<p>Most advanced technologies are based on processing materials into devices to manipulate electronic conduction, optical absorption, and emission. Detailed understanding of electronic and optical properties of materials is essential. The long-term research goal of this project is to advance the understanding of the relationship between the chemical structure, performance, and sample fabrication/processing in two-dimensional (2D) hybrid perovskites (Fig. 2) to rationally guide selection of the best materials for optoelectronic applications. The intellectual focus of the partnership between FSU and CHRNS is on collaborative work on structural characterization of 2D hybrid perovskites for microscopic understanding of these structures using neutron scattering techniques. Here we propose a comprehensive investigation of structural, optical and electronic properties of 2D hybrid perovskites to provide information that will assist in guiding clear advances in semiconductor physics. This will be achieved by measuring fundamental properties including lifetime, structure, and device efficiency. This research will potentially find new optoelectronic properties of two-dimensional hybrid perovskites through the study of isotope effects, cation substitution, structural defects and structural dimensionality.</p><img src="https://www.uncfsu.edu/assets/Images/Chemistry%20and%20Physics/PREM/Thrust%202.jpg" alt="Thrust 2" title="Thrust 2"><p><em>^{Fig. 2. Crystal Structure of (CH}_³^NH_³⁾_²^Pb(SCN)_²^I_²^{. &nbsp; &nbsp;}</em></p>