Organic Semiconductor Based Strain Sensors


 

We developed an organic semiconductor based strain sensor sheet for an input system on flexible OLEDs. As resistors for strain gauges, we used a conductive polymer of poly (3, 4 - ethylenedioxythiophene) (PEDOT):polystyrenesulfonate (PSS) which is useful for touch input devices. This is because PEDOT: PSS has the advantages of flexibility and transparency. The strain sensor array was fabricated with the Parylene peel-off process. The resistance change of the fabricated PEDOT-based sensor was measured on diverse radii of curved surfaces. Finally, we demonstrated the capability to accept input by touching the sensor sheet both on flat and curved surfaces.

References :
# Masato Muraki, Seiichi Takamatsu, Kiyoshi Matsumoto, Isao Shimoyama, gOrganic Semiconductor Based Strain Sensors for Input System on Flexible OLEDs,h The 21st IEEE International Conference on Micro Electro Mechanical Systems (MEMS '08), pp. 116-119, Tucson, Arizona, USA, January 13-17, 2008. [Proceedings]