Hybrid CsPbBr3@CP-1 composites with enhanced stability and dual-emitting for white LED and photoelectrical applications

The halide perovskite CsPbBr 3 quantum dots (QDs) exhibit remarkable potential for diverse applications, attributed to their distinctive optical properties . However, their poor stability hinders practical implementation. In this study, we enhanced the stability of perovskite QDs by incorporating CsPbBr 3 QDs into a coordination polymer called CP-1. CP-1 features excellent photoluminescent properties thanks to its ligand trans,trans-9,10-bis(4-pyridylethenyl) anthracene (An2Py). The hybrid CsPbBr 3 @CP-1 composites possess dual emissions: a narrow peak from CsPbBr 3 QDs and a broad band from CP-1. Due to the enhanced stability of CsPbBr 3 QDs, a white light-emitting diode (LED) was fabricated using CsPbBr 3 @CP-1 composites. In addition, the hybrid composites shows promising photoelectrical characteristics. Therefore, this work presents a methodology enhancing the stability and optical characteristics of CsPbBr 3 QDs, thereby broadening the practical applications of optical QDs in white LEDs and optoelectronic devices .