Jasleen Kaur Lall

Project

Autonomous light-actuated LCE actuators
Liquid crystal elastomers (LCEs) are an interesting material for generating three-dimensional actuators, which can be triggered by light in a wavelength-selective manner. In collaboration with a chemist, I will fabricate the LCE actuator with the standard processes of microsystem technology. The aim is to create photo-actuated devices for integrated, miniaturized systems. We want to develop demonstrators, such as a tunable aperture system that automatically adjusts to the brightness of light, similar to how the mammalian iris functions.

First supervisor

Prof. Dr. Hans Zappe

Publications in livMatS

• Understanding Photomechanical Behavior of Liquid Crystalline‐Based Actuators*
  Lall, J., & Zappe, H. (2023). Understanding Photomechanical Behavior of Liquid Crystalline‐Based Actuators. Macromolecular Materials and Engineering, 2300063. doi: 10.1002/mame.202300063
• MEMS-compatible structuring of liquid crystal network actuators using maskless photolithography*
  Lall, J., & Zappe, H. (2022). MEMS-compatible structuring of liquid crystal network actuators using maskless photolithography. Smart Materials and Structures, 31(11), 115014. doi: 10.1088/1361-665X/ac95e5
• In situ, spatially variable photoalignment of liquid crystals inside a glass cell using brilliant yellow
  Lall, J., & Zappe, H. (2022, May). In situ, spatially variable photoalignment of liquid crystals inside a glass cell using brilliant yellow. In Photosensitive Materials and their Applications II (Vol. 12151, pp. 91-97). SPIE. doi: 10.1117/12.2621178
• Structuring of liquid crystal elastomer actuators with selective polymerization for MEMS devices
  Lall, J., & Zappe, H. (2022, March). Structuring of liquid crystal elastomer actuators with selective polymerization for MEMS devices. In Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XV (Vol. 12012, pp. 30-37). SPIE. doi: 10.1117/12.2608696
  
  
  * Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy – EXC-2193/1 – 390951807