Vapor Phase Synthesis of SnS Facilitated by Ligand-Driven 'Launch Vehicle' Effect in Tin Precursors
| Autor: | Shashank Mishra, Ufuk Atamtürk, Veronika Brune, Sanjay Mathur |
|---|---|
| Přispěvatelé: | IRCELYON-C'Durable (CDURABLE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Pharmaceutical Science chemistry.chemical_element Organic chemistry 02 engineering and technology Chemical vapor deposition 010402 general chemistry 01 natural sciences Article Analytical Chemistry chemical vapor deposition chemistry.chemical_compound QD241-441 Phase (matter) Drug Discovery Molecule Physical and Theoretical Chemistry Homoleptic Thin film Ligand tin sulfide single-crystal structure [CHIM.CATA]Chemical Sciences/Catalysis 021001 nanoscience & nanotechnology [SDE.ES]Environmental Sciences/Environmental and Society 0104 chemical sciences tertiary butyl sulfide Crystallography chemistry Chemistry (miscellaneous) single-source precursor Molecular Medicine 0210 nano-technology Tin Stoichiometry |
| Zdroj: | Molecules Molecules, 2021, 26 (17), ⟨10.3390/molecules26175367⟩ Molecules, Vol 26, Iss 5367, p 5367 (2021) Volume 26 Issue 17 |
| DOI: | 10.3390/molecules26175367⟩ |
| Popis: | Extraordinary low-temperature vapor-phase synthesis of SnS thin films from single molecular precursors is attractive over conventional high-temperature solid-state methods. Molecular-level processing of functional materials is accompanied by several intrinsic advantages such as precise control over stoichiometry, phase selective synthesis, and uniform substrate coverage. We report here on the synthesis of a new heteroleptic molecular precursor containing (i) a thiolate ligand forming a direct Sn-S bond, and (ii) a chelating O^N^N-donor ligand introducing a “launch vehicle”-effect into the synthesized compound, thus remarkably increasing its volatility. The newly synthesized tin compound [Sn(SBut)(tfb-dmeda)] 1 was characterized by single-crystal X-ray diffraction analysis that verified the desired Sn:S ratio in the molecule, which was demonstrated in the direct conversion of the molecular complex into SnS thin films. The multi-nuclei (1H, 13C, 19F, and 119Sn) and variable-temperature 1D and 2D NMR studies indicate retention of the overall solid-state structure of 1 in the solution and suggest the presence of a dynamic conformational equilibrium. The fragmentation behavior of 1 was analyzed by mass spectrometry and compared with those of homoleptic tin tertiary butyl thiolates [Sn(SBut)2] and [Sn(SBut)4]. The precursor 1 was then used to deposit SnS thin films on different substrates (FTO, Mo-coated soda-lime glass) by CVD and film growth rates at different temperatures (300–450 °C) and times (15–60 min), film thickness, crystalline quality, and surface morphology were investigated. |
| Databáze: | OpenAIRE |
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