An all-weather solar cell that can harvest energy from sunlight and rain

作者：Tang, Qunwei^*; Zhang, Hongna; He, Benlin; Yang, Peizhi^*

来源：Nano Energy, 2016, 30: 818-824.

DOI：10.1016/j.nanoen.2016.09.014

• All-weather solar cell
• Conducting composite
• Charge transfer
• Energy conversion

Future solar cells may produce electricity in all weathers. We present here a cost-effective and high-efficiency graphene based conducting composite tailored all-weather solar cell that can be actuated with raindrops and sunlight. Due to the formation of pi-electronIcation double-layer pseudocapacitance at conducting composite/raindrop interface, the delocalized pi-electrons on graphene can migrate along percolating pathways forward at spreading process and backward at shrinking periods, resulting in charging and discharging of the pseudocapacitor. The optimized solar cell yields a photoelectric conversion efficiency of 9.8% under simulated sunlight irradiation (air mass 1.5, 100 mW cm(-2)) as well as current over several microamps and voltage of hundreds of microvolts under simulated raindrops. This work could extend our knowledge of future all-weather solar cells.

• 出版日期2016-12
• 单位云南师范大学; 中国海洋大学