Ho2 S2 I2

semiconductor

· Ho2 S2 I2

Ho₂S₂I₂ is a rare-earth halide sulfide compound combining holmium with sulfur and iodine, belonging to the family of mixed-anion semiconductors. This is primarily a research-phase material studied for its potential optoelectronic and photonic properties; it has not achieved widespread commercial adoption. The material's interest lies in exploring rare-earth semiconductor chemistry for next-generation photonic devices and as a platform for understanding how mixed anionic systems (sulfides + halides) can engineer bandgap and luminescence properties.

research semiconductorsphotonic materials developmentrare-earth compound studiesoptical emission researchoptoelectronic prototypingmaterials chemistry exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.567	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.898	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.

Ho2 S2 I2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control