Mechanically Ductile Electronic, Electrochemical and Energy Devices Achieved by Materials Design and Multilayer Integration

In this presentation we report the fabrication of mechanically deformable opto-electronic devices on various plastic and elastic substrates, including bio-derived ones. Thus, we describe organic and metal oxide thin-film transistors, OTFTs and MOTFTs, respectively, employed to fabricate circuits for backplane displays and driving/stimuli-sensitive elements of sensors. Furthermore, organic electrochemical transistors (OECTs) and OECT circuits with performance identical to those of glass substrates are demonstrated on PET and cellulosic substrates. Finally, stretchable organic solar cells using a combination of new photoactive materials and a combination of more ductile electrodes and interlayers are demonstrated and integrated with OTFT/OECT circuits for physiological recording.