Tin selenide

Tin selenide
Names
	Other names Tin(II) selenide
Identifiers
CAS Number	1315-06-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	4937309;
ECHA InfoCard	100.013.871
EC Number	215-257-6;
PubChem CID	6432049;
UNII	M1PQ79637Y ;
	InChI InChI=1S/Se.Sn Key: MFIWAIVSOUGHLI-UHFFFAOYSA-N; InChI=1S/Se.Sn;
	SMILES [Se]=[Sn];
Properties
Chemical formula	SnSe
Molar mass	197.67 g/mol
Appearance	steel gray odorless powder
Density	5.75 g/cm3
Melting point	861 °C (1,582 °F; 1,134 K)
Solubility in water	negligible
Band gap	0.9 eV (indirect), 1.3 eV (direct)
Structure
Crystal structure	Orthorhombic, oP8
Space group	Pnma, No. 62
Lattice constant	a = 4.4 Å, b = 4.2 Å, c = 11.5 Å
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-88.7 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Precautionary statements	P260, P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P314, P321, P330, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	2 1 1
Safety data sheet (SDS)	https://www.ltschem.com/msds/SnSe.pdf
Related compounds
Other anions	Tin(II) oxide; Tin(II) sulfide; Tin telluride
Other cations	Carbon monoselenide; Silicon monoselenide; Germanium selenide; Lead selenide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Tin selenide, also known as stannous selenide, is an inorganic compound with the formula Sn Se. Tin(II) selenide is a typical layered metal chalcogenide^[4] as it includes a group 16 anion (Se²⁻) and an electropositive element (Sn²⁺), and is arranged in a layered structure. Tin(II) selenide is a narrow band-gap (IV-VI) semiconductor structurally analogous to black phosphorus. It has received considerable interest for applications including low-cost photovoltaics, and memory-switching devices.

Because of its low thermal conductivity as well as reasonable electrical conductivity, tin selenide is one of the most efficient thermoelectric materials.^[5]^[6]

^ https://www.rsc.org/suppdata/c7/ra/c7ra05819e/c7ra05819e1.pdf
^ ^a ^b ^c Cite error: The named reference wire was invoked but never defined (see the help page).
^ Persson, Kristin (2014). "Materials Data on SnSe (SG:62) by Materials Project". LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). doi:10.17188/1284598. Retrieved 2020-08-07.
^ Zhang, Chunli; Yin, Huanhuan; Han, Min; Dai, Zhihui; Pang, Huan; Zheng, Yulin; Lan, Ya-Qian; Bao, Jianchun; Zhu, Jianmin (2014). "Two-Dimensional Tin Selenide Nanostructures for Flexible All-Solid-State Supercapacitors". ACS Nano. 8 (4): 3761–70. doi:10.1021/nn5004315. PMID 24601530.
^ Zhao, L. D.; Lo, S. H.; Zhang, Y; Sun, H; Tan, G; Uher, C; Wolverton, C; Dravid, V. P.; Kanatzidis, M. G. (2014). "Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals". Nature. 508 (7496): 373–7. Bibcode:2014Natur.508..373Z. doi:10.1038/nature13184. PMID 24740068. S2CID 205238132.
^ Kang, Joon Sang; Wu, Huan; Li, Man; Hu, Yongjie (2019). "Intrinsic Low Thermal Conductivity and Phonon Renormalization Due to Strong Anharmonicity of Single-Crystal Tin Selenide". Nano Letters. 19 (8): 4941–4948. Bibcode:2019NanoL..19.4941K. doi:10.1021/acs.nanolett.9b01056. PMID 31265307. S2CID 206750455.

[1] ttps://www.rsc.org/suppdata/c7/ra/c7ra05819e/c7ra05819e1.pdf

[wire-2] Cite error: The named reference wire was invoked but never defined (see the help page).

[MaterialsProject_SnSe-3] Persson, Kristin (2014). "Materials Data on SnSe (SG:62) by Materials Project". LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). doi:10.17188/1284598. Retrieved 2020-08-07.

[r1-4] Zhang, Chunli; Yin, Huanhuan; Han, Min; Dai, Zhihui; Pang, Huan; Zheng, Yulin; Lan, Ya-Qian; Bao, Jianchun; Zhu, Jianmin (2014). "Two-Dimensional Tin Selenide Nanostructures for Flexible All-Solid-State Supercapacitors". ACS Nano. 8 (4): 3761–70. doi:10.1021/nn5004315. PMID 24601530.

[:0-5] Zhao, L. D.; Lo, S. H.; Zhang, Y; Sun, H; Tan, G; Uher, C; Wolverton, C; Dravid, V. P.; Kanatzidis, M. G. (2014). "Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals". Nature. 508 (7496): 373–7. Bibcode:2014Natur.508..373Z. doi:10.1038/nature13184. PMID 24740068. S2CID 205238132.

[:phononrenormal-6] Kang, Joon Sang; Wu, Huan; Li, Man; Hu, Yongjie (2019). "Intrinsic Low Thermal Conductivity and Phonon Renormalization Due to Strong Anharmonicity of Single-Crystal Tin Selenide". Nano Letters. 19 (8): 4941–4948. Bibcode:2019NanoL..19.4941K. doi:10.1021/acs.nanolett.9b01056. PMID 31265307. S2CID 206750455.

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