Ultrahigh piezoelectric coefficients of Li-doped (K,Na)NbO3 nanorod arrays with manipulated O-T phase boundary: Towards energy harvesting and self-powered human movement monitoring
نویسندگان
چکیده
Lead-free piezoelectric one-dimensional (1D) nanostructures have exhibited great potential in building biocompatible micro/nano-energy harvesters and self-powered smart sensors. However, their low coefficient still remains as the biggest obstacle for practical applications. In this work, an ultrahigh with calibrated d 33 from 400 pm V -1 to 814 is achieved Li-doped (K,Na)NbO 3 (KNLN) lead-free nanorod arrays (NRAs). The giant enhancement on performance of KNLN nanorods can be attributed manipulation phase transition behavior together relaxation strain. Li + dopants induce large NbO 6 octahedral distortion result decreased temperature orthorhombic (O) tetragonal (T) phase, which leads construction O-T boundary at room improves polarization products. NRAs gives rise remarkably improved energy harvesting performance, shows highly sensitive pressure sensing behaviors utilized monitoring human-body motions. Giant up (K,Na,Li)NbO by manipulating orthorhombic-tetragonal through A-site Li-doping. exhibit outstanding performances realize human body motions analyzing movement behaviors. • were grown hydrothermal process. ~ − 1 arrays. Orthorhombic-tetragonal constructed RT. nanogenerators performance. Self-powered human-body-movements realized nanogenerators.
منابع مشابه
An Adaptive Self-powered Piezoelectric Energy Harvesting Circuit and Its Application on Bridge Condition Monitoring
The abundant mechanical vibration energy in bridge road environment can be converted into electric energy by using the piezoelectric energy harvest technology, which could be an efficient way to provide energy required by the wireless sensor network in the bridge condition monitoring system. An autonomous energy harvesting system has been designed based on cantilever beams for sensing and acqui...
متن کاملAn Energy-autonomous Wireless Temperature Monitoring System Powered by Piezoelectric Energy Harvesting
Within his publication we demonstrate an energy-autonomous wireless temperature monitoring system that is powered by piezoelectric energy harvesting. An air compressor pump has been chosen as a representative target system. Two different types of piezoelectric generators, cantilever beam with a maximum power output of 37 μW and an impact-type membrane generator with a power output of 120 μW, we...
متن کاملA Self-powered Piezoelectric Energy Harvesting Circuit with Frequency Conversion for Wireless Sensor Network
This paper presents a self-powered piezoelectric energy harvesting circuit using frequency conversion. A vibration energy harvesting principle is introduced. Due to a capacitive characteristic of the piezoelectric vibration transducer, an energy harvesting circuit is proposed for matching the capacitive impedance. The energy harvesting circuit consists of a matching circuit with up-conversion, ...
متن کاملA self-powered UV photodetector based on TiO2 nanorod arrays
Large-area vertical rutile TiO2 nanorod arrays (TNAs) were grown on F/SnO2 conductive glass using a hydrothermal method at low temperature. A self-powered ultraviolet (UV) photodetector based on TiO2 nanorod/water solid-liquid heterojunction is designed and fabricated. These nanorods offer an enlarged TiO2/water contact area and a direct pathway for electron transport simultaneously. By connect...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nano Energy
سال: 2021
ISSN: ['2211-3282', '2211-2855']
DOI: https://doi.org/10.1016/j.nanoen.2021.106072