In recent years, stretchable flexible electronics has become a research hotspot in the electronics industry and academia due to its outstanding expansibility, adaptability, and portability.With the improvement of science and technology, materials science, mechanics, and manufacturing process have all achieved rapid development. Advanced technologies have madepossible the manufacture of stretchable flexible electronic devices with excellent performance.In the first half (chapter 2) of this thesis, we developed an inkjet printing method topattern silver nanowires (AgNWs) with length of up to ̃ 40 m on various substrates. Welldefined and uniform AgNWs features could be obtained by optimizing the printing conditionsincluding nozzle size, ink formulation, surface energy, substrate temperature, and printingspeed. Such printed AgNWs have been used to demonstrate bi-axially stretchable conductorsthat could maintain stable conductance under an areal strain of up to 156% (256% of itsoriginal area). By printing the AgNWs electrodes on a composite composed of PDMS andelectroluminescent (EL) phosphors, I have demonstrated a printed stretchable EL display. Inchapter 3, I developed a silver nanoparticles (AgNPs) based stretchable sensor for pressuresensing through directly printing AgNPs on Polyurethane Acrylate (PUA) substrate. Highsensitivity is indicated while I test it within a low-pressure load. Its resistance increases100% when a 5.5 kPa pressure is applied on it. I explored the applications of heartbeatdetection and wind sensing in this work.
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