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EACON 2020

EurAsian Conference on Nanophotonics

April 6 – 9, 2020 / Jena, Germany

Yu-Chieh Cheng

Department of Electro-Optical Engineering, National Taipei University of Technology, 10608, Taipei, TAIWAN

Kirigami-based soft robots with light-responsive properties

The development of stimuli-responsive soft actuators, a task largely undertaken by material scientists, has become a major driving force in pushing the frontiers of micro- robotics. Due to restrictions in sample size (below few centimeters) and lack of actuation complexity, such soft actuators are based on simple architectures with limited degrees of freedom in movement. In this talk, we apply kirigami-based techniques to fabricate complex 3D robotic structures based on LCNs (liquid crystal polymer networks) [1,2]. Under external stimuli, LCNs demonstrate the specific form of deformation and its structural anisotropy can be programmed by tuning molecular orientation in advanced [3]. Their versatile deformabilities upon heat/light stimuli give rise to a fast- increasing interest in the realization of novel soft robotic systems, in which the nature-inspired strategies are often adopted. Such 2D-to-3D structural transformations can give rise to mechanical actuation upon light illumination, thus allowing the realization of kirigami-based light-fuelled robotics. A kirigami rolling robot, where a light beam controls the multi-gait motion and steers the moving direction in 2D, realizing complex and flexible 3D structures with light-activated robotic functions [4].

Figure 1. Kirigami-based soft LCN microrobots [4] a) Chemical composition of the LC monomer mixture and schematic drawing of the cell infiltration process. b) Control of the oriented LC monomers c) the UV light was used to polymerize the LC mixture d) Thermal and light responses of an LCN film actuator. e) A kirigami-based rolling robot was driven by the light beam illuminating the robot from the bottom to induce actuation in LCN petals. f) Light steers he moving direction of the rolling robot in 2D.


  1. White, Timothy J.; Broer, Dirk. Nat. Mater. 2015, 14, 1087-1098.
  2. Ohm , Christian; Brehmer, Martin; Zentel, Rudolf. Adv. Mater. 2010, 22, 3366-3387.
  3. Zeng, Hao; Wasylczyk, Piotr; Parmeggiani, Camilla; Martella, Daniele; Burresi, Matteo, Wiersma Sybolt, Diederik, Adv. Mater. 2015, 27, 3883-3887.
  4. Cheng , Yu-Chieh; Lu, Hao-Chuan; Lee, Xuan; Zeng, Hao; Priimagi, Arri. Adv. Mater. 2019, (Accepted)

Further Talks

Andrea Csáki

Microfludic Synthesis of plasmonic Nanoparticles for Sensing Applications

Andrey Turchanin

Controlled growth of transition metal dichalcogenide monolayers for applications in nanoelectronic and nanophotonic devices

Chi Chen

Near Field Spectroscopic Imaging: from Hard to Soft Materials

Chi-How Peng

Cobalt mediated controlled/living radical polymerization: from mechanism understanding to materials application

Chun-Hong Kuo

Bridging Energy and Chemistry via Nanoarchitectonic Engineering at Atomic Scale

Falk Eilenberger

Integration of two-dimensional materials in optical systems for nonlinear optics, sensing, and single photon sources

Frank Setzpfandt

Nonlinear frequency conversion in nanostructured optical systems for application in quantum photonics

Heng-Liang Wu

Controlling the Oxidation State of Cu Electrode and Reaction Intermediates for Electrochemical CO2 Reduction to Ethylene

Kien-Voon Kong

Direct Observation of Reaction Intermediates of Metal-based Therapeutic Agents in Single Living Cell Using TERS

Maria Wächtler

Quantum confined semiconductor nanostructures in light-driven catalysis

Martin Presselt

Supramolecular Control of Optical and Electronical Properties of Two-Dimensional Dye Layers

Po-Chiao Lin

New Environment Sensitive Fluorophores with Color-Tailored Emission: In Vivo Monitoring of Carbonic Anhydrases Expression on Growth of Larval Zebrafish

Shangjr (Felix) Gwo

Plasmonic Metasurface-Enhanced Linear and Nonlinear Processes in Two-Dimensional Semiconductors

Ta-Jen Yen

Empowering Bilayer MoS2 by Engineered Plasmonic Nanostructures for Optoelectronic Applications

Tiow-Gan Ong

Carbodicarbene, Carbogenic Maverick, Not a Moderate!

Volker Deckert

Plasmon Enhanced Probe Spectroscopies – Structural Investigation of Nanoscale Objects

Yi-Tsu Chan

Molecular self-assembly methodology for rational construction of metallosupramolecules with high structural complexity

Yian Tai

Toward a universal polymeric material for electrode buffer layers in organic optoelectronics

Yu-Chieh Cheng

Kirigami-based soft robots with light-responsive properties

Yu-Jung Lu

Controlling Light-matter Interactions at Nanoscale with Plasmonics: From Spontaneous Emission to Lasing