Macro to nanoscale energy scavengers is emerging as a promising solution to tackle the problems of energy shortage caused due to increasing world population and limited availability of energy resources. The capability of the miniaturized scavengers to harvest ambient energy like vibrations, mechanical motions, and body motions makes them an efficient alternative to clean energy solutions. This paper reviews the works done in the field of piezoelectric and triboelectric energy scavengers, the authors briefly described different types of scavengers, recent state-of-the-art designs, operating modes, performance comparisons, and future scope considering critical evaluation which can help the researchers to decide their work approach in the field of energy scavenging. The authors also speculate on how future advances in 3D printing technology and textile base energy scavenging could aid in the creation of wearable electronics. Energy scavengers will surely replace many energy sources in the coming future and will be proven to be a trailblazing method in the field of environment-friendly energy generation.

宏观到纳米级的能量清除剂正在成为解决由于世界人口增加和能源资源有限而导致的能源短缺问题的有前景的解决方案。小型化清除器收集振动、机械运动和身体运动等环境能量的能力使其成为清洁能源解决方案的有效替代品。本文回顾了在压电和摩擦电能量清除剂领域所做的工作，作者简要介绍了不同类型的清除剂、最近的最新设计、操作模式、性能比较以及考虑到关键评估的未来范围，这有助于研究人员决定他们在能量清除领域的工作方法。作者还推测 3D 打印技术和纺织基础能量清除的未来进步如何有助于创建可穿戴电子设备。能源清除剂必将在未来取代许多能源，并将被证明是环保能源生产领域的开创性方法。