Focus on Flexible Magnetoelectric Materials and Help the World of “Internet of Everything” – Researcher Li Runwei, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences

Li Runwei, researcher and doctoral supervisor of Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, is currently Secretary of the Party Committee of Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences. , National “High-level Talent Special Support Program” technology innovation leader, Zhejiang Province super expert. He has successively won the Asian Magnetic Union Young Scholar Award, the first prize of Zhejiang Province Natural Science Award, the first prize of Ningbo Science and Technology Award, etc.; now he is a member of the Chinese Institute of Electronics, a committee member of the Asian Union of Magnetics (AUMS), and a director of the Chinese Materials Research Society. , Deputy Director of Applied Magnetics Branch of Chinese Institute of Electronics, Deputy Director of Magnetic Professional Committee of Chinese Physical Society, etc. He has published more than 260 SCI papers, with more than 10,000 SCI citations, and more than 120 authorized patents. He has edited 2 monographs of “Flexible Electronic Materials and Devices” and “Flexible and Stretchable Electronics”, and participated in the writing of 3 monographs. The Key Laboratory of Magnetic Materials and Devices of the Chinese Academy of Sciences and the Innovation Center of Magnetic Materials and Application Technology of Zhejiang Province were established.

Research on flexible materials

Could you please briefly introduce yourself and the main research work of your research group?

At present, the research work of our team mainly focuses on three aspects: 1. Preparation and physical properties of flexible magnetoelectric functional materials: around the development of high-quality flexible magnetoelectric functional materials preparation technology; etc.) the evolution and regulation of physical properties of magnetoelectric functional materials and devices. 2. Multi-functional resistive information storage materials and devices: Based on resistive memory, various physical fields are used to control the migration, distribution, charge and magnetic moment of ions/atoms inside the device, so that the resistance value of the device becomes non-volatile It can reveal the relevant physical laws and mechanisms, and explore its potential applications in emerging fields such as flexible electronics and artificial intelligence. 3. Flexible, elastic and biomimetic sensitive materials and sensors: in terms of materials/structures, focus on the methods and principles of flexibility and even elasticity of materials/structures such as conductivity and function; Sensing mechanism of thermal, magnetic and other parameters, evolution law and failure mechanism of physical properties under stress/strain; in terms of devices, focus on printing and microfabrication technology of flexible/elastic sensors, and their integration technology with circuits and energy and related algorithms .

What changes do you think the development of flexible electronics will bring to people’s daily life? What is the main focus of your team’s research?

With the development of wearable, implantable and human-computer interaction technologies, flexible/elastic electronics has become an emerging interdisciplinary and technological field. Flexible/elastic electronic materials and devices have gradually begun to enter people’s lives in the fields of flexible display, smart clothing, smart home, smart sports and smart robots. to a huge technological innovation. In order to realize the complete flexibility of the entire electronic system, the flexibility and even elasticity of functional materials and components such as conductive materials, sensing, and storage must be realized, which is also a key problem in the current field of flexible electronics. Our team has been committed to the research of new flexible/elastic magnetoelectric functional materials and devices, mainly focusing on elastic conductive materials, flexible/elastic force-sensitive sensing materials and devices.

Flexible Magnetoelectric Materials

Flexible Magnetoelectric Materials

Inspiration comes from life, InfoMat helps dissemination of academic achievements

Your team published an original article titled ‘Ultra-robust stretchable electrode for e-skin: In situ assembly using a nanofiber scaffold and liquid metal to mimic water-to-net interaction’ on InfoMat. What is your source of inspiration? Could you please introduce this work?

The inspiration for this work mainly comes from the observation of the water film on the fishing net when the fisherman is playing. This water film is both soft and can be deformed adaptively. By analyzing its microstructure and dynamic mechanics, we designed an imitation “fishing net-water film”. “The liquid metal-spinning ultra-stable film achieves an extremely low initial square resistance (52mΩ sq−1), which solves the problems of incompatibility of electrical conductivity and elongation rate in elastic electrodes, unstable electrical properties under cyclic deformation, strain Under the mesh, the liquid metal is bound to expand outward and the liquid metal flows adaptively in the mesh to realize a low-resistance and high-stability stretchable electrode. The dynamic adaptive conductive network of the electrode enables it to have strong dynamic cycle stability. After 330,000 cycles of 100% tensile strain, the resistance only changed by 5%. At the same time, the electrode still showed stable electrical performance in the face of changes in the service environment such as cold and heat, acid and alkali, and water immersion. The electrode has also been applied to all-weather human epidermal physiological signal monitoring, intelligent human-machine interface and human body hyperthermia, etc. It is expected to help the sustainable development of wearable health monitoring systems and electronic skin human-machine interface based on the Internet of Everything.

In your opinion, what is the positioning of InfoMat journals?

InfoMat has always aimed at key fields such as materials science, information technology materials and energy materials, and has published a large number of influential cutting-edge research results and broad-spectrum industry reviews. It also has important reference value. At the same time, InfoMat has always been at the level of the top journals in the world, and the latest impact factor is maintained at 24.79, which will continue to be a highly influential journal.

As an InfoMat author, how efficient do you think InfoMat editors are in handling manuscripts? How professional are the reviewers and how fast are the articles published?

InfoMat editors are very efficient in processing articles and manuscripts. Every link (review, review, return comments, re-review, proofreading, online) makes us feel that the editors are efficient, high-quality, and high-level working status. The writers are also very professional, and every comment mentioned is to the point, profound and thorough, and revising the manuscript based on these comments can raise the level of the article to a higher level. At the same time, the follow-up publicity work of InfoMat has also played an important role in continuing to expand the influence of academic articles. Publishing articles on InfoMat will make us feel that the academic achievements condensed by several years of hard work will not be ignored.

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