TY - DATA T1 - Highly Sensitive Flexible Pressure Sensors Based on Printed Organic Transistors with Centro-Apically Self-Organized Organic Semiconductor Microstructures PY - 2017/11/15 AU - So Young Yeo AU - Sangsik Park AU - Yeon Jin Yi AU - Do Hwan Kim AU - Jung Ah Lim UR - https://acs.figshare.com/articles/journal_contribution/Highly_Sensitive_Flexible_Pressure_Sensors_Based_on_Printed_Organic_Transistors_with_Centro-Apically_Self-Organized_Organic_Semiconductor_Microstructures/5640562 DO - 10.1021/acsami.7b15960.s001 L4 - https://ndownloader.figshare.com/files/9827929 KW - 3 D OSC FET pressure sensor KW - Printed Organic Transistors KW - microstructure KW - semiconductor KW - pressure sensor KW - transistor KW - Centro-Apically Self-Organized Organic Semiconductor Microstructures KW - monitoring KW - elastomeric top-gate dielectric N2 - A highly sensitive pressure sensor based on printed organic transistors with three-dimensionally self-organized organic semiconductor microstructures (3D OSCs) was demonstrated. A unique organic transistor with semiconductor channels positioned at the highest summit of printed cylindrical microstructures was achieved simply by printing an organic semiconductor and polymer blend on the plastic substrate without the use of additional etching or replication processes. A combination of the printed organic semiconductor microstructure and an elastomeric top-gate dielectric resulted in a highly sensitive organic field-effect transistor (FET) pressure sensor with a high pressure sensitivity of 1.07 kPa–1 and a rapid response time of <20 ms with a high reliability over 1000 cycles. The flexibility and high performance of the 3D OSC FET pressure sensor were exploited in the successful application of our sensors to real-time monitoring of the radial artery pulse, which is useful for healthcare monitoring, and to touch sensing in the e-skin of a realistic prosthetic hand. ER -