Dr. Kriti Ranjan Sahu is a distinguished physicist and academic leader, currently serving as the Head of the Department of Physics and Assistant Professor at Bhatter College, Dantan (Autonomous) in Paschim Medinipur, West Bengal, India. With a strong background in material science, applied physics, and experimental techniques, Dr. Sahu has made pioneering contributions across multiple fields of science including piezoelectric materials, superconductivity, and optical technologies.
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📘 Early Academic Pursuits
Dr. Sahu’s academic journey began in Tickrapara Ambikyamoye High School, culminating in his B.Sc in Physics from P.K. College, Contai under Vidyasagar University in 2002. He pursued his M.Sc in Physics from G.G.D. University, Bilaspur, securing a strong academic footing with 64.39% marks in 2004. He earned his PhD in 2016 from Jadavpur University, working under Prof. Dr. Udayan De (Retd. Senior Scientist at VECC, Kolkata) with a thesis focused on “Study of Some Piezoelectric and Other Oxides and of Their Polymeric Composites for Applications“.
🧑🏫 Professional Endeavors
Dr. Sahu began his teaching career as a Lecturer and HoD in Egra S.S.B. College in 2005, later transitioning to Bhatter College in 2019 as a full-time Assistant Professor and Department Head. With over 19 years of academic service, he is a veteran educator deeply committed to student-centric scientific inquiry and interdisciplinary learning.
🧪 Contributions and Research Focus
Dr. Sahu has spearheaded numerous innovative research projects and groundbreaking discoveries. He developed a novel and safe technique for preparing orthorhombic PbNb₂O₆ piezoelectric material in 2014, widely used in nuclear imaging sensors. In 2020, he reported a surprising ~8°C enhancement in the superconducting transition temperature of Fe-based superconductors due to Ar⁶⁺ ion beam irradiation. In 2022, he invented a new laser-based experimental method for measuring refractive indices in solid materials, suitable for undergraduate laboratories. He also discovered a new natural cellulosic fiber from Cyperus compactus (2023), and synthesized high-quality Na₂O–ZnO–TeO₂ glasses for optical communication (2020–2023).
🌐 Impact and Influence
Dr. Sahu’s work has gained national and international recognition. His cutting-edge research has been published in top-tier journals like Physica C, Carbohydrate Polymer Technologies, Glass Physics and Chemistry, and Journal of Physics and Chemistry of Solids. His findings in superconductivity and piezoelectric materials have laid foundational work for future advancements in sensor technology, nuclear applications, and sustainable electronics.
📚 Academic Cites and Publications
Dr. Sahu has made extensive contributions to peer-reviewed literature with numerous publications across Q1 to Q4 journals. Notably, he reported a remarkable 50% increase in superconducting critical temperature (Tc) due to ion implantation, published in Physica C (2025). His work on the characterization of a new natural cellulosic fiber appeared in Carbohydrate Polymer Technologies (2023). He also introduced a laser-based refractive index measurement technique featured in The Physics Teacher (2022). Additionally, Dr. Sahu has co-authored several papers on glass materials, organic solar cells, and the effects of ion irradiation, showcasing his broad research expertise.
🧠 Research Skills
Dr. Sahu possesses a wide range of research skills encompassing material synthesis, including piezoelectrics, superconductors, EMI shielding composites, and glass materials. He is proficient in advanced characterization techniques such as XRD, UV-Vis spectroscopy, SEM, TEM, FTIR, DSC, DTA, TGA, impedance analysis, and vector network analysis (VNA). His expertise also extends to device fabrication, particularly in creating organic solar cells. Additionally, Dr. Sahu has conducted numerous irradiation experiments using gamma rays and ion beams at renowned facilities like UGC-DAE, IUAC, and SAMEER, reflecting his strong interdisciplinary research capabilities.
👨🏫 Teaching Experience
Dr. Sahu has nearly two decades of teaching experience. He has been instrumental in integrating innovative lab experiments, interdisciplinary research modules, and undergraduate research projects into college curricula. His initiative, BASIS (Bengal Academic Society for Interactive Sciences), has helped UG/PG students showcase poster-based research across colleges.
🏆 Awards and Honors
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🥇 International Research Award (2020) by RULA and World Research Council for outstanding work on piezoelectric spectroscopy.
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📜 Certificate of Publication from Thermochimica Acta for significant findings on Nb₂O₅ phase in PbNb₂O₆ formation.
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🧾 Life Member of Indian Association of Physics Teachers (IAPT).
📝 Editorial Roles and Peer Review
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Associate Editor: Bhatter College Journal of Multidisciplinary Studies, since 2023.
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Editorial Member: International Journal of Materials Science and Applications (USA).
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Reviewer: International Journal of Energy Research, Material Science Research India.
🔬 Legacy and Future Contributions
Dr. Kriti Ranjan Sahu continues to inspire scientific curiosity through poster-based symposiums, interactive webinars, and hands-on experimental training under the umbrella of BASIS. His commitment to low-cost science education, research democratization, and young investigator mentorship ensures a lasting impact on the next generation of physicists and applied researchers. Looking ahead, Dr. Sahu aims to bridge research with industry, focusing on green technologies, high-Tc superconductors, and materials for next-gen optics and electronics.
Top Noted Publications
Superconducting Single Crystals Show About 50% Increase of the Superconducting Critical Temperature after Ar Ion Implantation
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Authors: Sahu, K.R.; Wolf, T.; Mishra, A.K.; Chakraborty, K.R.; Banerjee, A.; Ganesan, V.; De, U.
Journal: SSRN (Other)
Year: 2025
Characterization of new natural cellulosic fibers from Cyperus compactus Retz. (Cyperaceae) Plant
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Authors: Bhunia, A.K.; Mondal, D.; Sahu, K.R.; Mondal, A.K.
Journal: Carbohydrate Polymer Technologies and Applications
Year: 2023
Enhancement of Optical and Electrical Properties of Pr³⁺ Doped Na₂O–ZnO–TeO₂ Glass Materials
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Authors: Mirdda, J.N.; Mukhopadhyay, S.; Sahu, K.R.; Goswami, M.N.
Journal: Glass Physics and Chemistry
Year: 2023
Modification of Optical Bandgap and Formation of Carbonaceous Clusters Due to 1.75 MeV N⁵⁺ Ion Irradiation in PET Polymers and Search for Chemical Reaction Mechanisms
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Authors: Prasad, S.G.; Lal, C.; Sahu, K.R.; De, U.
Journal: Biointerface Research in Applied Chemistry
Year: 2023
Ultrastructural and Spectroscopic Analysis of Lignin of Stone Cells in Mimusops elengi L. (Sapotaceae) Fruit Mesocarp
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Authors: Khatun, M.; Sahu, K.R.; Mondal, A.K.
Journal: Biointerface Research in Applied Chemistry
Year: 2023