Blue light 1 Bromine compounds 1 Cesium compounds 1 Conversion efficiency 1 Crystallinity 1 CsPbBr3 1 Electron transport layers 1 Electron transport properties 1 Gallium nitride 1 III-V semiconductors 1 Lead compounds 1 Light transmission 1 Magnetron sputtering 1 Nanocrystalline gallium nitride 1 Nanocrystallines 1 Nanocrystals 1 Nitride layers 1 Optical wireless 1 Optical wireless power transmission 1 Perrovskite material 1 Photovoltaic power converters 1 Transmissions 1 Wireless power transmission 1 nanocrystalline gallium nitride 1 optical wireless power transmission perrovskite materials 1 photovoltaic power converter 1