Two/quasi-two-dimensional perovskite-based heterostructures: Construction, properties and applications

Van der Waals heterostructures integrated from various two-dimensional (2D) layered materials provide fundamental building blocks for optoelectronic devices with novel functionalities, such as photovoltaic solar cells, light emitting diodes (LEDs) and photodetectors. Two-dimensional and quasi-two-dimensional perovskites (abbreviated as 2D perovskites hereafter) exhibit unique properties, such as large exciton binding energy, high photoluminescence quantum efficiency, large oscillator strengths and long carrier diffusion length, and thus are emerging candidates for next-generation optoelectronic devices.


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