Solar cells acted as sustainable energy harvest are quickly spread across the worldwide. However, the output performance of solar cells is dramatically reduced in rainy day and the potential mechanical damages to the surface solar cell may also suppress its output capability. Herein, we propose a hybrid energy system consisted of a solar cell and a self-healing/self-cleaning triboelectric nanogenerator (TENG) for harvesting both solar and raindrop energies. The application of self-healable TENG for hybrid energy system has been a challenging task, since it is difficult to maintain both the super-hydrophobicity and healable capability for the electrification surface of TENG. This self-healable and transparent TENG shows an excellent output performance under rainy day with a peak short-circuit current of 0.8 μA and a peak open-circuit voltage of 6 V, respectively, while it can work very well with solar cell under sunny days. The self-healing TENG with elastic texture can serve as a protection layer for the solar cell, where the broken risk of the solar cell can be significantly suppressed. This proposed hybrid energy system can be used as a compensation for the currently widely used solar cells and provide a promising strategy to harvest energy from multiple sources.

太阳能电池作为可持续的能源收成，在全球范围内迅速传播。但是，在雨天太阳能电池的输出性能会大大降低，并且对表面太阳能电池的潜在机械损坏也可能会抑制其输出能力。本文中，我们提出了一种混合能源系统，该系统由一个太阳能电池和一个自修复/自清洁摩擦发电纳米发电机（TENG）组成，用于收集太阳能和雨滴能量。由于难以保持TENG的带电表面的超疏水性和可修复性，因此将其自修复TENG应用于混合能源系统一直是一项艰巨的任务。这种可自我修复且透明的TENG在雨天表现出出色的输出性能，峰值短路电流为0.8μA，峰值开路电压为6 V，分别在阳光灿烂的日子里可以很好地与太阳能电池配合使用。具有弹性质地的自修复TENG可以用作太阳能电池的保护层，其中可以显着抑制太阳能电池的破裂风险。提出的混合能源系统可以用作对目前广泛使用的太阳能电池的补偿，并提供了一种有前景的策略来从多种来源中收集能量。