OPUS 28

Project description

The main objective of this project is to develop new organic molecules for charge-extraction layers that would simultaneously improve the charge extraction and transport, and consequently the performance of inverted PSCs. To realize the aims, the compositional engineering of hole transporting materials based on self-assembled monolayers (SAMs) will be applied to improve interfacial properties of MHPs. Our proposed tailored organic molecules bearing T-shaped and bipodal topologies should pave the way for stable and efficient HTLs by strict control over HOMO energy levels, tight intermolecular packing within self-assembled monolayers, and simultaneous binding to both ITO and perovskite surfaces. In addition to engineering of the HTL, the formation of appropriate electron transport layer (ETL), with suitable energy-level alignment for perovskite and high conductivity plays a vital role in device performance and stability. In this project, this issue will be addressed by novel non-fullerene small organic electron-transporting materials based on naphthalene mono- and diimides cores, which would promote the development of stable and efficient inverted PSCs. Integral part of the proposal will be the study on understanding the structure-property relationship between the newly developed molecules and device performance, which would shed light on the further exploration of new materials for photovoltaics. Finally, this project will also open the opportunity to get experience in a currently growing research area related to the fabrication of perovskite/silicon tandems.

Project members

• Daniel Prochowicz

Consortium partner

• Dr Marcin Lindner (Institute of Organic Chemistry PAS)

Publications