Silver phenylselenide (AgSePh), a two-dimensional (2D) member of the broader class of metal organochalcogenide (MOC) family, has gained a renewed interest as a novel class of hybrid organic-inorganic 2D semiconductors. AgSePh features multiple exciting properties such as narrow blue luminescence, in-plane anisotropy, large exciton binding energy, earth abundant elemental composition, and a scalable synthesis. In contrast to a 2D layered perovskites and transition metal chalcogenides, AgSePh has strong covalent bonding between organic and inorganic components, offering a unique platform for tuning excitonic properties. In this presentation, we will show a new family of AgSePh derivatives with introduced organic functional groups. These newly synthesized MOCs adopt 2D layered structures and exhibit improved optical properties, including higher photoluminescence quantum yields and longer luminescent lifetimes. We will discuss the effect of organic functionalization on the optical and electronic properties of AgSePh, and show the application of this knowledge toward designing new MOC compounds with improved capabilities.

Molecular design of 2D silver phenylselenide derivatives with improved optical properties

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.