Ji Yun, Zhang Kewei, Yang Ya
Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 P. R. China.
CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 P. R. China.
Adv Sci (Weinh). 2017 Dec 8;5(2):1700622. doi: 10.1002/advs.201700622. eCollection 2018 Feb.
Rapid advances in various energy harvesters impose the challenge on integrating them into one device structure with synergetic effects for full use of the available energies from the environment. Here, a multieffect coupled nanogenerator based on ferroelectric barium titanate is reported. It promotes the ability to simultaneously scavenging thermal, solar, and mechanical energies. By integration of a pyroelectric nanogenerator, a photovoltaic cell, and a triboelectric-piezoelectric nanogenerator in one structure with only two electrodes, multieffects interact with each other to alter the electric output, and a complementary power source with peak current of ≈1.5 µA, peak voltage of ≈7 V, and platform voltage of ≈6 V is successfully achieved. Compared with traditional hybridized nanogenerators with stacked architectures, the one-structure-based multieffects coupled nanogenerator is smaller, simpler, and less costly, showing prospective in practical applications and represents a new trend of all-in-one multiple energy scavenging.
各种能量采集器的快速发展对将它们集成到一个具有协同效应的器件结构中以充分利用环境中的可用能量提出了挑战。在此，报道了一种基于铁电钛酸钡的多效应耦合纳米发电机。它提高了同时收集热能、太阳能和机械能的能力。通过将热释电纳米发电机、光伏电池和摩擦电-压电纳米发电机集成在一个仅具有两个电极的结构中，多种效应相互作用以改变电输出，成功实现了一种峰值电流约为1.5 μA、峰值电压约为7 V且平台电压约为6 V的互补电源。与具有堆叠结构的传统混合纳米发电机相比，基于单结构的多效应耦合纳米发电机体积更小、更简单且成本更低，在实际应用中显示出前景，并代表了一体化多能量采集的新趋势。
