Maiti, SonamSonamMaitiMaiti, SantanuSantanuMaitiMaier, AndreAndreMaierBanerjee, RupakRupakBanerjeeShen, ChenChenShenMurphy, Bridget M.Bridget M.MurphyScheele, MarcusMarcusScheeleSchreiber, FrankFrankSchreiber2025-08-312025-08-312019-01-0110.1039/c9cc01758e2-s2.0-85064587455https://repository.iitgn.ac.in/handle/IITG2025/2343930946404We report on the in situ monitoring of the formation of conductive superlattices of Cu<inf>1.1</inf>S nanodiscs via cross-linking with semiconducting cobalt 4,4′,4′′,4′′′-tetraaminophthalocyanine (CoTAPc) molecules at the liquid/air interface by real-time grazing incidence small angle X-ray scattering (GISAXS). We determine the structure, symmetry and lattice parameters of the superlattices, formed during solvent evaporation and ligand exchange on the self-assembled nanodiscs. Cu<inf>1.1</inf>S nanodiscs self-assemble into a two-dimensional hexagonal superlattice with a minor in-plane contraction (∼0.2 nm) in the lattice parameter. A continuous contraction of the superlattice has been observed during ligand exchange, preserving the initial hexagonal symmetry. We estimate a resultant decrement of about 5% in the in-plane lattice parameters. The contraction is attributed to the continuous replacement of the native oleylamine surface ligands with rigid CoTAPc. The successful cross-linking of the nanodiscs is manifested in terms of the high electrical conductivity observed in the superlattices. This finding provides a convenient platform to understand the correlation between the structure and transport of the coupled superstructures of organic and inorganic nanocrystals of anisotropic shape.en-USfalseArticle1364548X4805-4808201934WOS:000468003200010