Sr4 S3 O1

semiconductor

· Sr4 S3 O1

Sr₄S₃O is an oxysulfide semiconductor compound combining strontium, sulfur, and oxygen into a mixed-anion crystal structure. This is a research-phase material being investigated for optoelectronic and photocatalytic applications, belonging to the broader family of rare-earth and alkaline-earth oxychalcogenides that show promise for next-generation semiconductors. Sr₄S₃O and related oxysulfides are of interest to materials scientists developing alternatives to conventional semiconductors because their tunable bandgap and mixed anion chemistry can enable novel photocatalytic, photovoltaic, or light-emission properties not easily accessible in single-anion materials.

photocatalytic materials (research)semiconductor research compoundsoptoelectronic devices (experimental)photovoltaic absorbers (developmental)visible-light photocatalysisnext-generation thin-film electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	57.17	GPa	—
Shear Modulus(G)	39.76	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.176	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-2.373	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.

Sr4 S3 O1

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control