Deformable coloring element using an electroactive hydrogel with bottom-arranged electrodes

Kodai Usuki, Hiroaki Onoe, Eiji Iwase

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


By using an electroactive hydrogel piece and bottom-arranged electrodes. By using the bottom arrangement of electrodes, we can use a simple fabrication and achieve a high fill factor (FF). To design the element, we analyzed the electric field in various dimensions of the electrodes by using a charge simulation method. The bending factor (BF) was defined as an index of bending direction and speed of the gel. From the difference between the BFs for each dimension, we found the optimal parameters required to maximize BF on the chosen boundary condition of FF ≥ 0.9. We then determined the dimensions of a coloring element on the basis of the results of the analysis. Finally, a 3 × 3 dot-matrix display was fabricated to demonstrate a color change in all nine cells.

Original languageEnglish
Article number06FP06
JournalJapanese journal of applied physics
Issue number6
Publication statusPublished - 2015 Jun 1

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy


Dive into the research topics of 'Deformable coloring element using an electroactive hydrogel with bottom-arranged electrodes'. Together they form a unique fingerprint.

Cite this