Universität zu Köln

Atamturk, Ufuk, Brune, Veronika ORCID: 0000-0001-5909-621X, Mishra, Shashank ORCID: 0000-0003-2846-4221 and Mathur, Sanjay (2021). Vapor Phase Synthesis of SnS Facilitated by Ligand-Driven Launch Vehicle Effect in Tin Precursors. Molecules, 26 (17). BASEL: MDPI. ISSN 1420-3049

Full text not available from this repository.

Abstract

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 (H-1, C-13, F-19, and Sn-119) 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 degrees C) and times (15-60 min), film thickness, crystalline quality, and surface morphology were investigated.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Atamturk, Ufuk UNSPECIFIED UNSPECIFIED UNSPECIFIED Brune, Veronika UNSPECIFIED orcid.org/0000-0001-5909-621X UNSPECIFIED Mishra, Shashank UNSPECIFIED orcid.org/0000-0003-2846-4221 UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-580282
DOI:	10.3390/molecules26175367
Journal or Publication Title:	Molecules
Volume:	26
Number:	17
Date:	2021
Publisher:	MDPI
Place of Publication:	BASEL
ISSN:	1420-3049
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SULFIDE THIN-FILMS; SINGLE-SOURCE PRECURSORS; STABLE GERMYLENES; TIN(II) COMPOUNDS; DEPOSITION; CVD; GE; STANNYLENES; PRESSURE; GERMANIUM(II) Multiple languages Biochemistry & Molecular Biology; Chemistry, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58028