Assoc Prof. Dr.Christian Kenfack Sadem | Condensed Matter Physics | Editorial Board Member

Assoc Prof. Dr.Christian Kenfack Sadem | Condensed Matter Physics | Editorial Board Member

University of Dschang | Cameroon

Christian Kenfack Sadem is an Associate Professor with extensive experience in university teaching, research, postgraduate supervision, and academic leadership. He has held multiple lecturing and visiting lecturer positions across major institutions in Cameroon and has coordinated large undergraduate physics programs while teaching a broad range of courses from general physics to advanced condensed-matter theory. He has supervised numerous master’s and PhD theses in areas spanning quantum systems, exciton–polaron dynamics, black hole physics, and renewable energy. His research contributions focus on polarons, bipolarons, exciton–polaron interactions, graphene, and transition-metal dichalcogenides, with significant findings on laser-controlled quasiparticle behavior, magnetic-field effects, and optical signatures in emerging semiconductors. He has served on academic juries, reviewed scientific works, participated in international research programs, and contributed to conference organization. He is also a recipient of several competitive research fellowships and is an active member of scientific networks. Alongside strong teaching achievements, he has supported student research leading to numerous publications and has additional expertise in scientific programming using Matlab, Fortran, and Python, with experience in climate and numerical modeling

Profiles: Scopus | Orcid  

Featured Publications

Nguepnang, J. V., Donfack, B., Ekengoue, C. M., Mbieda-Posseu, E. L., Ngagoum Tchamdjeu, F. X., Nganfo, W., & Kenfack-Sadem, C. (2025). Magnetocaloric effect and thermodynamic properties of trapped polarons in 2D monolayers transition metal dichalcogenides. Journal of Low Temperature Physics.

Nguepnang, J. V., Kenfack-Sadem, C., Delon, M. M. M., Kamsap, M. R., Kenfack-Jiotsa, A., Vinci De Dieu, B. B., & Zerbo, I. (2025). Transition frequency and dynamic of polaron in transition metal dichalcogenide under radiowave and microwave. Indian Journal of Physics.

Aparicio-Huacarpuma, B. D., Marinho, E., Jr., Giozza, W. F., Silva, A. M. A., Kenfack-Sadem, C., Dias, A. C., & Ribeiro, L. A., Jr. (2025). 2D Janus SnSeS monolayers for solar energy conversion: Insights from DFT and excitonic analysis. Nanoscale.

Kenfack-Sadem, C., Nguepnang, J. V., Nse Biyoghe, S., Addison, N., Bokoyo Barandja, V. D., & Zerbo, I. (2024). Mobility and decoherence of bipolaron in transition metal dichalcogenides pseudodot quantum qubit. Iranian Journal of Science.

Ngoufack, G. D. C., Merad, A. E., Fotue, A. J., & Kenfack-Sadem, C. (2023). First-principle investigation of electronic and optical properties of graphene/h-BN bilayers using Tran–Blaha-modified Becke–Johnson potential. Optical and Quantum Electronics.

Dr. Yi Chen | Energy Storage | Best Researcher Award

Dr. Yi Chen | Energy Storage | Best Researcher Award

North University of China | China

Dr. Yi Chen is a lecturer at the North University of China with a PhD from the Lanzhou Institute of Chemical Physics, CAS, and postdoctoral experience in Instrument Science and Technology. His research focuses on advanced energy storage materials and devices, highlighted by the development of a novel 12V supercapacitor. He has led multiple competitive research projects in micro-supercapacitors, energy-storage performance enhancement, and weak-signal photo-detection devices. His innovations include patented methods for slippery surfaces infused with ionic liquids, triboelectric nanogenerator fabrication, flexible wide-window supercapacitors, and MXene/NiCo₂O₄ composite electrode materials. He has published over ten academic papers in SCI and Scopus-indexed journals covering high-voltage planar supercapacitors, MOF/ionic-liquid synergy, NiCo₂O₄/MXene heterostructures, multi-metal MOF nanorod modulation for flexible devices, triboelectrification mechanisms, ionic-liquid-infused slippery surfaces, and heterojunction-based electrodes. His experimental expertise spans micro supercapacitor design, MOF and MXene composites, triboelectric interfaces, ionic-liquid systems, and energy-storage performance evaluation.

Profiles: Scopus | Orcid

Featured Publications

Chen, Y., Xie, X., Jing, J., Wang, Y., Cui, D., Liu, D., & Xue, C. (2025). High-voltage planar supercapacitors enabled by Mn-MOF and ionic liquid synergy for high energy-density storage. Electrochimica Acta.

Chen, Y., Li, X., Xu, C., Wang, D., Huang, J., Guo, Z., & Liu, W. (2023). Electron transfer dominated triboelectrification at the hydrophobic/slippery substrate water interfaces. Friction.

Chen, Y., Liu, W., Huang, J., & Guo, Z. (2022). Lubricant self-replenishing slippery surface with prolonged service life for fog harvesting. Friction.

Chen, Y., & Guo, Z. (2020). An ionic liquid-infused slippery surface for temperature stability, shear resistance and corrosion resistance. Journal of Materials Chemistry A.

Xue, C., Chen, Y., Li, Y., Chen, H., Cui, D., & Lin, L. (2019). NiCo₂O₄@TiO₂ electrode based on micro-region heterojunctions for high performance supercapacitors. Applied Surface Science.

Dr. Digambar Sapkal | Supercapacitor | Best Researcher Award

Dr. Digambar Sapkal | Supercapacitor | Best Researcher Award

SICES Degree College | India

Dr. Digambar Sapkal is an Assistant Professor and Head of the Department of Physics at S.I.C.E.S. Degree College, Ambarnath (W), and a Member of the Board of Studies (BOS) in Physics at the University of Mumbai. He has extensive teaching experience at the undergraduate and postgraduate levels, having served in institutions such as B.K. Birla College and K. M. Agrawal College, Kalyan. As a recognized Ph.D. guide under the University of Mumbai, he is guiding several research scholars and has supervised multiple M.Sc. projects. Dr. Sapkal has published numerous research papers in national and international journals and has actively participated in various seminars, workshops, and conferences across different academic levels. He has served on several key university and college committees, including BOS, CDC, IQAC, Research Cell, DLLE, NSS, and Grievance Redressal Cell, and has also chaired the University Examination Vigilance Squad. His research interests include high energy physics and supercapacitor studies.

Profile: Scopus 

Featured Publication

Kushwaha, S. D., Magray, T., Bhatia, P. G., Sartale, S., Sapkal, D. M., & Sarawade, P. (2025). Scalable green synthesis of Co₂P₂O₇ nanosheets for high-energy-density asymmetric supercapacitors with exceptional cyclic stability. Journal of Alloys and Compounds.

Prof. Walter Arnold | Material Science | Distinguished Scientist Award

Prof. Walter Arnold | Material Science | Distinguished Scientist Award

Saarland University | Germany

Walter Arnold is a distinguished physicist with a diploma in Physics (1970) and a PhD in Solid State Physics (1974) from the Technical University Munich. He held prominent research positions across France, USA, Switzerland, and Germany, contributing significantly to solid state and applied physics. From 1980 to 2008, he led a department at Fraunhofer IZFP, Saarbrücken, focusing on non-destructive testing and materials characterization. Appointed professor of materials technology at Saarland University in 1989, he supervised over 165 undergraduate and 33 PhD theses and played active roles in international graduate programs and schools. He served on numerous advisory and review committees globally, including the Alexander von Humboldt Foundation and EU research programs, and edited key journals in non-destructive evaluation. W. Arnold fostered Indo-German research collaborations and received the Heisenberg Medal for supporting international scientific cooperation. His prolific output includes ~190 peer-reviewed publications, ~20 reviews, 1 textbook, ~200 conference papers, 12 patents, and significant contributions to applied physics projects, including the Rosetta mission. He has been a guest professor at EPF Lausanne, Oxford University, and Georg-August Universität Göttingen, and continues to work as a researcher and consultant in non-destructive testing, applied physics, and nanotechnology.

Profile:  Scopus | Orcid | Google Scholar

Featured Publications

W Arnold, MM Becker, HH Fischer, B Ibrahim, M Knapmeyer, H Krüger (2025). Complete CASSE acceleration data measured upon landing of Philae on comet 67P at Agilkia. Acta Astronautica

C Ma, W Arnold (2024). Ultrasonic Atomic Force Microscopies in Nanotribology. Fundamentals of Friction and Wear on the Nanoscale, 39-56

W Arnold, K Goebbels, A Kumar (2023). Non-destructive Materials Characterization by Electromagnetic Techniques. Non-destructive Materials Characterization and Evaluation, 239-311

W Arnold, K Goebbels, A Kumar (2023). Non-destructive Materials Characterization using Ionizing Radiation. Non-destructive Materials Characterization and Evaluation, 135-238

A Kumar, W Arnold (2022).High resolution in non-destructive testing: A review. Journal of Applied Physics 132 (10)

Prof. Haiyan Leng | Hydrogen Storage Materials | Best Researcher Award

Prof. Haiyan Leng | Hydrogen Storage Materials | Best Researcher Award

Shanghai University | China

Prof. Haiyan Leng, a professor and doctoral supervisor at Shanghai University, specializes in lightweight hydrogen storage materials and high-capacity hydrogen storage device design. She has led and participated in multiple national and enterprise-funded projects, published over 70 SCI papers in top journals, and holds more than ten domestic and international patents. Her recent highly cited work in the Journal of Rare Earths investigates the influence of La and Ce rare earth doping on the hydrogen absorption properties of Zr7V5Fe alloy. The study revealed that rare earth doping enhances activation with shorter incubation periods and improves the transition of Zr and V from oxidized to metallic states during heating, leading to better hydrogen absorption performance. X-ray diffraction showed reduced cell volume of ZrV2 and α-Zr phases, raising plateau pressure, while kinetic analysis indicated coarser α-Zr phases and larger particle sizes, slightly reducing hydrogen absorption kinetics. Overall, the research provides valuable technical guidance for optimizing zirconium-based alloys for hydrogen storage applications.

Profile:  Scopus 

Featured Publications

"Influence of rare earth doping on hydrogen absorption properties of Zr7V5Fe alloy"

"Multivalent Ti/Nb catalysts with oxygen vacancies: Bridging electron transfer pathways to enhance MgH2 hydrogen desorption property"

"Effect of La doping on tritium storage properties of Ti-based alloys"

"The relationship between thermal management methods and hydrogen storage performance of the metal hydride tank"

"Performance improvement of magnesium-based hydrogen storage tanks by using carbon nanotubes addition and finned heat exchanger: Numerical simulation and experimental verification"

Xiaolan Xue | Experimental methods | Best Researcher Award

Dr. Xiaolan Xue | Experimental methods | Best Researcher Award

Lecturer at China University of Mining and Technology, China

Dr. Xiaolan Xue is a dedicated materials scientist whose research significantly advances the field of electrochemical energy storage, particularly multivalent ion batteries. She earned her Ph.D. in Chemistry from Nanjing University in 2020 under the mentorship of Prof. Zhong Jin. Currently, she is a researcher at the School of Materials Science and Physics, China University of Mining and Technology. Her work centers around designing innovative functional materials for high-performance rechargeable batteries, focusing on magnesium-ion systems. Dr. Xue has published over 20 peer-reviewed articles in high-impact journals such as Advanced Functional Materials, ACS Nano, and Nano Letters. Her research integrates material design, redox chemistry, and interface engineering. She is also a frequent collaborator on multidisciplinary projects, showcasing her strong leadership and team science capabilities. Dr. Xue continues to push the boundaries of sustainable energy research, contributing both foundational knowledge and practical advancements in next-generation energy storage technologies.

Author Profile

Scopus | ORCID

Education

Dr. Xiaolan Xue obtained her Ph.D. in Chemistry from the prestigious School of Chemistry and Chemical Engineering at Nanjing University (China). During her doctoral studies, she worked under the guidance of Prof. Zhong Jin, a renowned figure in electrochemical energy systems and nanomaterials. Her Ph.D. research laid a strong foundation in functional materials, redox processes, and advanced characterization methods for electrochemical applications. Prior to her doctorate, she completed her undergraduate and master’s degrees in chemistry, where she began focusing on the synthesis and evaluation of materials for environmental and energy-related applications. Her educational journey has been rooted in interdisciplinary learning, combining materials science, electrochemistry, nanotechnology, and catalysis. This diverse academic background has equipped her with a solid theoretical and experimental skill set that supports her current research in magnesium-ion batteries and beyond. She consistently ranked at the top of her class and received multiple academic recognitions throughout her education.

Experience 

Since earning her Ph.D. in 2020, Dr. Xiaolan Xue has served as a researcher and faculty member at the School of Materials Science and Physics, China University of Mining and Technology. She is engaged in cutting-edge research focused on advanced materials for multivalent ion batteries, primarily magnesium-based systems. She has led several independent projects and collaborations, contributing to the development of interface engineering strategies, hybrid cathode materials, and redox chemistry in energy storage. Dr. Xue has extensive hands-on experience with materials synthesis, structural characterization (XRD, SEM, TEM, XPS), and electrochemical performance analysis (CV, EIS, GCD). She has also mentored graduate and undergraduate students, fostering academic growth and scientific curiosity. In addition to her laboratory work, she regularly participates in peer reviews and editorial activities. Her postdoctoral experience continues to reflect a commitment to academic excellence and innovation in sustainable and high-performance energy storage technologies.

Awards and Honors

Dr. Xiaolan Xue has been recognized with several awards and honors for her outstanding contributions to energy storage research. Notably, she has received Best Paper Awards, Young Scientist Awards, and Excellent Researcher recognitions at both national and institutional levels. Her publications in prestigious journals such as ACS Nano, Advanced Functional Materials, and Nano Research have been featured in editorial highlights and recommended reading lists. She has also been invited as a reviewer for leading scientific journals in materials science and electrochemistry. Throughout her academic journey, she earned multiple merit-based scholarships during her doctoral and postgraduate studies. Moreover, she was nominated for research excellence awards by the China University of Mining and Technology, recognizing her high-impact scientific contributions and collaborative research efforts. Her work continues to gain attention in the global battery research community, positioning her as an emerging leader in sustainable energy materials development.

Research Focus

Dr. Xiaolan Xue’s research primarily revolves around developing advanced functional materials for electrochemical energy storage systems, with a strong emphasis on multivalent ion batteries, especially magnesium-ion batteries. Her scientific approach integrates nanostructure engineering, interface modification, and cathode/electrolyte optimization to enhance the efficiency, stability, and life cycle of next-generation batteries. She focuses on both inorganic (metal sulfides, selenides) and organic electrode materials, exploring redox mechanisms, structural transformations, and interfacial reactions at the atomic level. Dr. Xue also investigates cationic-anionic redox reactions, electrolyte-cathode compatibility, and separator functionalization. Her work contributes to resolving key challenges such as dendrite formation, poor reversibility, and low conductivity in multivalent systems. With an interdisciplinary approach combining chemistry, materials science, and energy technology, her research aims to offer sustainable, high-capacity, and safe battery solutions for future electronics, grid storage, and electric vehicles. She continuously seeks to bridge fundamental understanding with practical application in energy storage technologies.

Publication

  • CuCl as a Mg2+ Reservoir for in situ Interface Layer Engineering and Highly Stable Mg Plating/Stripping, Journal of Colloid and Interface Science, 2025 (accepted).
  • Synergy of Electrolyte Manipulation and Separator Functionalization Enables Ultralong-life Nonaqueous Magnesium-Organic Batteries, Journal of Materials Chemistry A, 2024.
  • High-Capacity and Ultra-Long-Life Mg-Metal Batteries Enabled by Intercalation-Conversion Hybrid Cathode Materials, Small, 2024.
  • A Review of Metal Sulfide Cathode Materials for Non-Aqueous Multivalent Ion Batteries, Journal of Energy Storage, 2024.
  • Cationic-Anionic Redox Chemistry in Multivalent Metal-Ion Batteries, Advanced Functional Materials, 2023.
  • Interlayer Engineering of VS2 Nanosheets via In Situ Aniline Intercalative Polymerization, ACS Applied Materials & Interfaces, 2023.
  • Electronic Structure Engineering on NiSe2 via Nitrogen Doping, Journal of Colloid and Interface Science, 2023.
  • A Critical Review of Inorganic Cathode Materials for Rechargeable Magnesium Ion Batteries, Journal of Energy Storage, 2023.

Conclusion

Dr. Xiaolan Xue is a rising star in materials science, contributing outstandingly to electrochemical energy storage research. Her innovative approaches and prolific publication record underscore her value to the scientific community. She is well-positioned to lead future developments in sustainable energy materials and next-generation battery technologies.

 

 

Sadaf Saeed | Experimental methods | Best Researcher Award

Dr. Sadaf Saeed | Experimental methods | Best Researcher Award

Post doc at Shenzhen University, China

Dr. Sadaf Saeed is a highly accomplished researcher specializing in applied physics, nanotechnology, and advanced laser-based micro/nanofabrication. She is currently a Postdoctoral Research Fellow at the School of Physics and Optoelectronic Engineering, Shenzhen University, China, focusing on femtosecond laser-driven two-photon polymerization for fiber Bragg grating applications. She earned her Ph.D. in Physics (Electronics) from Changchun University of Science and Technology, China, with a thesis on multifunctional nanostructured surfaces via laser interference lithography and metal-assisted chemical etching. With experience as Head of the Physics Department at Legend Institute, Pakistan, and as a lecturer at NFC Institute of Engineering and Technology, she blends teaching and high-impact research. She has published in leading journals such as Applied Optics, Nanotechnology, Langmuir, and Applied Surface Science. Dr. Saeed is a recipient of multiple scholarships and awards and actively contributes to global R&D projects in micro/nano manufacturing and surface engineering.

Author Profile

Scopus | ORCID | Google scholar

Education

Dr. Sadaf Saeed holds a Postdoctoral fellowship in Physics from Shenzhen University. She completed her Ph.D. in Physics (Electronics) at Changchun University of Science and Technology, China, under the supervision of Prof. Dr. Zuobin Wang, with a focus on micro/nanostructured surfaces fabricated via laser techniques. She earned her M.Phil. in Physics and B.Sc. in Physics from Bahauddin Zakariya University, Multan, Pakistan, where she ranked among the top students. Her M.Phil. thesis focused on the structural and electrical properties of metal-polymer composites. She also holds an F.Sc. in General Science and Matriculation in Science from BISE Multan. Throughout her academic journey, she pursued rigorous coursework in classical mechanics, electronics, material science, computational physics, and solid-state physics, building a solid foundation for interdisciplinary research in nanotechnology, optics, and material characterization.

Experience

Dr. Sadaf Saeed has over seven years of progressive experience in academic research and teaching. Currently, she is a Postdoctoral Researcher at Shenzhen University, China. She worked as a researcher at the International Research Centre for Nano Handling and Manufacturing, Changchun, China, contributing to international nanofabrication projects. Previously, she served as Head of the Physics Department at Legend Institute of Management Sciences, Multan, where she managed curriculum development, academic planning, and student mentoring. She worked as a Physics Lecturer at NFC Institute of Engineering and Technology, teaching core physics courses. She has significant lab experience in material simulations, spectroscopy, and nanostructure characterization using advanced tools like SEM, TEM, AFM, and FDTD. She is also skilled in MATLAB, COMSOL, VASP, OriginPro, and other simulation environments, making her a versatile researcher capable of both theoretical and experimental work.

Awards and Honors

Dr. Sadaf Saeed has received several awards and honors in recognition of her academic and research excellence. She was selected for the Best Student Paper Award at the IEEE 3M-NANO 2023 Conference in Chengdu, China. She was a recipient of the Chinese Government Scholarship for her Ph.D. studies (2019–2023). During her M.Phil. program, she ranked among the top three students in her department. She has actively participated in major international conferences, including the IEEE 3M-NANO 2022 & 2023, the Asian VCSEL Day 2023, the 11th International Conference on Information Optics and Photonics (Xian, China), and AOPC 2019. Her patent on femtosecond laser fabrication for fiber Bragg grating applications further demonstrates her innovation. Additionally, she has contributed to several high-impact national and international R&D projects, including China’s “111” Project, Horizon Europe’s L4DNANO, and Jilin Provincial Science and Technology initiatives.

Research Focus 

Dr. Sadaf Saeed’s research bridges the disciplines of surface engineering, laser physics, and nanotechnology. Her primary focus is on the fabrication of multifunctional micro/nanostructured surfaces using Laser Interference Lithography (LIL) and Metal-Assisted Chemical Etching (MACE). She explores their applications in antireflection, superhydrophobicity, enhanced wettability, and SERS. In her postdoctoral work, she investigates femtosecond laser-driven two-photon polymerization techniques for phase mask fabrication in fiber Bragg grating systems, targeting high-precision optical device manufacturing. She is proficient in computational simulations such as FDTD, DFT, COMSOL, and VASP, applying them to optimize structures before fabrication. Her work also intersects optics, materials characterization, and electrical properties of nano-interfaces, contributing to the next generation of functional surfaces and optical components. She collaborates across international labs and contributes to major global initiatives, including the Horizon Europe L4DNANO project and National R&D Programs of China, emphasizing interdisciplinary, solution-oriented research.

Publications

  • Optimizing broadband antireflection with Au micropatterns: a combined FDTD simulation and two-beam LIL approachApplied Optics (2024)
  • Hierarchical and Gradient Si Nano Wires-holes Arrays by LIL and MACEIEEE 3M-NANO Conference Proceedings (2022)
  • Si Nanowires-holes Arrays with Enhanced WettabilityIEEE 3M-NANO Conference Proceedings (2023)
  • Synergistic Antireflection and SERS Enhancement in Hybrid Silicon Nanowires by LIL and MACESpringer Journal of Materials Science (Accepted)
  • Design and Fabrication of Silicon Micro Rings Using FDTD and Laser Interference Lithography and SERS PropertiesJournal of Optics (Accepted)
  • Integration of Three-Beam Laser Interference Lithography and Metal Assisted Chemical Etching…Mechanics of Advanced Materials and Structures (Accepted)
  • Advanced Femtosecond Laser-Driven Two-Photon Polymerization Technique for Phase Mask FabricationUS Patent, Shenzhen University
  • Laser Interference Lithography—A Method for the Fabrication of Controlled Periodic StructuresNanomaterials (2023)

Conclusion

Dr. Sadaf Saeed presents a compelling profile with a clear research focus, international recognition, and a strong record of academic output. Her contributions to micro/nanostructure fabrication, laser technologies, and optical device engineering are valuable to both scientific advancement and real-world applications.