Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions

Abstract We present the synthesis, crystal structures and optical properties of three thiostannates prepared by using 1-(2-aminoethyl)piperazine (AEPz) as structure directing agent. Two of the thiostannates are layered materials (AEPz-SnS-1 and AEPz:EtOH-SnS-1) consisting of [Sn3S7 2−]n sheets with...

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Autores principales:	Henrik S. Jeppesen, Peter Nørby, Jens Jakob Gammelgaard, Kasper Borup, Nina Lock
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0eb973c88336417d9006b8cbc21d7067
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spelling	oai:doaj.org-article:0eb973c88336417d9006b8cbc21d70672021-11-14T12:17:33ZExploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions10.1038/s41598-021-01329-92045-2322https://doaj.org/article/0eb973c88336417d9006b8cbc21d70672021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01329-9https://doaj.org/toc/2045-2322Abstract We present the synthesis, crystal structures and optical properties of three thiostannates prepared by using 1-(2-aminoethyl)piperazine (AEPz) as structure directing agent. Two of the thiostannates are layered materials (AEPz-SnS-1 and AEPz:EtOH-SnS-1) consisting of [Sn3S7 2−]n sheets with organic cations located in-between. The third compound is a molecular thiostannate (Sn2S6(AEPzH2)2) composed of dimeric Sn2S6 4− and AEPzH2 2+. In preparation of the layered compounds, the use of AEPz as the only solvent results in AEPz-SnS-1 with regular hexagonal pores and crystallographically disordered organic cations. In contrast, a mixture of AEPz and absolute ethanol gives AEPz:EtOH-SnS-1 with distorted hexagonal pores and ordered cations between the layers. The influence of cation order on the light absorption properties and the material thermal stability was investigated through thermal treatment of the layered compounds up to 200 °C. Both compounds show colour changes when heated, but cation order results in larger thermal stability. For AEPz-SnS-1, a decreased inter-layer distance and substantial loss of organic matter was observed when heated. However, pair distribution function analysis reveals that the local in-layer thiostannate structure of AEPz-SnS-1 remains unchanged. In contrast, AEPz:EtOH-SnS-1 does not undergo noticeable structural changes by the thermal treatment. All materials are optical semiconductors with band gaps of 3.0–3.1 eV.Henrik S. JeppesenPeter NørbyJens Jakob GammelgaardKasper BorupNina LockNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Henrik S. Jeppesen Peter Nørby Jens Jakob Gammelgaard Kasper Borup Nina Lock Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
description	Abstract We present the synthesis, crystal structures and optical properties of three thiostannates prepared by using 1-(2-aminoethyl)piperazine (AEPz) as structure directing agent. Two of the thiostannates are layered materials (AEPz-SnS-1 and AEPz:EtOH-SnS-1) consisting of [Sn3S7 2−]n sheets with organic cations located in-between. The third compound is a molecular thiostannate (Sn2S6(AEPzH2)2) composed of dimeric Sn2S6 4− and AEPzH2 2+. In preparation of the layered compounds, the use of AEPz as the only solvent results in AEPz-SnS-1 with regular hexagonal pores and crystallographically disordered organic cations. In contrast, a mixture of AEPz and absolute ethanol gives AEPz:EtOH-SnS-1 with distorted hexagonal pores and ordered cations between the layers. The influence of cation order on the light absorption properties and the material thermal stability was investigated through thermal treatment of the layered compounds up to 200 °C. Both compounds show colour changes when heated, but cation order results in larger thermal stability. For AEPz-SnS-1, a decreased inter-layer distance and substantial loss of organic matter was observed when heated. However, pair distribution function analysis reveals that the local in-layer thiostannate structure of AEPz-SnS-1 remains unchanged. In contrast, AEPz:EtOH-SnS-1 does not undergo noticeable structural changes by the thermal treatment. All materials are optical semiconductors with band gaps of 3.0–3.1 eV.
format	article
author	Henrik S. Jeppesen Peter Nørby Jens Jakob Gammelgaard Kasper Borup Nina Lock
author_facet	Henrik S. Jeppesen Peter Nørby Jens Jakob Gammelgaard Kasper Borup Nina Lock
author_sort	Henrik S. Jeppesen
title	Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
title_short	Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
title_full	Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
title_fullStr	Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
title_full_unstemmed	Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
title_sort	exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0eb973c88336417d9006b8cbc21d7067
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Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions

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