研究进展：用于生物机械能收集的可植入纳米发电机的材料设计

Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.

APL Mater. 2017 Mar;5(7). doi: 10.1063/1.4978936.

Implantable nanogenerators are rapidly advanced recently as a promising concept for harvesting biomechanical energy . This review article presents an overview of the most current progress of implantable piezoelectric nanogenerator (PENG) and triboelectric nanogenerator (TENG) with a focus on materials selection, engineering, and assembly. The evolution of the PENG materials is discussed from ZnO nanostructures, to high-performance ferroelectric perovskites, to flexible piezoelectric polymer mesostructures. Discussion of TENGs is focused on the materials and surface features of friction layers, encapsulation materials, and device integrations. Challenges faced by this promising technology and possible future research directions are also discussed.

可植入纳米发电机作为一种收集生物机械能的有前景的概念，近年来发展迅速。本文综述了可植入压电纳米发电机（PENG）和摩擦纳米发电机（TENG）的最新进展，重点介绍了材料选择、工程设计和组装。讨论了PENG材料从ZnO纳米结构到高性能铁电钙钛矿，再到柔性压电聚合物介观结构的演变。对TENG的讨论集中在摩擦层的材料和表面特性、封装材料以及器件集成方面。还讨论了这一有前景的技术所面临的挑战以及未来可能的研究方向。