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About

Yunqin Li is a materials physicist whose research focuses on the computational design of two-dimensional (2D) materials for next-generation micro- and nano-electromechanical systems (MEMS/NEMS). Li’s major contributions lie in predicting and characterizing the piezoelectric properties of MXene thin films and monolayers—a class of 2D transition metal carbides and nitrides. In their most cited work (2022, 20 citations), Li demonstrated that VIA group functionalized MXenes exhibit large out-of-plane piezoelectricity, a critical property for MEMS sensors and actuators that is often lacking in conventional materials. A second highly cited study (2022, 18 citations) identified ferroelastic Zr₂P₂XY monolayers with tunable in-plane electronic anisotropy and remarkable out-of-plane piezoelectric response, offering a pathway for multifunctional nanodevices. Li’s theoretical investigations of Sc₂C-based functionalized MXenes (2022, 14 citations) further expanded the design space for NEMS applications. By combining first-principles calculations with materials design, Li has established a framework for discovering 2D materials with exceptional electromechanical coupling, ambient stability, and mechanical durability. Their work is foundational for engineers seeking to integrate 2D piezoelectrics into high-performance, miniaturized devices.