Dr. Mariappan R: Professor at Adhiyamaan College of Engineering (Autonomous), India

Title/Designation: Dr.
Name: Mariappan R
Current Role/Designation: Professor
Organization/Institution Details: Adhiyamaan College of Engineering (Autonomous)
Country: India
Subject Track: Physics
Award Categories: Best Researcher Award
Submitted: Aug 18, 2025

Dr. R. Mariappan is a seasoned educator and researcher in the fields of Materials Science, Thin Films, and Nanotechnology. With more than 11 years of teaching experience, he currently serves as an Associate Professor in the Department of Physics at Adhiyamaan College of Engineering, Hosur. Dr. Mariappan’s primary research interests lie in the development and application of nanomaterials, particularly in gas sensors, energy storage devices, and environmental monitoring. He has made substantial contributions to the field through his work on ZnO-based thin films doped with rare earth metals, demonstrating enhanced properties for various technological applications. His extensive publication record, with multiple high-impact journal articles, showcases his expertise in thin-film deposition techniques and material characterization.

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ORCID Profile

Education

Dr. Mariappan’s educational background is deeply rooted in the field of Physics. He earned his Ph.D. from SRMV College of Arts and Science, Bharathiar University, Coimbatore, where his research earned high commendation for its innovative approach to materials science. His M.Phil. and M.Sc. in Physics further solidified his expertise in material synthesis and characterization techniques. He also completed his B.Ed. specializing in Physical Science, as well as his undergraduate studies in Physics, both with top marks. Dr. Mariappan’s academic journey reflects his commitment to excellence and his passion for advancing knowledge in his field.

  • Ph.D. (2014) – Physics, SRMV College of Arts and Science, Bharathiar University, Coimbatore
  • M.Phil. (2009) – Physics, SRMV College of Arts and Science, Bharathiar University, Coimbatore
  • B.Ed. (2008) – Physical Science, Institute of Advanced Study in Education, Madras University, Chennai
  • M.Sc. (2007) – Physics, Presidency College, Madras University, Chennai
  • B.Sc. (2005) – Physics, Thiruvalluvar Govt. Arts College, Periyar University, Salem
Research Focus

Dr. Mariappan’s research is focused on developing advanced materials, specifically thin films and nanoparticles, for energy, sensor, and electronic applications. His work on doped ZnO thin films has led to new methods for enhancing gas-sensing properties, which can be used in applications such as environmental monitoring and industrial safety. In addition to his work on ZnO, his research has expanded to other materials like copper vanadate and lithium zinc phosphate, which have promising applications in energy storage devices such as supercapacitors. His innovative use of various deposition techniques, including spray pyrolysis and electrochemical deposition, demonstrates his commitment to producing high-quality materials with tailored properties for specific applications.

Experience

With over 11 years of academic experience, Dr. Mariappan has a strong background in both teaching and research. He began his career as an Assistant Professor at Adhiyamaan College of Engineering in June 2013 and later became an Associate Professor in June 2023. In addition to his teaching role, Dr. Mariappan has been actively involved in research and has successfully guided several Ph.D. students in their research work, focusing on energy storage materials and gas-sensing technologies. He has also participated in multiple international conferences and workshops, delivering lectures and serving as a resource person. His expertise in both academia and research continues to shape his career and contribute to the broader scientific community.

Research Timeline & Activities

Dr. Mariappan’s research career spans over a decade, during which he has consistently focused on the synthesis, characterization, and application of nanomaterials. His key research activities include:

  • 2014-2016: Principal Investigator for a UGC-funded project that focused on rare earth metals doped zinc oxide thin films for gas sensing applications.
  • 2016-Present: Supervision of multiple Ph.D. students, guiding them through research on materials for supercapacitors, sensors, and energy applications.
  • Conferences & Workshops: Acted as a Resource Person, Invited Speaker, and Conference Chair at numerous national and international conferences, such as ICONMD-23 (2023) on emerging trends in nanomaterials and devices.
  • Research Activities: Dr. Mariappan’s recent work involves advanced deposition methods like nebulizer spray pyrolysis and electrochemical deposition to create high-performance thin films for various applications.
Awards & Honors

Throughout his career, Dr. Mariappan has received several accolades and awards, reflecting his commitment to research excellence. Notable awards include:

  • Highly Commended Ph.D. (2014): For outstanding contributions to materials science during his doctoral research.
  • UGC Minor Research Project Grant (2014-2016): Funded project on rare earth doped ZnO thin films, which contributed to advancements in gas sensor technology.
  • Best Paper Awards: Multiple recognitions at national and international conferences for his research on advanced materials and their applications in sensors and energy devices.
    His work has also been cited by researchers worldwide, solidifying his status as a thought leader in materials science.

Top Noted Publications

Dr. Mariappan has published extensively in reputed journals, contributing significantly to the field of materials science. Some of his top publications include:

1. Recent Development of Low-Cost Nebulizer Sprayed Cd₁₋ₓZnₓO Nanoparticles

  • Journal: Solid State Communications
  • Year: 2022
  • DOI: 10.1016/j.ssc.2021.114544
  • EID: 2-s2.0-85116938606
  • ISSN: 0038-1098
  • Contributors: Amudhavalli, B.; Prasath, M.; Mariappan, R.
  • Summary: This paper investigates the use of nebulizer spray deposition for synthesizing Cd₁₋ₓZnₓO nanoparticles, focusing on their structural, optical, and morphological properties. The study highlights the potential for low-cost fabrication methods in nanomaterials and their application in sensing technologies.

2. Influence of Temperature on Structural, Morphological, Thermal, Optical and Photoluminescence Properties of LaPO₄ Nanoparticles

  • Journal: Optik
  • Year: 2021
  • DOI: 10.1016/j.ijleo.2021.167860
  • EID: 2-s2.0-85114259510
  • ISSN: 0030-4026
  • Contributors: Priya, R.; Mariappan, R.; Jayamurugan, P.; Bakkiyaraj, R.; Ravikumar, K.; Shkir, M.; AlFaify, S.
  • Summary: This research explores how temperature affects the various properties of LaPO₄ nanoparticles, including their structural, morphological, optical, and photoluminescence characteristics. The findings contribute to optimizing the performance of LaPO₄ for optoelectronic applications.

3. Investigation of Structural, Optical and Antibacterial Activity of ZnS Nanoparticles

  • Journal: Journal of Cluster Science
  • Year: 2021
  • DOI: 10.1007/s10876-020-01923-3
  • EID: 2-s2.0-85094832844
  • ISSN: 1572-8862, 1040-7278
  • Contributors: Vijayan, S.; Dash, C.S.; Umadevi, G.; Sundararajan, M.; Mariappan, R.
  • Summary: This study investigates the synthesis and characterization of ZnS nanoparticles and their potential for antibacterial applications. The paper also highlights the impact of the nanoparticles’ structural and optical properties on their effectiveness in antimicrobial treatments.

4. Review on Rare Earth Metals Doped LaPO₄ for Optoelectronic Applications

  • Journal: Solid State Communications
  • Year: 2021
  • DOI: 10.1016/j.ssc.2021.114457
  • EID: 2-s2.0-85113352035
  • ISSN: 0038-1098
  • Contributors: Priya, R.; Mariappan, R.; Karthikeyan, A.; Palani, E.; Krishnamoorthy, E.; Gowrisankar, G.
  • Summary: This review paper discusses the advances in the doping of LaPO₄ with rare earth metals and their application in optoelectronic devices. The paper summarizes the structural, photoluminescence, and optoelectronic properties of these doped materials and their suitability for light-emitting diodes, lasers, and other optoelectronic technologies.

5. Effect of Dopant Concentration on Polyaniline/Poly(4-styrene sulfonic acid) Composite for Ammonia Gas Detection

  • Journal: Polymers and Polymer Composites
  • Year: 2020
  • DOI: 10.1177/0967391119895743
  • EID: 2-s2.0-85077450381
  • ISSN: 1478-2391, 0967-3911
  • Contributors: Jayamurugan, P.; Mariappan, R.; Deivanayaki, S.; Ponnuswamy, V.; Maadeswaran, P.; Chavali, M.; Rao, Y.V.S.
  • Summary: This article investigates the ammonia gas sensing properties of polyaniline/poly(4-styrene sulfonic acid) composites, with a focus on the influence of dopant concentration. The study is aimed at optimizing the composite material for high-performance gas sensors, particularly for ammonia detection in industrial and environmental applications.
Strength for the Best Researcher Award:

Research Excellence in Nanomaterials

Dr. Mariappan’s expertise in nanotechnology is a core strength that positions him as a strong contender for the Best Researcher Award. His innovative work in developing low-cost, highly effective nanomaterials, particularly thin films and nanoparticles, has expanded the potential of nanotechnology for real-world applications. His research focuses on enhancing the properties of materials like ZnO, CdO, and LaPO₄ for applications in gas sensing, energy storage, and environmental monitoring, which have gained recognition in leading scientific journals.

Outstanding Contribution to Materials Science

Dr. Mariappan’s career is marked by substantial contributions to materials science, especially in thin-film deposition techniques and material characterization. His research on the preparation of rare earth doped ZnO thin films and their application in gas sensors and supercapacitors is a testament to his ability to develop high-performance materials. His dedication to enhancing the functionality of materials for modern technological challenges showcases his research prowess and positions him at the forefront of the field.

Significant Impact on Energy Storage and Sensor Technology

Dr. Mariappan’s work on materials for energy storage and sensor technology has not only advanced scientific understanding but also impacted practical technologies. His studies on copper vanadate and lithium zinc phosphate materials for supercapacitors, as well as his pioneering work in the development of high-performance gas sensors, have the potential to shape the future of sustainable energy and environmental monitoring systems. His research consistently explores new materials with improved efficiency, demonstrating a significant impact on both the scientific community and technological industries.

Leadership and Mentorship in Academia

With over 11 years of experience in academia, Dr. Mariappan has guided numerous students and researchers, including Ph.D. candidates, through their academic journeys. His leadership is not limited to teaching but also extends to research guidance, where he provides mentoring in the development of new materials and innovative scientific approaches. His ability to foster the growth of budding researchers and contribute to their professional development strengthens his position as an exceptional educator and researcher.

Recognized for Excellence in Global Research Circles

Dr. Mariappan has earned recognition not only within India but also in international research circles for his innovative work in material science. His multiple high-impact publications in renowned journals, such as Solid State Communications and Journal of Materials Science, have garnered citations globally, influencing ongoing research in nanotechnology. His invitations to deliver lectures at international conferences, along with awards for best papers and ongoing collaborations with top researchers, affirm his global standing as a researcher of excellence.

Mariappan R, Physics, Best Researcher Award