal nickel oxide nanoparticle decorated functionalized multiwalled carbon nanotubes." Electrochimica Acta, Volume 531, 10 August 2025, 146432.

Abhishek Nigam, Shagun Varshney, Samarjit Singh, Upendra Kumar, Nidhi Mishra, S. J. Pawar, "Biosynthesis of Zinc Oxide Nanoparticles Using Ficus racemose Leaf Extract via Microwave Irradiation Route: Characterization and Investigation of Antibacterial Efficacy", Advances in Condensed Matter Physics Volume 2025, Article ID 7996602, 18 pageshttps://doi.org/10.1155/acmp/7996602

Yadav, Jitendra, Anil K. Sharma, Manvendra Kumar, Parasmani Rajput, Shiv P. Patel, Hari P. Bhasker, Upendra Kumar, Punit K. Dhawan, and Dhirendra K. Chaudhary. "Synthesis and Analysis of Temperature-Driven Charge Transport and Dielectric Relaxation in Cs2AgFeCl6 Double Perovskite Single Crystal." Trans. Electr. Electron. Mater. 26, 345–355 (2025). https://doi.org/10.1007/s42341-025-00604-0.

Bhupendra Singh, Gaurav Joshi, Sudha Tomar, D. S. Raghav, Raj Kumar, Upendra Kumar, and Lalit Kumar. "Exploring Structural, Magnetic, and Electric Transport Properties of Sol–Gel Derived Nd0. 65Ca0. 35MnO3." Advances in Condensed Matter Physics 2025, no. 1 (2025): 8318984.

Maurya, Prem Chandra, Abhishek Khare, Shailendra Kumar Singh, Ram Sundar Maurya, Ashok Kumar Singh, Upendra Kumar*, and Amarendra Kumar. "Molecular structure, electronic properties, spectroscopic investigation and nonlinear optical properties of thianaphthene-2-carboxylic acid: A quantum chemical approach." Journal of Molecular Liquids, Volume 420, 15 February 2025, 126847. 

Bijendra Singh, Sandeep Kumar, Km Mansi, Sunder Singh, Upendra Kumar, Manindra Kumar, Anil Kumar, Rohitash Singh, and Deepash Shekhar Saini. "Conductivity and Dielectric Studies of Spark plasma sintered BaZr0. 85Ho0. 10Y0. 025Nd0. 025O3-δ Electrolyte Ceramic for Intermediate Temperature Solid Oxide Fuel Cells." Ceramics International, Volume 51, Issue 7, March 2025, Pages 8719-8733.

Rahul Bhatnagar, Varsha Yadav, Upendra Kumar*, Marcos Flores Carrasco, "Piezoelectric Energy Harvesting: From Fundamentals to Advanced Applications", Energy Technol. 2024, 2401455. (DOI: 10.1002/ente.202401455)

Vedika Yadav, Jai Dev, Pallavi Kushwaha, Upendra Kumar*, Studies of Structural, Impedance, Modulus Spectroscopy, and Magnetic Properties of Cr-Modified SrTiO3 Perovskite Ceramic, Phys. Status Solidi B 2024, 2400426. https://doi.org/10.1002/pssb.202400426 

Raj Kumar, Vedika Yadav, Pinki Singh, Piyush K Sonkar, Upendra Kumar, Satyendra Singh, "Effect of calcination temperature on the structural, microstructure, and electrical properties of CeO2 nanoparticles as a solid electrolyte for IT-SOFC application." Advanced Powder Technology 35, no. 12 (2024): 104710.

Upendra Kumar,* Vedika Yadav, Raj Kumar, and Pinki Singh, Design and Simulation of Circular Dielectric Resonator Antenna and Investigation of Structure, Microstructure, and Dielectric Properties of Mn-Modified Sr2SnO4, Phys. Status Solidi A 2024, 2400523.

Sarita, Anchal, Priya, R.K. Beniwal, M.S. Rulaniy, P.M. Saini, Pooja Yadav, Upendra Kumar, Aakansha, P.A. Alvi , B.L. Choudhary, Development and characterization of superparamagnetic Zn-Doped Nickel ferrite nanoparticles, Journal of Magnetism and Magnetic Materials 610 (2024) 172547.

V. Yadav, U. Kumar, Study of the Structure, Microstructure, and Electrical Properties of Defect-Induced Ce-Doped SrTiO3 as Solid Electrolyte in IT-SOFC Application. Journal of Electronic Materials (2024) 53: 6872–6892. https://doi.org/10.1007/s11664-024-11392-3

V. Yadav, R. Bhatnagar, U. Kumar, Innovative computational techniques for DSSCs using machine learning: a review. Discov Electron 1, 17 (2024). https://doi.org/10.1007/s44291-024-00022-1

Manisha Jatiya, Vedika Yadav, Abhishek Kumar Singh, and Upendra Kumar. "Role of charge-compensation process on the structural, microstructure and electrical properties of pure and Nb-doped Sr2SnO4." Nano Express 5, no. 2 (2024): 025014.

Bijendra Singh, Sandeep Kumar, Sunder Singh, Upendra Kumar, Manindra Kumar, Anil Kumar, and Deepash Shekhar Saini. Electron density distribution using maximum entropy method and conductivity studies of BaZr0.85Ho0.10Y0.025Nd0.025O3-δ electrolyte ceramic for intermediate temperature solid oxide fuel cells. Ionics 30, 5495–5512 (2024). https://doi.org/10.1007/s11581-024-05677-0

Mandakini Gupta, Angesh Kumar Maurya, Vikas Jangra, Anamika Pandey, Piyush Kumar Sonkar, Upendra Kumar, "Carbon nanotubes immobilized copper (salen) nanocomposite for electrochemical oxygen evolution reaction", Indian Journal of Chemistry Vol. 63, January 2024, pp. 40-48 DOI: 10.56042/ijc.v63i1.2312 

Varsha Yadav, Rahul Bhatnagar, and Upendra Kumar, "Enhancement in the Electrocatalytic and Optoelectronic Performance of Cost-Effective Counter Electrode VO2 for Dye-Sensitized Solar Cell (DSSC)",Advances in Condensed Matter Physics, vol. 2024, Article ID 6613380, 13 pages, 2024. https://doi.org/10.1155/2024/6613380  

Manisha Jatiya,   Vedika Yadav,   Upendra Kumar,   Abhishek Kumar Singh  and  Shalu Katariya, "Structural, Microstructure, Dielectric relaxation and AC conduction studies of perovskite SrSnO3 and Ruddlesden Popper oxide Sr2SnO4"Phys. Chem. Chem. Phys., 2024, Accepted Manuscript, https://doi.org/10.1039/D3CP05781J 

Yadav V, Cheema H, Alvi PA, Dev J, Kushwaha P, Kumar U. Structural, microstructure, spectroscopic, and magnetic investigation of vanadium-doped SrTiO3 perovskite ceramics. J Am Ceram Soc. 2024;1–21. https://doi.org/10.1111/jace.1965 

Minakshi Sharma; Chandra Mohan Singh Negi; parvej ahmad alvi; Varsha Yadav; Upendra Kumar, "Carbon nanomaterial-based composites as an active layer for optoelectronic device application: A comparative study", J Mater Sci: Mater Electron 34, 2148 (2023). https://doi.org/10.1007/s10854-023-11529-w

Varun Bali, Yugal Khajuria, Vidit Manyar, Pradeep K Rai, Upendra Kumar, Charles Ghany, Shipra Tripathi, Vivek K Singh, "Elemental studies and mapping of cholesterol and pigment gallstones using scanning electron microscopy–energy dispersive spectroscopy." X‐Ray Spectrometry.

Ram Sundar Maurya, Vedika Yadav, Harshpreet Cheema, Minakshi Sharma, PA Alvi, Satyam Kumar, Piyush Kumar Sonkar, Upendra Kumar, "Synthesis and investigation of structural, morphological and dielectric properties of Ba‐ordered BaTiO3 perovskite oxide." Energy Storage: e519.

Sandhyala Naga Sai Srinivas, Minakshi Sharma, Varsha Yadav, Upendra Kumar, "Comprehensive study of CsGeBr3 perovskite: optical, electronic, and thermoelectric properties",emergent mater. 6, 1685–1696 (2023). https://doi.org/10.1007/s42247-023-00553-5 .

H Abassi, U Kumar, A Timoumi, N Bouguila, N Amdouni, H Bouchriha, "Effect of frequency on activation energy and its role in producing piezoelectricity for Ruddlesden Popper oxide Ba2SnO4", Materials Chemistry and Physics, 309, 128338.

Bali, Varun, Yugal Khajuria, Pradeep K. Rai, Vidit Maniyar, Upendra Kumar, and Vivek K. Singh. "Microstructural Studies and Elemental Imaging of Renal Stones by Scanning Electron Microscopy–Energy-Dispersive X-ray Spectroscopy." Brazilian Journal of Physics 53, no. 5 (2023): 120.

Upendra Kumar, and Manisha Jatiya. "Structural and Electrical Properties of Perovskite SrSnO 3 and Ruddlesden Popper Oxide Sr 2 SnO 4: A Comparative Study." (2023).

Varun Bali, Yugal Khajuria, Vidit Maniyar, Pradeep K. Rai, Upendra Kumar, Charles Ghany, M. A. Gondal, and Vivek K. Singh. "Quantitative analysis of human hairs and nails." Biophysical Reviews (2023): 1-17.

Upendra Kumar, Manisha Jatiya, and Marcos Flores Carrasco. "Scaling studies of temperature dependence of electric conductivity and electric modulus spectra of solid solution Sr2-xLaxSnO4 (x≤ 0.10) Ruddlesden Popper Oxide." Materials Research Bulletin (2023): 112221.

VarunBali, Yugal Khajuria, Ashok K. Pathak, Upendra Kumar, Pradeep K. Rai, Charles Ghany, and Vivek K. Singh. "Elemental concentration in renal stones by wavelength dispersive X‐ray fluorescence spectrometry." X‐Ray Spectrometry, 2023.

Arya, Kumar, A., Yadav, V., Bhaskar, H. P., Kumar, S., Kumar, S., & Kumar, U. (2022). An Ab Initio Analysis of Structural, optical, Electronic, and Thermal Properties of Cubic SrSnO3 using Wein2k. East European Journal of Physics, (4), 164-170. https://doi.org/10.26565/2312-4334-2022-4-16 

Aditya Kumar , Manoj K Singh , Minakshi Sharma & Upendra Kumar* , Structural, Dielectric and Electrical Properties of Homovalent Doped SrSn1-xTixO3 (0 ≤ x ≤ 0.08) System , Indian Journal of Pure & Applied Physics, Vol. 60, November 2022, pp. 909-913. DOI: https://doi.org/10.56042/ijpap.v60i11.65819   

Vedika Yadav, Harshpreet Cheema, Ram Sunder Maurya, Satyam Kumar, P. A. Alvi, Minakshi Sharma & Upendra Kumar, "Study of structural, optical, dielectric, and electric properties of homovalently substituted Ce in SrTiO3 perovskite oxide", Ionics volume 28, pages5513–5524 (2022). https://doi.org/10.1007/s11581-022-04782-2 

Varun Bali, Yugal Khajuria, Jitendra Sharma, Pradeep K. Rai, M. A. Gondal, Upendra Kumar, and Vivek K. Singh. "Compositional and morphological studies of kidney and gallbladder stones from fundamentals to advanced level using SEM–EDS technique: a short review." Arabian Journal for Science and Engineering 48, no. 1 (2023): 13-29.

Sushil Kumar, Satyam kumar, Upendra Kumar, Sunil Kumar, Pawan Kumar, and Narinder Verma, "Analysis of Correlation based Threshold Networks of Dow Jones stocks of USA: An Econophysics Approach", Journal of Engineering Science and Technology Review 15 (2) (2022) 198 - 207.

S.B. Dangi, S.Z. Hashmi, Upendra Kumar, B.L. Choudhary, A.E. Kuznetsov, Saurabh Dalela, Shalendra Kumar, S.N. Dolia, Sudhish Kumar, Balsam F.I. Sofi, Reem Darwesh, P.M.Z. Hasan, P.A. Alvi, "Exploration of spectroscopic, surface morphological, structural, electrical, optical and mechanical properties of biocompatible PVA-GO PNCs", Diamond and Related Materials, Volume 127, 2022, 109158, ISSN 0925-9635, https://doi.org/10.1016/j.diamond.2022.109158.

B. L. Choudhary, Upendra Kumar, A. M. Quraishi, P. M. Z. Hasan, Reem Darwesh, Sudhish Kumar, S. Dalela, Shalendra Kumar, S. N. Dolia, P. A. Alvi, "Oxygen vacancy induced structural and domain size-controlled magnetic behavior of La0.67Ca0.33MnO3 perovskite.", J Mater Sci: Mater Electron 33, 6829–6841 (2022).. 

Dharmendra Yadav, Gurudeo Nirala, Sushma Yadav, Upendra Kumar*, Shail Upadhyay, Satyam Kumar, "Study of structural, microstructure, impedance and DC conductivity of Gd-doped SrCeO3 ceramics", Applied Physics A (2021) 127:964.

M. Abu-Samak, Upendra Kumar*, Rajneesh Kumar, Shalendra Kumar, S. Dalela, M. Ayaz Ahmad, B. L. Choudhary, P. A. Alvi, "RIXS, XES and XAS studies for electronic structure of rare earth and alkaline earth modified manganite", Physica B: Condensed Matter, Volume 628, 2022, 413562. https://doi.org/10.1016/j.physb.2021.413562.

Bushra Khan, Manoj K. Singh, Aditya Kumar, Arushi Pandey, Sushmita Dwivedi, Upendra Kumar, Surbhi Ramawat, Sumit Kukreti, Ambesh Dixit, Somnath C Roy, "Multiferroic, Optical and Magneto-dielectric Properties with Enhanced Magneto-Impedance Characteristic of KBiFe2O5" Journal of Alloys and Compounds (2021), 162225

Syed Firoz Haider, Upendra Kumar, Sandhya Kattayat, Smitha Josey, M.Ayaz Ahmad, Saral K. Gupta, Rakesh Sharma, Mohammed Ezzeldien, P.A.Alvi, "Investigation of high optical gain (MIR region) in AlSb/InAs/GaAsSb Type-IIquantum well heterostructure", Results in Optics (2021): 100138. 

Harshpreet Cheema, Vedika Yadav, Ram Sundar Maurya, Varsha Yadav, Aditya Kumar, Nidhi Sharma, Parvej Ahmad Alvi, and Upendra Kumar. "Structural, optical and electrical properties of Mn-doped ZnFe2O4 synthesized using sol-gel method.", J Mater Sci: Mater Electron 32, 23578–23600 (2021). https://doi.org/10.1007/s10854-021-06847-w. 

Upendra Kumar, Ram Sundar Maurya, Harshpreet Cheema, Vedika Yadav, Aditya Kumar, and P. A. Alvi. "Influence of La doping on structure, AC conductivity and impedance spectroscopy of Ba2SnO4 Ruddlesden Popper oxide." , Materials Chemistry and Physics (2021): 274, 125186. 

Bushra Khan,  Aditya Kumar, Preeti Yadav, Gulab Singh, Upendra Kumar, Ashok Kumar & Manoj K. Singh, Structural, dielectric, magnetic and magneto-dielectric properties of (1 − x)BiFeO3–(x)CaTiO3 composites. J Mater Sci: Mater Electron 32, 18012–18027 (2021). https://doi.org/10.1007/s10854-021-06344-0 

Dharmendra Yadav, Gurudeo Nirala, Upendra Kumar, Shail Upadhyay, Investigation on structural and optical properties of system Sr2Ce1-xNaxO4 (0.0 ≤ x ≤ 0.10), J Mater Sci: Mater Electron 32, 8064–8080 (2021). 

Vimala Dhayal, S. Z. Hashmi, Upendra Kumar, B. L. Choudhary, Saurabh Dalela, S. N. Dolia, P. A. Alvi, Optical and electrical properties of biocompatible and novel (CS-GO) polymer nanocomposites, Opt Quant Electron 53, 53 (2021).

Upendra Kumar, Shail Upadhyay, P. A. Alvi, Study of reaction mechanism, structural, optical and oxygen vacancy-controlled luminescence properties of Eu-modified Sr2SnO4 Ruddlesden Popper oxide, Physica B: Condensed Matter 604 (2021): 412708.  

Manish K Srivastava, Upendra Kumar, Structural and optical properties of α-Fe2O3 nanoparticles realized by simple thermal decomposition route, Phys. Scr. 96 (2021) 015804.

Aditya Kumar, Bushra Khan, Gulab Singh, Manoj K Singh, Upendra Kumar, Structural, optical and electrical properties of CaSnO3 and Ca0.98Nd0.02Sn0.98Ti0.02O3 synthesized using Sol-Gel method, Adv. Mater. Lett., 2021, 12 (3), 21031611.

Aditya Kumar, Bushra Khan, Gulab Singh, Ambesh Dixit, Upendra Kumar, Manoj K Singh , Structural, microstructure, optical, and electrical properties of Ti-doped CaSnO3 prepared by Sol-Gel chemical route, Phys. Scr. 95 (2020) 105807. 

 Harshpreet Cheema, Satyam Kumar, Parvej Ahmad Alvi, Banwari Lal Choudhary and Upendra Kumar, Study of Structural, Optical, dielectric and DC resistivity of Ni- modified ZnFe2O4 synthesized by sol-gel combustion method, Advanced Powder Technology 31 (2020) 4241–4252.   

Gunjan Sharma, S. Z. Hashmi, Upendra Kumar, Sandhya Kattayat, M. Ayaz Ahmad, Shalendra Kumar, Saurabh Dalela, P.A.Alvi, Optical and electronic characteristics of ITO/NPB/Alq3:DCJTB/Alq3/Ag heterostructure based organic light emitting diode, Optik (2020): 165572. 

Satyam Kumar, Indrasen Ram, Aditya Kumar, Upendra Kumar, Structural, optical and low temperature resistivity of Ca-doped PrMnO3 nanoparticles, Emergent Materials (2020) 3:595–604. 

Aditya Kumar; Bushra Khan; Varsha Yadav; Ambesh Dixit; Upendra Kumar; Manoj Kumar Singh, Rietveld refinement, optical, dielectric and ac conductivity studies of Ba-doped SrSnO3 , Journal of Materials Science: Materials in Electronics (2020) 31:16838–16848. 

Vimala Dhayal, Sonia Zeba Hashmi, Upendra Kumar, B L Choudhary, A E Kuznetsov, Saurabh Dalela, Shalendra Kumar, Savas kaya,  S N Dolia, Parvej Alvi, Spectroscopic studies, molecular structure optimization and investigation of structural and electrical properties of novel and biodegradable Chitosan-GO polymer nanocomposites, J Mater Sci 55, 14829–14847. 

Upendra Kumar, Dharmendra Yadav and Shail Upadhyay, Investigation of structural, optical and magnetic properties of Nd-doped Sr2SnO4 Ruddlesden Popper oxide , J Am Ceram Soc. 2020; 103: 5743–5757 .

Banawari Lal Choudhary, Upendra Kumar, Shalendra Kumar, S N Dolia, Subhas Chander, Sudhish Kumar, Saurabh Dalela, P.A. Alvi ,Irreversible magnetic behavior with Temperature Variation of Ni0.5Co0.5Fe2O4 Nanoparticles ,Journal of Magnetism and Magnetic Materials 507 (2020): 166861.

K K Khichar, Suraj Bhan Dangi, Vimla Upendra Kumar, S. Z. Hashmi, B. L. Choudhary, Shalendra Kumar, P A ALVI, Structural, Optical, FTIR, Raman and Surface Morphological Studies of Ethyl-Cellulose/Graphene Oxide Nanocomposites, Polymer Composites. 2020;41: 2792–2802.

Upendra Kumar, Shail Upadhyay, Structural, Microstructure Optical and Dielectric properties of Sr1.99M0.01SnO4 (M: La, Nd, Eu) Ruddlesden Popper Oxide ,Journal of Materials Science: Materials in Electronics (2020) 31:5721–5730. 

Upendra Kumar, Kumar Ankur, Dharmendra Yadav and Shail Upadhyay, Synthesis and characterization of Ruddlesden-Popper system (Ba1−xSrx)2SnO4 ,Materials Characterization 162 (2020) 110198. 

Vishnu Vijay Kumar, Gurudeo Nirala, Dharmendra Yadav, Upendra Kumar, Shail Upadhyay ,Sucrose-nitrate auto combustion synthesis of Ce0.85Ln0.15Sr0.05O2-δ  (Ln=La  and Gd)  electrolytes for SOFCs: a comparative study of  properties ,Int J Energy Res. 2020; 44: 4652–4663 

Dharmendra Yadav, Upendra Kumar, Gurudeo Nirala, Ashish Kumar Mall, Shail Upadhyay ,Effect of acceptor Na1+ doping on the properties of perovskite SrCeO3 ,J Mater Sci: Mater Electron (2019) 30: 15772 

Upendra Kumar, Shail Upadhyay , Structural, Optical and Electrical properties of Ruddlesden Popper Oxide Ba2SnO4 , Journal of Electronic Materials 48 no. 8(2019): 5279-5293 

Dharmendra Yadav, Upendra Kumar, Shail Upadhyay, Study of structural, electrical and photoluminescent properties of SrCeO3 and Sr2CeO4: a comparative study ,J Adv Ceram 8, 377–388 (2019).

Upendra Kumar, Shail Upadhyay, Investigation of structural, optical and electrical properties of Sr2SnO4, Sr1.99Eu0.01SnO4 and Sr2Sn0. 99Eu0.01O4 Ruddlesden Popper oxide ,Mater. Res. Express 6 (2019) 055805    

Upendra Kumar, Dharmendra Yadav, Anukul K Thakur, Kamal K Srivastav, Shail Upadhyay , Investigation on phase formation of Sr2SnO4 and effect of La-doping on its structural and optical properties, Journal of Thermal Analysis and Calorimetry 135, no. 4 (2019): 1987-1999 

Upendra Kumar, Shail Upadhyay , Studies on dielectric and electrical properties of Ruddlesden-Popper oxide Sr2SnO4 , Materials Letters 227, 100-103 (2018)

Md Jawed Ansaree, Upendra Kumar, Shail Upadhyay , Structural, dielectric and magnetic properties of particulate composites of relaxor (BaTi0.85Sn0.15O3) and ferrite (NiFe2O4) synthesized by gel-combustion method , Journal of Electroceramics, 40(3), 257-269 (2018) 

Upendra Kumar, Md Jawed Ansaree, Atul Kumar Verma, Shail Upadhyay, Govind Gupta , Oxygen vacancy induced electrical conduction and room temperature ferromagnetism in system BaSn1−x NixO3 (0⩽ x⩽ 0.20) , Materials Research Express, 4, 11, 116304 (2017) 

Mandira Majumder, Ram Bilash Choudhary, Anukul K Thakur, Upendra Kumar , Augmented gravimetric and volumetric capacitive performance of rare earth metal oxide (Eu2O3) incorporated polypyrrole for supercapacitor applications , Journal of Electroanalytical Chemistry, 804, 42-52, (2017) 

Mandira Majumder, Ram Bilash Choudhary, Shankar P Koiry, Anukul K Thakur, Upendra Kumar , Gravimetric and volumetric capacitive performance of polyindole/carbon black/MoS2 hybrid electrode material for supercapacitor applications , Electrochimica Acta 248,98-111, (2017) 

Md Jawed Ansaree, Upendra Kumar, Shail Upadhyay , Solid-state synthesis of nano-sized Ba(Ti1−xSnx)O3 powders and dielectric properties of corresponding ceramics , Applied Physics A 123, 6,432 (2017) 

Upendra Kumar, Md Jawed Ansaree, Shail Upadhyay , Structural and optical characterizations of BaSnO3 nano-powder synthesized by aqueous sol-gel method , Processing and Application of Ceramics, 11(3), 177-184

Atul Kumar Verma, Upendra Kumar, Md. Jawed Ansaree and Shail Upadhyay , Low temperature synthesis and characterization of nanocystalline powders of Ni-doped barium stannate system, BaSn1-xNixO3 , Journal of Ceramic Processing Research. Vol. 17, No. 00, pp. 1~8 (2017)  

A COMPACT SOLAR CELL UNIT WITH HARDA FRUIT NATURAL DYE FOR ENHANCED PHOTOVOLTAIC PERFORMANCE, class 13-04, Indian Patent published, Design Granted.

Title of the invention: A SOLID BIOPOLYMER NANOCOMPOSITE ELECTROLYTE AND ITS METHOD OF PREPARATION, Application No.202411088298 A, Indian Patent Published.