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Hena Zhang is a leading researcher in the field of two-dimensional (2D) piezoelectric materials, with a focus on designing novel thin films for micro-electro-mechanical systems (MEMS) and energy conversion devices. Her work addresses critical challenges in the field, such as the lack of robust out-of-plane piezoelectric coefficients and mechanical durability in existing 2D materials. Zhang’s most cited paper (2021, 53 citations) introduces enhanced out-of-plane piezoelectricity in group-III(A) Janus hydrofluoride monolayers, a breakthrough for microelectronic sensors. She further advanced the field by demonstrating large out-of-plane piezoelectricity in VIA group functionalized MXenes (2022, 20 citations), offering excellent ambient temperature stability for MEMS applications. Her theoretical studies on ferroelastic Zr2P2XY monolayers (2022, 18 citations) and group V-IV-III-VI films (2020, 14 citations) reveal tunable electronic anisotropy and new directions for piezoelectricity, expanding the potential of 2D materials in flexible electronics and nanogenerators. With a growing citation impact, Zhang’s work is pivotal for next-generation, high-performance piezoelectric devices.