초록 |
Electronic skins (E-skins) based on organic field effect transistors (OFET) addressed by active matrix are fascinating candidates for human-machine interfaces, and prosthesis. However, low power consumption and high sensitivity are essentially required for truly wearable systems. Here, by utilizing the contact behavior of OFET, we introduce pressure sensitive contact transistors to detect pressure. A conducting microstructured elastomer is used as deformable source/drain electrodes of staggered transistor, inducing drain current change from both the channel geometry change and contact resistance change upon pressure. This new structure enables low voltage operation ( |