Balanced Photodetection in One-Step Liquid-Phase-Synthesized CsPbBr 3 Micro-/Nanoflake Single Crystals.

Here, we reported a low-cost and high-compatibility one-step liquid-phase synthesis method for synthesizing high purity CsPbBr micro/nanoflake single crystal. Based on the high purity CsPbBr, we further prepared a low-dimensional photodetector capable of balanced photodetection, involving both high external-quantum-efficiency and rapid temporal-response, which is barely realized in previously reported low-dimensional photodetectors.