Perovskite luminescent solar concentrators for photovoltaics

As large-area photon collection devices designed for photovoltaics, luminescent solar concentrators (LSCs) have been proposed for more than 40 years. In recent years, the perovskite-based LSCs have received much interest for the convenient preparation process and low cost along with high quantum yields of perovskite luminophores. However, optical losses, such as non-radiative recombination loss and reabsorption loss, seriously impair the performance of LSCs and further impede the commercialization of such promising photovoltaic devices. Various strategies, such as increasing the Stokes shift and defect passivation, have been implemented to enhance the optical performance in perovskite-based LSCs. Here, we appraise the applications of perovskite luminophores in LSCs and review the typical preparation method of perovskite-based LSCs. The state-of-the-art solutions are presented to address the optical losses, leading to the demonstration of enabling high-performance perovskite-based LSCs.