Stable metal-halide perovskites for luminescent solar concentrators of real-device integration

Luminescent solar concentrators (LSC), capable of converting broad-band radiation into narrow-spectral photons, are highly attractive in urban area for solar energy harvest in large area. Despite of many advances in LSC research, real-device integration to LSC power source has not been realized to date. In this work, a stable zerodimensional perovskite nanocrystal was used as embedding phosphor to provide an extremely large Stokes shift up to 1.28 eV. The ensuing LSC featured both an edge coupling efficiency of 81% and a power conversion efficiency (PCE) of 1.1%. To demonstrate its integration ability to electric devices, four pieces of LSC were tandemly stacked with two commercial silicon panels, whereby the output power was charged on a motor-driven fan. Such compact device was able to drive the fan through a xenon lamp radiation despite of its relatively low PCE (0.2%). Our work represents a major step for real-device coupling to LSC, providing many possibilities to electricity extraction from solar energy.

Automated summary

This work demonstrates the integration of a stable zero-dimensional perovskite nanocrystal as an embedding phosphor in luminescent solar concentrators (LSC), achieving high efficiency conversion and integration with electric devices. Despite the relatively low efficiency, the LSC is able to extract electricity from solar energy.