Biomimetic smart optical skins using stimuli-responsive hydrogel microstructures

2014 Fiscal Year Final Research Report

• Project/Area Number: 25600055
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nano/Microsystems
• Research Institution: Keio University (2014); The University of Tokyo (2013)
• Principal Investigator: ONOE Hiroaki 慶應義塾大学, 理工学部, 講師 (30548681)
• Co-Investigator(Kenkyū-buntansha): IWASE Eiji 早稲田大学, 理工学術院, 准教授 (70436559)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: ハイドロゲル / ディスプレイ / PUMPSゲル / 構造色 / 反射型ディスプレイ / マイクロ流体デバイス

Outline of Final Research Achievements

The aim of this project is to develop an artificial optical smart skin mimicking the principle of display systems of biological skins observed in nature. Firstly, we developed a pigment-based display device using electroactive PAMPS hydrogel. We fabricated 3 x 3 dot matrix display by combining PAMPS sheets and a wiring substrate, and succeeded in switching the display by using deformation of the PAMPS sheets. Secondly, to fabricate a display device based on structural color, we developed a "Channel-Cut Method" to pattern multiple types of photonic colloidal crystals into a PDMS sheet. We succeeded in fabricating a optical filter with patterned two different color dots and confirmed that the specific wavelength reflected by the patterned photonic crystals matches well to theoretical prediction.

Free Research Field

マイクロナノシステム