近年来，随着一系列柔性可穿戴器件概念的提出及产品的应用，如何为器件提供更加安全、方便、持续的能源成为一个亟需解决的问题。自2012年摩擦纳米发电机（ Triboelectric Nanogenerator， TENG）被首次报导以来，由于其具有质量轻、安全性高、清洁环保及可持续性等一系列优点，正在成为人们关注的焦点。 TENG能够利用摩擦起电及静电感应原理将机械能转化为电能，利用这一特点，人们可以将行走、打字甚至呼吸、眨眼、心跳等机械能转化为电能，继而为可穿戴器件持续稳定地供电。但是， TENG也存在着能量转化效率较低、输出功率不够高、脉冲式的电信号不够稳定等不足，这也成为TENG在实际应用中亟待解决的重大难题。从材料种类、结构形貌以及混合器件3方面，综述了近几年为提高TENG输出功率、稳定性等而进行的研究进展，详细分析了不同因素对器件性能的影响。
Recent years, with the emergence and application of a series of conceptions and products of wearable electron-ics, it has become an urgent issue to power electronics in a safe, convenient and sustainable way. Since firstly reported in 2012, triboelectric nanogenerator ( TENG) has been widely explored because of its light weight, high out-put perform-ance, clean, sustainability, etc. The function of harvesting and transforming mechanical energy to electricity makes TENG a promising energy resource to power wearable electronic devices by turning walking, typing, even breathing and blinking to electricity. However, the disadvantages of TENG are obvious: quite low conversion, low out-put performance and im-pulsive out-put voltage. All these shortcomings lead to a great challenge for the application of TENG. Therefore, to improve the out-put power density of TENG has become the key factor for its application in supporting wearable electronic devices. This paper focuses on the developments of the out-put performance and stability of TENG in recent years from three as-pects: ①different kinds of materials;②structure and morphology of materials;③hybrid nanogenenators. The influence of different factors has been analyzed in details in this paper.
参考文献
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