Preparation Of One-dimensional PbZr_0.52Ti_0.48O₃Nanomaterial And Fabrication Of High Output Nanogenerator

With the electronic devices developing into micro/nano scale, they are widely used in many fields, such as human health’s in-situ monitoring, infrastructure and environment monitoring, and military technology. So looking for a proper power source that matches the size of electronic devices has been an important issue for the further development of micro/nano devices. Nanogeneraor was invented by Zhong Lin Wang in2006, which gives a new way to solve the above challenge. Nanogenerator could harvest each kind of tiny mechanical energy, and convert it into electric energy to power micro/nano devices (such as sensors, detectors). In the work, first, we synthesized PbZr0.52Ti0.48O3(PZT) single crystalline nanowires via hydrothermal method. Single wire nanogenerator was fabricated with PZT nanowire, and its output voltage and current were0.12V,1.1nA, respectively. Then, we use a novel design to fabricate vertically aligned ultra-long PZT nanowire array using electrospinning nanofibers. Based on this nanowire array, we developed a new type of integrated nanogenerator with the ultra-high output voltage of209V and current density of23.5μA/cm2, which are3.6times and2.9times of the previous record values, respectively. The nanogenerator can instantaneously power a commercial light-emitting diode (LED) without the energy storage process. Moreover, it can also be directly used to stimulate the frog’s sciatic nerve, and induce a contraction of a frog’s gastrocnemius. This work benefits to the application of nanogenerator in self-powered system and biomedicine.