Multifunctional device with an integration of light emitting, photo detective, and energy harvesting

摘要

In this work, we present a multifunctional device based on a heterojunction active layer formed between the halide perovskite and chalcogenide quantum dots. The device is demonstrated with an integration of proof-of-concept functions, including a voltage controllable multicolor light-emitting diode, an efficient energy harvesting device, and a photosensitive detector. The concept of the heterojunction active layer provides a feasible route to design efficient multifunctional devices in the future.