RbGeI3 — Properties & Data | MatWorld

RbGeI3

ceramic

· RbGeI3

RbGeI3 is a halide perovskite ceramic composed of rubidium, germanium, and iodine—a compound within the family of lead-free perovskites being explored for optoelectronic and photovoltaic applications. While primarily a research material rather than an established commercial product, it is investigated as a potential absorber layer in next-generation solar cells and radiation detection devices, where its halide perovskite structure offers tunable bandgap and ionic conductivity properties. Engineers consider this material class as a lead-free alternative to traditional methylammonium lead iodide perovskites, motivated by environmental and regulatory concerns while seeking improved stability and performance in light-harvesting and sensing applications.

perovskite solar cellsradiation detectionoptoelectronic deviceslead-free photovoltaicsthin-film semiconductorsresearch materials

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	18.05	GPa	DFT
↳	20.67	GPa	DFT · OptB88vdW
↳	18.05	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.7936	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2600	-	DFT · OptB88vdW
↳	0.2570	-	DFT · PBE
Shear Modulus(G)3 entries	10.47	GPa	DFT
↳	12.70	GPa	DFT · OptB88vdW
↳	10.47	GPa	DFT · PBE

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
Density(ρ)	4.358	kg/m³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions
Band Gap(Eg)	2.132	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	22.50	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.07790	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8184	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.

RbGeI3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental