Self-assembly and spectroscopic fingerprints of photoactive pyrenyl tectons on hBN/Cu(111).

ABSTRACT: The controlled modification of electronic and photophysical properties of polycyclic aromatic hydrocarbons by chemical functionalization, adsorption on solid supports, and supramolecular organization is the key to optimize the application of these compounds in (opto)electronic devices. Here, we present a multimethod study comprehensively characterizing a family of pyridin-4-ylethynyl-functionalized pyrene derivatives in different environments. UV-vis measurements in toluene solutions revealed absorption at wavelengths consistent with density functional theory (DFT) calculations, while emission experiments showed a high fluorescence quantum yield. Scanning tunneling microscopy (STM) and spectroscopy (STS) measurements of the pyrene derivatives adsorbed on a Cu(111)-supported hexagonal boron

SUBMITTER: Zimmermann DM 

PROVIDER: S-EPMC7537405 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature