Ho2 S1 O2

semiconductor

· Ho2 S1 O2

Holmium oxide sulfide (Ho₂S₁O₂) is a rare-earth compound semiconductor combining holmium with sulfur and oxygen, representing a mixed-anion material in the lanthanide family. This is primarily a research-phase compound with potential applications in optoelectronics and photonic devices, where rare-earth semiconductors are explored for their unique optical and electronic properties. The material's significance lies in its potential for mid-infrared light emission and high-refractive-index applications, though industrial adoption remains limited compared to established rare-earth oxides or III-V semiconductors.

rare-earth optoelectronicsphotonic researchmid-infrared emittershigh-refractive-index coatingsluminescent materialsexperimental semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	129.1	GPa	—
Shear Modulus(G)	71.43	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	3.155	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.461	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 S1 O2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control