串联
电
环境科学
工程类
电气工程
航空航天工程
作者
Ning Xu,Pengchen Zhu,Yun Sheng,Lin Zhou,Xiuqiang Li,Hairen Tan,Shining Zhu,Jia Zhu
出处
期刊:Joule
[Elsevier BV]
日期:2020-01-10
卷期号:4 (2): 347-358
被引量:127
标识
DOI:10.1016/j.joule.2019.12.010
摘要
Energy and clean water are two intertwined fundamental elements for human civilization and sustainable development. Here, we devise a monolithic tandem solar electricity-water generator that synergistically produces electricity and clean water by utilizing the full spectrum of solar irradiance. The tandem generator has two components: a top infrared-transparent photovoltaic device using above-band-gap photons, and a bottom solar water purifier using the below-band-gap photons. More strikingly, a well-designed water-proof thermal interconnecting layer (WTIL) makes these two components work synergistically: the bottom purifier serves as an evaporative cooler of the top solar cell to increase its efficiency, whereas the thermalization energy of the top cell is reutilized by the bottom purifier for producing more clean water. We experimentally demonstrate that a prototype hybrid tandem solar device with WTIL can generate electricity with a power output of 204 W m−2 and purify water at a rate of 0.80 kg m−2 h−1 under 1-sun illumination.
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