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Proceedings Paper

Cellulose electro-active paper: actuator, sensor and beyond
Author(s): Jaehwan Kim; Sang Yeol Yang; Gyu-Young Yun; Sangdong Jang; Kiju Yun
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Paper Abstract

Recently, cellulose has been discovered as a smart material that can be used as sensors and actuators. This newly discovered material is termed as electro-active paper (EAPap) that has merits in terms of lightweight, flexible, dryness, biodegradable, biocompatible, easy to chemically modify, cheap and abundance. The actuation principle of cellulose EAPap bending actuator is known to be a combination of piezoelectric effect and ion migration effect. This paper presents further investigation of cellulose EAPap for its possibilities in biomimetic actuator, sensor, MEMS, acoustic devices and others. Biomimetic actuator is made with cellulose EAPap by fabricating rectifying antenna (rectenna) array on it. Cellulose EAPap material is customized to satisfy the material requirement for actuators and other devices. The material improvement all about cellulose EAPap is introduced. To fabricate the rectenna array, micro patterning of metallic layer in conjunction with Schottky diode fabrication on the cellulose was made. The Schottky diode fabrication allows possibility of thin film transistor fabricated on a cellulose paper. Microwave power transmission is demonstrated by using rectenna arrays, which can be used for many applications. Some of the device fabrication along with brief demonstrations is illustrated.

Paper Details

Date Published: 6 April 2009
PDF: 8 pages
Proc. SPIE 7287, Electroactive Polymer Actuators and Devices (EAPAD) 2009, 728710 (6 April 2009); doi: 10.1117/12.815955
Show Author Affiliations
Jaehwan Kim, Inha Univ. (Korea, Republic of)
Sang Yeol Yang, Inha Univ. (Korea, Republic of)
Gyu-Young Yun, Inha Univ. (Korea, Republic of)
Sangdong Jang, Inha Univ. (Korea, Republic of)
Kiju Yun, Inha Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7287:
Electroactive Polymer Actuators and Devices (EAPAD) 2009
Yoseph Bar-Cohen; Thomas Wallmersperger, Editor(s)

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