Project R-12919

Study on the INfluence of the sTructurE of the oRganic cation on key Properties of (quasi-)2D hybRid perovskites towards the rational design of Efficient and sTable optoElectRonics (INTERPRETER) (Research)

Hybrid organic-inorganic perovskites (HOIPs) have been under intense research over the past decade since they combine excellent optoelectronic properties with solution processability. (Quasi-)2D HOIPs are currently in the spotlight because of enhanced material stability and a much higher degree of compositional flexibility compared to 3D HOIPs. Although a variety of, mostly simple, organic cations have been incorporated into (quasi-)2D HOIPs, it is still unclear how the chemical structure of the organic cation influences the properties of these materials. A systematic and in-depth study will be performed to translate into structure-property relationships the influence of the chemical structure of the organic cation on key properties that determine the optoelectronic performance and stability of Q-2D HOIPs. I hypothesize that using functional, more complex, organic cations that form strongly ordered organic layers inside the hybrid structure will reduce energetic disorder, enhancing the optoelectronic properties. Additionally, the formation of rigid organic layers with strong intermolecular interactions is hypothesized to enhance intrinsic material stability. This proposal will generate invaluable knowledge to speed up the rational design of stable and performant optoelectronics based on (quasi-)2D HOIPs. Besides extending my existing network with international experts, the groundbreaking results are envisioned to lay the groundwork for an ERC starting grant application.

01 September 2022 - 31 August 2023