Yongqiang Ji | Experimental methods | Best Researcher Award

Published on by High Energy Physics

Assoc. Prof. Dr. Yongqiang Ji | Experimental methods | Best Researcher Award

Henan Academy of Sciences | China

Ji Yongqiang is a highly accomplished researcher specializing in nanomaterials, particularly quantum dots and optical devices like QLEDs and solar cells. He is currently serving as an Associate Researcher at the Henan Academy of Sciences and has previously held positions as an Assistant Researcher at Peking University and a PhD student at Xi’an Jiaotong University. His research has earned him recognition for his work in luminescent nanocrystals and perovskite quantum dots, driving innovations in solar cell technology and light-emitting devices.

👨‍🎓Profile

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📚 Early Academic Pursuits

Ji’s academic journey began at Xi’an University of Technology, where he earned his Bachelor’s in Applied Physics. Under the guidance of Associate Professor Men Shouqiang, he laid a strong foundation in solid-state physics, digital circuits, and quantum mechanics. His interest in material science and semiconductor physics grew during his master’s at Henan University, where he worked with Professor Qian Lei and contributed significantly to condensed matter physics. His doctoral studies at Xi’an Jiaotong University under Professor Wang Minqiang focused on electronic ceramics and device technologies, marking the start of his journey into nanomaterials and optoelectronics.

🔬 Professional Endeavors

Ji’s career has been characterized by exceptional research leadership and contributions to luminescent nanocrystals, quantum dot solar cells, and QLEDs. At Peking University, under Professor Gong Qihuang, he developed cutting-edge devices and optimized fabrication platforms for quantum dots, which enhanced device efficiency and stability. His hands-on expertise spans from magnetron sputtering to transmission electron microscopy (TEM), showcasing his proficiency in advanced research instruments.

💡 Contributions and Research Focus

Ji’s research is driven by the fabrication and spectral tuning of luminescent nanocrystals, particularly quantum dots and perovskite quantum dots. Key contributions include:

  • Quantum Dot Solar Cells: He developed a precise fabrication platform for AgBiS2 quantum dots, optimizing light absorption and solar cell efficiency.
  • QLED Device Optimization: By improving spin-coating speeds and nanocrystal concentrations, Ji achieved high-brightness QLEDs, pushing the boundaries of light-emitting devices.
  • Perovskite Nanostructures: He pioneered research into 1D nanostructures and core-shell structures, improving optical properties and stability for applications in optical communication and energy harvesting.

🌍 Impact and Influence

Ji’s work has left a lasting impact in the fields of nanotechnology, optical devices, and energy solutions. His research on quantum dot solar cells and QLEDs is essential for the advancement of renewable energy technologies and next-generation display systems. Through his collaborations with leading institutions like Peking University and Henan Academy of Sciences, Ji has not only advanced scientific understanding but also contributed to the commercialization of advanced technologies.

📑 Academic Cites

Ji’s research is widely cited in high-impact journals such as Nanotechnology, Micromachines, Materials, and Nano-Structures & Nano-Objects. His work on perovskite quantum dots and quantum dot solar cells has been instrumental in shaping contemporary research in renewable energy and optoelectronics. His publications have earned recognition for their novelty, technical depth, and practical applications.

🛠️ Research Skills

Ji’s technical expertise is multifaceted, and his key research skills include:

  • Synthesis Methods: Mastery in hot injection, solvothermal, and ball-milling techniques to prepare quantum dots.
  • Device Fabrication: Expertise in QLED and solar cell fabrication, optimizing processes like spin coating and annealing to enhance device performance.
  • Material Characterization: Proficient in TEM, PR745 LED testing systems, and vacuum coating for material analysis and device testing.

🏫 Teaching Experience

Ji has shared his knowledge as a mentor to graduate students at Henan University and Xi’an Jiaotong University, guiding them through complex topics in semiconductor physics and material science. His role as a reviewer for various scientific journals demonstrates his commitment to fostering academic growth and providing critical feedback to emerging researchers in the field.

🏆 Awards and Honors

Ji’s academic excellence is reflected in numerous awards and scholarships, including:

  • Third-Class Scholarship at Xi’an University of Technology (2012)
  • First-Class Academic Scholarship at Henan University (2014)
  • Yao Xi Ferroeletric Scholarship at Xi’an Jiaotong University (2020)
  • Boya Postdoctoral Program at Peking University (2021)
  • Outstanding Graduate of Shaanxi Province (2022)

🌟 Legacy and Future Contributions

Looking ahead, Ji is well-positioned to continue making groundbreaking contributions to the fields of nanotechnology and energy solutions. His ongoing projects in perovskite QLEDs and quantum dot solar cells are poised to lead to more efficient, durable, and cost-effective devices. His expertise in quantum materials will likely play a crucial role in the future development of sustainable energy technologies and advanced optoelectronic systems. Ji’s commitment to interdisciplinary research and mentorship ensures a bright future for both his career and the next generation of researchers.

Publications Top Notes

Group-VA Doped ZnO Injection Layer for Bright and Efficient Perovskite Light-Emitting Diodes

  • Authors: X. Yang, Y. Ji, Q. Li, C. Lu, R. Zhu
    Journal: Advanced Functional Materials
    Year: 2025

Surface-enhanced Raman scattering of R6G dimerization during self-healing of gel

  • Authors: Y. Zhou, M. Wang, J. Wang, N.V. Gaponenko, A.S. Bhatti
    Journal: Mikrochimica Acta
    Year: 2025

Solvent-Engineering-Assisted Ligand Exchange Strategy for High-Efficiency AgBiS2 Quantum Dot Solar Cells

  • Authors: Q. Zhong, B. Zhao, Y. Ji, R. Zhu, L. Zhao
    Journal: Angewandte Chemie – International Edition
    Year: 2024

Lateral Phase Heterojunction for Perovskite Microoptoelectronics

  • Authors: L. Li, H. Yan, S. Li, X. Wang, R. Zhu
    Journal: Advanced Materials
    Year: 2024

Ligand-Tuned AgBiS2 Planar Heterojunctions Enable Efficient Ultrathin Solar Cells

  • Authors: J. Chen, Q. Zhong, E. Sirotti, R. Zhu, I.D. Sharp
    Journal: ACS Nano
    Year: 2024

 

Jiawei Wang | Experimental methods | Best Researcher Award

Published on by High Energy Physics

Mr. Jiawei Wang | Experimental methods | Best Researcher Award

College of Information Engineering, China Jiliang University | China

Dr. Jiawei Wang is an accomplished academic in Condensed Matter Physics, with a Ph.D. from Tsinghua University and extensive experience in research, teaching, and leadership roles in China and abroad. His work focuses on magnetic materials, multiferroic films, and quantum physics, with notable achievements in scholarship awards, conference presentations, and research grants. His career exemplifies dedication to advancing knowledge and nurturing future scientists.

👨‍🎓 Profile

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🎓Early Academic Pursuits

Dr. Wang’s academic journey began at Lanzhou University, where he received his B.S. in Physics. His outstanding academic performance earned him multiple university scholarships, and he was recognized as an Outstanding Graduate in 2007. He continued his education at Tsinghua University, one of the premier institutions for physics in China, where he earned his Ph.D. in Condensed Matter Physics. His dissertation, conducted under the guidance of top experts in the field, focused on the magnetic properties of low-dimensional materials, setting the stage for his future research.

💼Professional Endeavors

Dr. Wang’s professional career has spanned various prestigious institutions. He has held faculty positions at Zhejiang University of Technology and currently serves as a faculty member at China Jiliang University. His roles have ranged from instructing undergraduates in foundational physics courses, particularly electromagnetism, to supervising graduate students and research projects. Dr. Wang has also collaborated internationally, notably as a Visiting Scholar at Northeastern University, where he conducted pioneering research on new magnetic materials. He has also been an active research manager, overseeing programs funded by national science foundations.

🔬Contributions and Research Focus

Dr. Wang’s research contributions have focused on magnetic materials, specifically developing multiferroic hexagonal RMnO3 films with unique magnetic properties, including high magnetostriction and perpendicular magnetic anisotropy. His work in this area aims to develop materials for advanced electronics, data storage, and sensing technologies. He has been a principal investigator for several funded projects such as those supported by the National Natural Science Foundation of China and the Zhejiang Natural Science Foundation. Through his research, Dr. Wang is advancing the field of condensed matter physics, exploring novel materials with real-world applications in energy and technology.

🧠Research Skills

Dr. Wang’s research skills are exemplified through his leadership in magnetic materials research and his ability to manage complex scientific programs. His expertise includes material fabrication, characterization techniques, and the development of multiferroic materials. His focus on developing high-performance materials, such as those with high magnetostriction coefficients and perpendicular magnetic anisotropy, showcases his innovative approach to solving practical problems in material science. Dr. Wang has a deep understanding of theoretical and experimental physics, which he combines to push the boundaries of his field.

👨‍🏫Teaching Experience

Dr. Wang has been a dedicated educator, teaching a wide array of courses in physics, including electromagnetic fields, mathematical physics methods, and laboratory physics. He has taught students at both the undergraduate and graduate levels, guiding them through fundamental principles and advanced concepts. Dr. Wang also plays a significant role in mentoring graduate students and young researchers, preparing them for careers in both academia and industry. His experience as a teaching assistant at Tsinghua University early in his career laid the foundation for his effective teaching methodology and commitment to student development.

🔮Legacy and Future Contributions

Dr. Wang’s legacy in the field of condensed matter physics is still unfolding, but his research on multiferroic materials and magnetic materials is poised to have a long-lasting impact. His ability to secure national funding and lead multi-year projects speaks to his leadership skills and his potential to shape future innovations in material science. Going forward, Dr. Wang will likely continue making groundbreaking contributions to the magnetism and material science fields. Additionally, as he expands his publication record and engages more deeply with interdisciplinary research, his influence is set to grow, inspiring future generations of physicists and material scientists.

Publications Top Notes