| abstract |
The invention discloses a photodetector based on charge narrowing absorption effect and a preparation method thereof, aiming at solving the problems of the wide half-wave peak width and the detection capability of only a single wavelength band of the existing perovskite photodetector, including glass substrates. , transparent conductive electrode layer, double narrow-band control layer, perovskite sensitive layer, electron transport layer, hole blocking layer and metal electrode layer, transparent conductive electrode layer is evaporated on glass substrate, transparent conductive electrode layer from bottom to top A double narrow-band control layer, a perovskite sensitive layer and an electron transport layer are spin-coated, and a hole blocking layer and a metal electrode layer are sequentially evaporated on the electron transport layer from bottom to top, which effectively narrows the half of the photodetector. The wave peak width improves the detection performance of the perovskite photodetector, and the preparation method is simple and efficient, and is suitable for large-scale production. |