A record flexible piezoelectric KNN ultrafine-grained nanopowder-based nanogenerator
Source abstract
Abstract
We explore a type piezoelectric material 0.9525(K0.5Na0.5NbO3)-0.0475LiTaO3 (KNN-LTS) which can be used to fabricate nanogenerator with high output voltage and current due to its high piezoelectric constant (d33). Because of its unique structure mixed with multi-wall carbon nanotube and polydimethylsiloxane, the output voltage is up to 53 V and the output current is up to 15 uA (current density of 12.5 uA/cm2) respectively. The value of the output voltage and output current represent the highest level in the piezoelectric field reported to date. The KNN-LTS nanopowder-based nanogenerator can also be used as a sensitive motion detection sensor.
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Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Innovative Energy Harvesting Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tsinghua University 1 Institute of Microelectronics, , Beijing 100084, China
Tsinghua University 2 Tsinghua National Laboratory for Information Science and Technology (TNList), , Beijing 100084, China
Tsinghua University 3 School of Materials Science and Engineering, , 100084 Beijing, China
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