报告题目(中文)：Mechanoluminescence Materials And Their Applications
报告内容简介：Mechanoluminescence (ML) that exhibit mechano-electro-optoelectronic conversion and undergo multiple cycles of ML emission in response to repetitive dynamic load have tremendous potential in diverse areas of engineering and medicine.[1-5] In particular, piezoluminescence is promising candidate for applications, including stress-sensing and damage diagnosis, where it generates dynamic in situ visualization of stress distributions, including industrial plants and buildings. Precise dynamic stress/strain imaging is critical for a broad range of researches and engineering analyses ranging from micrometer to meter-scales, but there is no precise multi-scale strain sensor, especially for onsite real-time structural health monitoring. A scalable piezoluminescent strain sensor is presented for challenge to solve worldwide structural diagnosis problems ranging from micrometer to meter-scales. Significant progresses are recently made on both the highly sensitive piezoluminescent sensors and the quantitative evaluations in dynamic stress/strain imaging. The precise dynamic imaging of stress/strain and the onsite fracture inspection and danger-level (stress concentration) diagnoses on large-scale infrastructures are demonstrated. The innovative scalable strain sensor would prospectively open a new era in multi-scale strain imaging research and contribute to multi-field researches related precise dynamic stress/strain imaging and healthcare of structure. This talk will discuss the physical mechanisms of piezoluminescence, materials, and applications. Selected host materials and metal-ion activators are used for demonstrating the fundamentals. These materials are promising for applications in visualization, health care system for nondestructive analysis, nano-sensing, security, energy harvesting, biomedicine, novel light sources, and displays. References [1] C. N. Xu, T. Watanabe, M. Akiyama, X. G. Zheng, Appl. Phys. Lett. 76, 2414 (1999) [2] L. Liu, C.N. Xu, A. Yoshida, D. Tu, N. Ueno, S. Kainuma, Adv. Mater. Tech. 1800336 (2019). [3] D. Tu, C.N. Xu, A. Yoshida, M. Fujihara, J. Hirotsu, X.G. Zheng, Adv. Mater. 29, 1606914 (2017). [4] J. Li, C.N. Xu, D. Tu, X. Chai, X.S. Wang, L. Liu, E. Kawasaki, Acta Mater. 145, 462-469 (2018). [5] D. Tu, R. Hamabe, C.N. Xu, J. Phys. Chem. C, 122, 23307 (2018).
报告人姓名：Prof. Dr. Chao-Nan Xu
报告人简介(中文)：Chao-Nan Xu, principal research manager and leader of the research team at the National Institute of Advanced Industrial Science and Technology (AIST), Japan, the founding chair of the Mechanoluminescence Technology Consortium, Director of the Electronic Division of the Ceramic Society of Japan. She has been concurrent professor at Kyushu University since 2005. She holds more than 150 patents and published more than 300 papers. Her awards include the MEXT Minister Prize (gold metal), CerSJ Academic Prize, etc. She pioneered the new repeatable mechanoluminescent materials and their novel applications particularly in lighting, health care, and stress/strain visualization. She is Fellow of Ceramics Society of Japan. Her recent research interests include advanced functional materials and their applications.
报告人单位(中文)：National Institute of Advanced Industrial Science and Technology (AIST)
报告时间：2019-11-18 15:00
报告地点：7003全讯白菜网B楼526
主办单位：7003全讯白菜网
联系人：张志军
