Multiband Dynamic Optical Modulation Materials Based on Reconfigurable Structures

Guest Speaker： Ass.Prof. Yujie KE, Lingnan University, Hong Kong, China

Inviter: Assoc.Prof. Zhongyang Wang

Date&Time: Friday, 12 December, 9:00-10:30

Venue:  Meeting Room 312, Building D of SMSE

Biography:

Dr. Yujie Ke is an Assistant Professor and Ph.D. supervisor at the Wu Jieh Yee School of Interdisciplinary Studies, Lingnan University, Hong Kong. He obtained his Ph.D. from Nanyang Technological University, Singapore, in 2019. After his Ph.D., he worked at the Singapore University of Technology and Design and the Agency for Science, Technology, and Research (A*STAR) in Singapore. His research focuses on smart materials and structures, photo-mechanical multiphysics analysis, and their applications in smart energy-saving windows, thermal radiation control, and structural color information, encompassing interdisciplinary knowledge in materials, optics, mechanics, and micro-nano processing. His work is published in journals such as Joule, Nature Communications, Advanced Functional Materials, Nano Letters, and ACS Energy Letters, with over 6,000 citations. He is among the 2025 Stanford 2% most cited scholars.

Abstract:

Sustainable development and carbon reduction are key global research focuses. Buildings, as the largest energy-consuming sector, account for 30-40% of global energy use and about 40% of carbon emissions. Managing solar energy and thermal radiation on demand can significantly reduce the energy consumption and carbon emissions of the building sector. Smart electromagnetic wave modulation materials can dynamically alter their physical properties to manage solar energy and thermal radiation, laying the foundation for emerging energy and sustainability technologies. Dr. Ke will discuss the development of smart materials and structures and their applications in energy-saving smart windows, switchable radiative cooling, and structural color information storage, with a focus on material design, photo-mechanical multiphysics analysis, and energy applications. This includes his research on reconfigurable deformable materials, achieving notable solar thermal regulation and new functionalities such as paper cutting (traditional paper-cutting art) and bio-inspired materials.