Rb4 Sn4 Br12

semiconductor

· Rb4 Sn4 Br12

Rb₄Sn₄Br₁₂ is a halide perovskite semiconductor compound composed of rubidium, tin, and bromine elements. This material belongs to the family of metal halide perovskites, which are primarily investigated in research contexts for optoelectronic applications due to their tunable bandgap, solution processability, and potential for low-cost fabrication. Tin-based halide perovskites are of particular interest as lead-free alternatives to conventional lead halide perovskites, addressing toxicity concerns while maintaining semiconducting properties suitable for next-generation photovoltaic and light-emitting devices.

perovskite photovoltaics (research)lead-free semiconductorsoptoelectronic devicesthin-film solar cellslight-emitting devices (experimental)materials screening for bandgap engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	19.64	GPa	—
Shear Modulus(G)	9.207	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.432	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.283	eV/atom	—

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

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.

Rb4 Sn4 Br12

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control