Silver-bismuth-iodide (Ag-Bi-I) rudorffite hybrid materials havegained an immense interest in the research for a lead-free, chemically stable and low-cost absorber material in photovoltaic devices [1].These materials can be fabricated in the form of macroscopic crystals or as thin films,in which case they can be integrated into solar cells that show good photoconversion efficiency[2]. Fabricating AgBi-I in nanocrystal form couldfacilitate further their integration in the photovoltaic devices and enhance device performance due to size confinement effects. In our previous study, we successfully fabricated ligand-free Ag3BiI6nanoparticles in the form of aerosols [3]. Here, we report on thefabricationprocedure of 2D Ag-Bi-I nanomaterials in the colloidal form. The results of the structural and morphological investigation of the nanosheets will be presented, as well as reconstruction of the electronic levels of the Ag3BiI6nanoparticles from the combined UV-vis absorption andX-ray photoelectron spectroscopy data.In addition, an analysis that shows the relation between the positions of the bands in the Ag3BiI6nanosheet absorption spectra and the thickness of the nanosheet will be discussed.VIII International School and Conference on Photonics and HEMMAGINERO workshop : PHOTONICA2021 : book of abstracts; August 23-27, 2021; Belgrad
