Colloidal Quantum Dots in the Photosensitive Layer Based on Perovskite

The effect of colloidal quantum dots on the optical characteristics of photosensitive layers of the perovskite crystal structure has been investigated. The study used a comparative analysis of photosensitive layers with and without quantum dots. As a result, absorption, transmission and photoluminescence spectra were obtained. It can be concluded that the inclusion of CQD in the composition of perovskite leads to an increase of absorption and a decrease of transmission in the short-wavelength region from the peak of photoluminescence of quantum dots. It can also contribute to the shift of perovskite photoluminescence peak to the long-wavelength region.