A highly-efficient concentrated perovskite solar cell-thermoelectric generator tandem system

• 作者: Yangying Zhou Yanan Chen Qi Zhang Yu Zhou Meiqian Tai Kunihito Koumoto Hong Lin
• 来源期刊: 能源化学
• 年，卷（期）: 2021,（8）
• 页码范围: 730-735
• 页数: 6页
• 语种: 英文

摘要

Concentrated photovoltaic (CPV) has been identified as an effective method to further enhance the efficiency of photovoltaic cells.Previous studies on CPV mainly focused on Ⅲ-Ⅴ multi-junction cells.Nevertheless,Ⅲ-Ⅴ CPV technology is mainly used in niche applications due to its high cost.Here,we use metal-halide perovskite solar cell (PSC) to demonstrate a concentrated photovoltaic-thermoelectric tandem device.The thermoelectric generator (TEG) is utilized to reduce the effect of heat generation under concentrated solar irradiance.Our tandem system achieved a peak power conversion efficiency (PCE) of 25.0％ at a solar concentration of 3 suns.This efficiency exceeded that of the single PSC by ～4.7％.Our work proves that by controlling the heat flow in concentrated PSC-TEG tandem system,the redundant heat produced by upper PSC can be effectively reused.This tandem structure provides a promising approach to improve the efficiency and stability of PSC under low-concentrated solar irradiation.