Haoran Cheng, Since 2020, he has been a PhD candidate at the National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University. His research field is developing functional polymer materials and exploring their applications in electromagnetic interference shielding and microwave absorption. In 2023, Haoran joined Lin’s group and started his visiting research in the Department of Chemical & Biomolecular Engineering at National University of Singpaore. His research focuses on the application of flexible and wearable materials in electromagnetic shielding.