Executive Summary : | The motivation behind the current research is to understand the impact of directed Förster resonance energy transfer (FRET) in the optoelectronic device performances in inorganic halide perovskite nanocrystals (PNCs). FRET-designed devices, particularly in solar cells have garnered much attention due to their improvement in power conversion efficiency by minimizing energy losses. The current proposal focuses on modulating the charge transport dynamics in the CsPbBr3 and CsPbCl3 PNCs with regulated energy transfer to organic quenchers or quantum dots (QDs). When synthetically anion-exchanged from CsPbBr3 to CsPbCl3, we wish to study the tuneable characteristics not just in their optical behavior, but also in the appearance of unique features of in their charge transport characteristics in current-voltage measurements. Some of the significant aim and novelty of this current proposal is as follows: 1. How does the FRET efficiency alter with PNCs and the impact of anion exchange on such the excited-state deactivation pathways with QDs? 2. How does the presence of FRET with CdSe/ZnS QDs affect the charge transport mechanism in blends PNCs? |