KGeBr3 — Properties & Data | MatWorld

KGeBr3

ceramic

· KGeBr3

KGeBr3 is a halide perovskite ceramic compound belonging to the ABX3 family of materials, where potassium (K) occupies the A-site, germanium (Ge) the B-site, and bromine (Br) the X-site. This material is primarily of research and development interest rather than established industrial production, studied for its potential in optoelectronic and photovoltaic applications due to the semiconducting properties typical of germanium-based perovskites. Engineers investigating lead-free alternatives for solar cells, radiation detectors, or scintillation devices may evaluate KGeBr3 and related halide perovskites, as these compounds offer tunable bandgaps and potential cost advantages over traditional inorganic semiconductors, though stability and scalability remain active research challenges.

lead-free perovskite solar cellsradiation detectionoptoelectronic devicesscintillation materialssemiconductor researchphotovoltaic prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,007.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3400	-	DFT · OptB88vdW
Shear Modulus(G)	776	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1288	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.913	eV	DFT · OptB88vdW
↳	3.948	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	40.25	-	DFT · OptB88vdW
↳	6.789 range 3.961–9.618median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.407	-	DFT · OptB88vdW
↳	3.420	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2210	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00347	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000956	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-209.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	380.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.05000	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.120	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.

KGeBr3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental