Synthesis and characterization of cesium lead bromide perovskite quantum dots with photovoltaic applications

This work analyzed perovskite quantum dots, in this case, CsPbBr 3 PQDs. The morphological and structural characterization shows three PQDs crystalline phases with an average particle size of 14 nm. On the other hand, the optical results show PQDs absorption at 487 nm, and PL is centered at 501 nm with excitation at 405 nm, indicating potential properties for photovoltaic and optoelectronic devices. The solar cell was fabricated and studied: FTO/c-TiO 2 /m-TiO 2 /PQDs/spiro-OMeTAD/Al. The JV curves suggested that the photocurrent was 0.196 mA cm −2 with FF and V oc values of 24.5% and 0.72 V, respectively. A solar cell was obtained at ambient conditions with future optimization to make it more efficient. Graphical abstract