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会议网站：http://mtt2024.csmnt.org.cn
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Rujun Ma is a professor in the School of Materials Science and Engineering of Nankai University, selected by the National Youth Thousand Talent Program. He has led many key projects of the National Key R&D Program of the Ministry of Science and Technology, the National Natural Science Foundation of China, and the key projects of the Tianjin Natural Science Foundation, etc. He graduated from the College of Nanotechnology, Sungkyunkwan University, South Korea, with a Ph.D. degree in February 2013, and then worked as a postdoctoral researcher in the School of Energy Science and the Institute of Basic Science of the same university. In April 2015, he joined Prof. Qibing Pei's group at UCLA as a postdoctoral researcher, and in September 2018, he joined the School of Materials Science and Engineering at Nankai University.His main research interests are flexible active/passive solid-state cooling materials and devices and multifunctional flexible thermoelectric materials and devices. In recent years, he has published in Science (2), PNAS, Nature Communications, Joule (2), Chemical Society Reviews, Energy & Environmental Science, Advanced Materials (4), Advanced Energy Materials (2), Nano Letters (7), ACS nano (2), etc. He has been authorized more than 10 patents in the United States, China, and South Korea, and has applied for 2 international patents.Traditional refrigeration equipment commonly uses environmentally polluting Freon and has low cooling efficiency. The current increasingly integrated electronic chips need more efficient cooling technology to extend their service life. A compact and portable solid-state refrigeration system with high cooling efficiency and performance parameters can provide effective heat dissipation for current wearable electronics and can be widely used. Whereas electrocaloric cooling with ferroelectric materials is an efficient and novel alternative to Freon. Here, we utilize a flexible ferroelectric electrocaloric polymer film and an electrostatic driving mechanism to enable effective heat transfer between the heat source and the heat sink. The use of reversible electrostatic force reduces the parasitic power consumption and enables effective heat transfer through instantaneous formation of good thermal contact between the polymer film and the heat source or heat sink. Electrocaloric effect refrigeration system performance factor exceeds existing vapor compression refrigeration technology. The high efficiency, non-polluting electro-thermal effect cooling device not only spans the performance of existing solid-state cooling technologies, but in the future it can be made into a very small cooler to be carried around in a pocket. Moreover, it can also effectively cool down cell phones, computers and wearable electronics to extend their service life.（一）欢迎登录mTT2024官方网站：http://mtt2024.csmnt.org.cn 注册参会。
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mTT2024会务组联系方式：
【学会会员】张倩倩：18811456626
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