Zhang Yingyao, Gao Peng
College of Chemistry, Fuzhou University, Fuzhou 350108, China.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Molecules. 2022 Nov 5;27(21):7590. doi: 10.3390/molecules27217590.
Due to their emission-free operation and high efficiency, photovoltaic cells (PVCs) have been one of the candidates for next-generation "green" power generators. However, PVCs require prolonged exposure to sunlight to work, resulting in elevated temperatures and worsened performances. To overcome this shortcoming, photovoltaic-thermal collector (PVT) systems are used to cool down PVCs, leaving the waste heat unrecovered. Fortunately, the development of thermoelectric generators (TEGs) provides a way to directly convert temperature gradients into electricity. The PVC-TEG hybrid system not only solves the problem of overheated solar cells but also improves the overall power output. In this review, we first discuss the basic principle of PVCs and TEGs, as well as the principle and basic configuration of the hybrid system. Then, the optimization of the hybrid system, including internal and external aspects, is elaborated. Furthermore, we compare the economic evaluation and power output of PVC and hybrid systems. Finally, a further outlook on the hybrid system is offered.
由于其无排放运行和高效率，光伏电池（PVC）一直是下一代“绿色”发电机的候选者之一。然而，PVC需要长时间暴露在阳光下才能工作，这导致温度升高和性能恶化。为克服这一缺点，光伏-热收集器（PVT）系统被用于冷却PVC，而废热未得到回收。幸运的是，热电发电机（TEG）的发展提供了一种将温度梯度直接转化为电能的方法。PVC-TEG混合系统不仅解决了太阳能电池过热的问题，还提高了整体功率输出。在本综述中，我们首先讨论PVC和TEG的基本原理，以及混合系统的原理和基本配置。然后，阐述混合系统的优化，包括内部和外部方面。此外，我们比较了PVC和混合系统的经济评估和功率输出。最后，对混合系统进行了进一步展望。
