Publications scientifiques
Kevin I.Y. Ketchemen* (Auteur correspondant)
Autres affiliations : Technische Universität Dresden
Peter T. Ndifon
Vaidehi Lapalikar
Eduardo Carrillo‐Aravena
Michael Ruck
Autres affiliations : Technische Universität Dresden
ChemistryOpen
Abstract In search of a suitable single‐source precursor for the deposition of nanostructured PbS thin films at moderate temperatures under ambient conditions, we have synthesized the ligand N ‐(thiomorpholine‐4‐carbothioyl)benzamide and its corresponding lead(II) complex. The structures of both compounds were determined by single‐crystal X‐ray diffraction. In the complex, two ligands coordinate to a lead(II) atom in hemi‐directed geometry through S and O atoms. Secondary intermolecular Pb⋅⋅⋅S interactions group the complexes into pairs. As bulk powders, both the ligand and complex show nominal composition and purity as evidenced by elemental analysis, 1 H NMR and IR spectroscopy. Thermal analysis of the lead(II) complex was carried out to understand its thermal decomposition behaviour for establishing a thin film fabrication protocol. Thin films of phase‐pure PbS were fabricated using this new molecular precursor at the comparatively low annealing temperature of 250 °C. The film showed nanoparticles with cuboidal morphology and a blue‐shifted optical absorption.
