Mrs Ziyi Han | Optical Materials | Best Researcher Award
Mrs. Ziyi Han is a PhD candidate at Peking University 
, specializing in two-dimensional (2D) materials 
. She holds a Bachelor’s degree from Hebei Normal University and a Master’s from Tianjin University. Her research focuses on chemical vapor deposition (CVD) 
and scanning transmission electron microscopy (STEM) 
, enabling precise control of 2D material structures. With 15 peer-reviewed publications 
and collaborations with top global institutions 
, her work advances quantum materials 
and nanoelectronics 
. Her expertise in AI-driven material synthesis 
makes her a strong candidate for the Best Researcher Award 
.
Mrs Ziyi Han, Peking University, China
Profile
Education
Mrs. Ziyi Han earned her Bachelor’s degree from Hebei Normal University 
and her Master’s degree from Tianjin University 
. She is set to begin her PhD studies at Peking University , where she will delve deeper into two-dimensional (2D) materials . Her research specializes in chemical vapor deposition (CVD) for controlled material growth and scanning transmission electron microscopy (STEM) for atomic-level characterization. Looking ahead, she aims to explore novel structural features using STEM techniques and enhance material modulation through advanced CVD strategies 
, contributing to next-generation nanomaterials .
Experience
Mrs. Ziyi Han holds a Bachelor’s degree from Hebei Normal University and a Master’s degree from Tianjin University . She is set to begin her PhD studies at Peking University 
, where she will continue her groundbreaking research on two-dimensional (2D) materials . Her expertise lies in chemical vapor deposition (CVD) and scanning transmission electron microscopy (STEM) , focusing on precise structural characterization. In her future work, she aims to uncover novel structural features and enhance material modulation using advanced CVD techniques, contributing to next-generation nanomaterials and quantum applications .
Research Focus 
Mrs. Ziyi Han specializes in the synthesis of novel two-dimensional (2D) materials and their atomic-level characterization using scanning transmission electron microscopy (STEM) . Her research aims to develop precisely controlled 2D structures through chemical vapor deposition (CVD) , unlocking new properties for nanoelectronics 
, optoelectronics 
, and quantum materials . By leveraging STEM techniques, she explores atomic arrangements and interlayer interactions, paving the way for advanced material applications. Her work is instrumental in enhancing 2D material properties, driving breakthroughs in next-generation semiconductors, energy storage, and quantum computing 
.
Contributions
Crystal symmetry plays a crucial role in material properties but remains challenging to manipulate due to strong covalent and ionic bonds . Mrs. Ziyi Han’s research introduces a substrate-guided growth mechanism to fabricate AB′-stacked SnSe₂ superlattices via chemical vapor deposition (CVD) , enabling precise control of interlayer mirror and gliding symmetries 
. By stabilizing higher-order phases (6R, 12R, 18C) 
through charge transfer from mica substrates, her work enhances nonlinear optical responses 
. Supported by first-principle calculations 
, this breakthrough in stackingtronics revolutionizes topological phase engineering, with transformative applications in quantum materials and optics .
Publication
Title: Atomically Dispersed Catalytic Platinum Anti-Substitutions in Molybdenum Ditelluride
Authors: J. Zhao, X. Han, J. Li, Z. Han (Ziyi Han), X. Zhao
Journal: Journal of the American Chemical Society, 2025
This study explores atomically dispersed platinum (Pt) catalysts within molybdenum ditelluride (MoTe₂) , offering enhanced catalytic performance . The work contributes to advancing atomic-level engineering of catalysts , significantly impacting energy storage and conversion technologies 
.
. His strong academic foundation has propelled his groundbreaking research in optical physics, nanophotonics, and transformation optics, making him a leading figure in the field of modern electromagnetism 
Experience 
, leading research in optoelectronics and biophotonics 
. In 2019, he was honored with the Nanyang Early Career Teaching Excellence Award 
for his outstanding mentorship at NTU, Singapore. His excellence in scientific reviewing earned him the Best Referee Award (2017) from Light: Science & Applications 
. He was awarded the Blackett Laboratory Industry Club Thesis Prize (2012) 
. Additionally, he received the Lee Family Scholarship (2009) from Imperial College London 
(National Science Review), attracting attention from Physics.org. His research on quantum effects in van der Waals forces 
(PNAS 111, 18422) and plasmonic systems (Phys. Rev. Lett. 111, 093901) was highlighted by Nature Photonics. Notably, he contributed to the first macroscopic invisibility cloak at visible frequencies 
(Nature Commun. 2, 176), named a Top 10 Breakthrough of 2010 .
. He has contributed significantly to invisibility cloaks and electromagnetic wave manipulation 
Publications 
. His postdoctoral research at Harvard University (2009–2014) explored plasmonic metasurfaces, paving the way for revolutionary advancements in 
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