K4 Te2 Br12

semiconductor

· K4 Te2 Br12

K4Te2Br12 is a mixed-halide tellurium compound belonging to the family of halide perovskites and related semiconductors. This is primarily a research material under investigation for optoelectronic and photovoltaic applications, valued for its tunable bandgap and potential for solution-processed device fabrication. Interest in this compound stems from the broader halide perovskite family's promise for low-cost, high-efficiency light-emitting and light-harvesting devices, though practical deployment remains limited to laboratory demonstrations.

perovskite solar cells (experimental)optoelectronic devices (research)light-emitting diodes (developmental)photonic absorbers (laboratory scale)halide semiconductor researchthin-film device materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	16.41	GPa	—
Shear Modulus(G)	7.867	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.135	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.082	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.

K4 Te2 Br12

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control