Kang Peng, Petrescu Florian Ion Tiberiu, Wu Yao, Li Ying, Li Xin, Wang Likui, Shi Gang
Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
Department of Mechanisms and Robots Theory, Bucharest Polytechnic University, 060042 Bucharest, Romania.
Nanomaterials (Basel). 2023 Apr 7;13(8):1301. doi: 10.3390/nano13081301.
In conventional photo-thermal-electric conversion systems, the photo-thermal conversion module is coupled to a thermoelectric conversion module. However, the physical contact interface between the modules causes serious energy loss. In order to solve this problem, a novel photo-thermal-electric conversion system with an integrated support material has been developed, with a photo-thermal conversion component at the top, an inside thermoelectric conversion component, and a cooling component at the bottom, surrounded by a water conduction component. The supporting materials of each part are polydimethylsiloxane (PDMS), and there is no apparent physical interface between each part. This integrated support material reduces the heat loss caused by the mechanically coupled interfaces in traditional components. In addition, the confined edge 2D water transport path effectively reduces the heat loss due to water convection. Under 1 sun irradiation, the water evaporation rate and open-circuit voltage of the integrated system reach 2.46 kg m h and 30 mV, respectively, and are nearly 1.4 times and 5.8 times higher than those of non-integrated systems.
在传统的光热-电转换系统中，光热转换模块与热电转换模块相耦合。然而，模块之间的物理接触界面会导致严重的能量损失。为了解决这个问题，人们开发了一种具有集成支撑材料的新型光热-电转换系统，其顶部为光热转换组件，内部为热电转换组件，底部为冷却组件，并由水传导组件包围。各部分的支撑材料均为聚二甲基硅氧烷（PDMS），各部分之间没有明显的物理界面。这种集成支撑材料减少了传统组件中机械耦合界面所造成的热损失。此外，受限边缘二维水传输路径有效地降低了由于水对流导致的热损失。在1个太阳光照下，集成系统的水蒸发速率和开路电压分别达到2.46 kg m h和30 mV，分别比非集成系统高出近1.4倍和5.8倍。
