Siwei Liu
Papers
2
Total Citations
59
H-Index
2
About
Siwei Liu is a leading researcher in the field of smart materials and photoresponsive polymers, with a focus on designing systems that convert molecular-level stimuli into macroscopic motion. Their major contributions center on harnessing light and humidity to create programmable, high-performance actuators. In their highly cited 2020 work (39 citations), Liu pioneered the integration of excited-state intramolecular proton transfer (ESIPT) with *trans-cis* isomerization in anil-poly(ethylene terephthalate) systems. This dual-molecular mechanism enabled unprecedented photodeformable behaviors—from simple bending to complex, lifelike motions like "dancing butterflies"—demonstrating a powerful new strategy for soft robotics and microdevices. More recently (2023, 20 citations), Liu advanced the field by designing a vertical gradient expansion structure in a polyimide-based humidity sensing layer. This innovation achieved an ultra-fast response, high sensitivity, and large deformation under humidity, setting a new benchmark for environmental-responsive actuators. With these breakthroughs, Liu has established a clear trajectory from fundamental photochemistry to practical, stimuli-driven materials, earning recognition for merging molecular design with macroscopic functionality. Their work continues to inspire next-generation autonomous systems and adaptive surfaces.
Research Focus
Key Achievements
Top Papers
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- 2