KSn2I5 — Properties & Data | MatWorld

KSn2I5

ceramic

· JVASP-12539· KSn2I5

KSn2I5 is an inorganic ceramic compound in the halide perovskite family, combining potassium, tin, and iodine in a layered crystalline structure. This material is primarily investigated in research contexts for optoelectronic and photovoltaic applications, particularly as a lead-free alternative in next-generation solar cells and light-emitting devices where toxicity concerns limit lead-halide perovskites. Its notable advantage over conventional perovskites lies in the substitution of tin for lead, addressing environmental and regulatory constraints while maintaining potential for tunable bandgap and solution-based processing.

perovskite solar cellslead-free photovoltaicsoptoelectronic devicesresearch/experimental materialsphoton conversionthin-film semiconductors

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.988	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.509	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.450	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00124	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00153	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-138.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	355.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00400	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7884	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

KSn2I5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental