Filter-free Color Image Sensor Based on CsPbBr3−3nX3n (X = Cl, I) Single Crystals

Centimeter-sized CsPbBr3−3nX3n single crystals were grown using the modified Bridgman method. Eight filter-free narrowband photodetectors were fabricated based on the CsPbBr3−3nX3n crystals utilizing the concept of charge collection narrowing. A filter-free color image sensor was constructed using these eight CsPbBr3−3nX3n narrowband photodetectors.