A Study of the Addition of Oxides and Polymers to Perovskite Quantum Dot Solution and the Effects on Film Formation and Device Performance.

Perovskite quantum dots have shown promise in creating light-emitting diodes (LED) due to their high luminescence and tunable bandgaps. Challenges are still present in creating consistent films for devices. This study is focused on adding oxides and polymers to the quantum dot solution to investigate if the surface morphology and uniformity can be improved. Methylammonium lead bromide perovskite quantum dots will be created using a ligand-assisted reprecipitation method with 3,3-Diphenylpropylamine (DPPA) and trans-cinnamic acid (TCA) ligands. A comparison between different concentrations of oxides and polymers will be discussed. Photoluminescence (PL), photothermal deflection spectroscopy (PDS), atomic force microscopy (AFM), and Fourier-transform infrared spectroscopy (FTIR) will be used to characterize the films. Devices, such as LEDs and single-carrier devices, will be fabricated and compared to see the effects of each additive.