Organic-Inorganic Hybrid Perovskite as an Efficient Light Convertor for Visible Light Communication

Light emitting diodes (LEDs)are commonly used as light sources not only for illumination but also for data transmission especially in visible light communication (VLC). To provide the white light source in a VLC system, the blue emission of an LED is partially converted into green, yellow, and/or red emission. Tunable band gap, low non-radiative recombination rate, and high color purity introduce organic-inorganic halide perovskites (PSK)as promising candidates for using as a light convertor in VLC. In this work, a uniform perovskite nanocrystal layer with a high photoluminescence quantum yield (PLQY)as high as 90% is fabricated that can be efficiently employed as light convertor for VLC.