Enhanced piezoelectric performance of PVDF nanofibers by biomimicking the Spider’s long liquid transport

Scientists have been fascinated by the spider's spinning process, which enables its silk to be incredibly strong. This paper explores the use of a long needle in the electrospinning process to control the inner structure of a PVDF nanofiber. The results show that a longer needle can significantly enhance the nanofiber's piezoelectric performance. The mechanism behind this enhancement is elucidated using the laminar flow theory.