The performance of photovoltaic (PV) solar cells can be adversely affected by the heat generated from solar irradiation. To address this issue, a hybrid device featuring a solar energy storage and cooling layer integrated with a silicon-based PV cell has been developed. This layer employs a molecular solar thermal (MOST) energy storage system to convert and store high-energy photons—typically underutilized by solar cells due to thermalization losses—into chemical energy. Simultaneously, it effectively cools the PV cell through both optical effects and thermal conductivity. Herein, it was demonstrated that up to 2.3% of solar energy could be stored as chemical energy. Additionally, the integration of the MOST system with the PV cell resulted in a notable decrease in the cell’s surface temperature by approximately 8°C under standard solar irradiation conditions. The hybrid system demonstrated a solar utilization efficiency of 14.9%, underscoring its potential to achieve even greater efficiencies in forthcoming advanced hybrid PV solar energy systems.

中文翻译：

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同时发电和分子太阳能热能存储的混合太阳能装置


光伏 (PV) 太阳能电池的性能可能会受到太阳辐射产生的热量的不利影响。为了解决这个问题，开发了一种混合设备，该设备具有与硅基光伏电池集成的太阳能存储和冷却层。该层采用分子太阳热能 (MOST) 能量存储系统，将高能光子（通常由于热化损失而未被太阳能电池充分利用）转换并存储为化学能。同时，它通过光学效应和导热性有效冷却光伏电池。在此，研究表明高达 2.3% 的太阳能可以作为化学能储存。此外，MOST 系统与光伏电池的集成导致在标准太阳辐射条件下电池表面温度显着降低约 8°C。该混合系统的太阳能利用效率为 14.9%，凸显了其在即将推出的先进混合光伏太阳能系统中实现更高效率的潜力。