Inkjet printed organic thin film transistors based tactile transducers for artificial robotic skin
Autor: | Perla Maiolino, Stefano Lai, Fulvio Mastrogiovanni, Annalisa Bonfiglio, Emanuele Baglini, Laura Basiricò, Piero Cosseddu, Giorgio Cannata, Simone Denei, Alberto Loi |
---|---|
Přispěvatelé: | Piero Cosseddu, Laura Basiricò, Alberto Loi, Stefano Lai, P Maiolino, E Baglini, S Denei, F Mastrogiovanni, G Cannata, Annalisa Bonfiglio |
Jazyk: | angličtina |
Rok vydání: | 2012 |
Předmět: |
Flexible system
Materials science Robot skin business.industry Tactile transducer Complex structure Organic semiconductor Transducer Thin-film transistor FIELD EFFECT TRANSISTORS Optoelectronics Robot business Mechanical deformation ORGANIC THIN FILM TRANSISTORS Inkjet printing Tactile sensor FOIL method ComputingMethodologies_COMPUTERGRAPHICS |
Popis: | We present a novel and flexible system to be employed for tactile transduction in the realization of artificial "robot skin". The mechanical deformation detection, which functionally reproduces the sense of touch, is based on Organic Thin Film Transistors (OTFTs) assembled on a flexible plastic foil, where each device acts as a strain sensor. OTFT-based mechanical sensors were fabricated employing a solution-processable organic semiconductor, namely 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-pentacene) deposited by drop casting. It will be shown that the surface deformation induced by an external mechanical stimulus gives rise in both cases to a marked, reproducible, and reversible (within a certain range of surface deformation) variation of the device output current. Starting from these results, more complex structures, such as arrays and matrices of OTFT-based mechanical sensors, have been fabricated by means of inkjet printing. Thanks to the flexibility of the introduced structure, we will show that the presented system can be transferred on different surfaces (hard and soft) and employed for a wide range of applications. In particular, it can be successfully employed for tactile transduction in the realization of artificial "robot skin". |
Databáze: | OpenAIRE |
Externí odkaz: |