K2CuBiI6 — Properties & Data | MatWorld

K2CuBiI6

metal

· JVASP-106422· K2CuBiI6

K2CuBiI6 is a halide perovskite compound containing potassium, copper, bismuth, and iodine—a member of the emerging double-perovskite family being investigated for optoelectronic and photovoltaic applications. This is primarily a research-phase material rather than an established industrial compound; it is being studied for its potential in next-generation solar cells, light-emitting devices, and radiation detection due to its tunable bandgap and stability advantages over lead-based perovskites. The bismuth-copper framework offers promise as a less-toxic alternative to conventional perovskites while maintaining semiconducting properties relevant to energy conversion.

Experimental photovoltaic devicesHalide perovskite researchLead-free solar cellsRadiation detectionOptoelectronic semiconductorsMaterials screening studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1638	lb/in³	DFT · OptB88vdW

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3200	eV	DFT · OptB88vdW
↳	0.5890	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	9.596	-	DFT · OptB88vdW
↳	7.436	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	18.99	%	DFT · TBmBJ

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)	0.09180	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7610	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.

K2CuBiI6

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control