• Nyamen, Linda Dyorisse
• Ndifon, Peter T.
• Ketchemen Youssou Mrsc, Idriss Kevin
• Lapalikar, Vaidehi
• Carrilloaravena, Eduardo
• Ruck, Michael

Abstract

<jats:title>Abstract</jats:title><jats:p>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 <jats:italic>N</jats:italic>‐(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, <jats:sup>1</jats:sup>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.</jats:p>

Topics

• nanoparticle
• Deposition
• compound
• phase
• thin film
• thermal analysis
• annealing
• Nuclear Magnetic Resonance spectroscopy
• thermal decomposition
• infrared spectroscopy
• elemental analysis