K2TiCu2S4 — Properties & Data | MatWorld

K2TiCu2S4

Name: K2TiCu2S4
Brand: MatWorld

semiconductor

· K2TiCu2S4

K2TiCu2S4 is a ternary sulfide semiconductor compound containing potassium, titanium, and copper elements. This material is primarily of research interest rather than established industrial use, belonging to the family of mixed-metal chalcogenides being investigated for photovoltaic, thermoelectric, and optoelectronic applications where conventional semiconductors face limitations in cost or performance. The combination of earth-abundant elements (copper and sulfur) with tunable band gap properties makes it a candidate for next-generation energy conversion devices, though development remains in the exploratory phase.

photovoltaic researchthin-film solar cellsthermoelectric devicesoptoelectronic sensorsmaterials screening studiessulfide semiconductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1173	lb/in³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.649	eV	DFT · OptB88vdW
↳	2.040	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.659	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.177	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

Export Control

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.

K2TiCu2S4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control