Near-infrared photodetectors based on CH3NH3PbI3 perovskite single crystals for bioimaging applications

Abstract

Near-infrared (NIR) photodetector based on CH₃NH₃PbI₃ perovskite single crystal has potential application in NIR bioimaging in the first biological window (700–900 nm). To demonstrate NIR bioimaging with the CH₃NH₃PbI₃ single crystal photodetector, the high-performance NIR photodetector based on the CH₃NH₃PbI₃ single crystal with the excellent crystalline quality was fabricated, the microscopic imaging system was constructed, and the in vitro NIR bioimaging of the mouse organs was performed in this work. The NIR images of the mouse kidney, mouse spleen, and mouse ovary were consistent with the corresponding real objects, indicating the feasibility of the photodetector for NIR bioimaging. The results reported in this work show that the NIR photodetector based on the CH₃NH₃PbI₃ single crystal is expected to be widely used in bioimaging.