題目：Radiative cooling of solar cells: opto-electrothermal physics and modeling
1. School of Optoelectronic Science and Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006 China
2. Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province and Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006 China
摘要：Passive radiative cooling technology has attracted extensive attention as it addresses the potential applications in effectively cooling photovoltaics and related systems. Here, we performed comprehensive multidimensionaland multiphysical opto-electro-thermal (OET) modeling, which was used to design asilicon-based radiative cooling system for a solar cell (SC). Our study simultaneously takes into accountthe coupled effects of the radiative cooling characteristics, carrier thermodynamics, and electrodynamicbehaviors of SCs in the spatial and frequency domains. Based on a comprehensive photonic design, wepresented a radiative cooler with near-ideal spectral selectivity from the sunlight to the infrared band. Thefundamental OET physical mechanisms and the effect of temperature on the performance of SCs wereexplored. A comparable study on the performance parameters of the SCs with and without a radiativecooler was formulated, which revealed that the SC temperature can be reduced by over 10 °C and theabsolute power conversion efficiency (PCE) can be increased by 0.45% after employing a photonicradiative cooler. Our OET study provides a ready method to explore the comprehensive OET physics inphotovoltaic systems.