Si2 Se4

semiconductor

· Si2 Se4

Si₂Se₄ is a layered semiconductor compound composed of silicon and selenium, belonging to the family of IV-VI semiconductors with potential applications in optoelectronic and photovoltaic devices. This material remains primarily in research and development stages, where it is being investigated for its tunable bandgap, light-absorption properties, and potential use in thin-film solar cells, infrared detectors, and next-generation semiconductor devices. Compared to more established semiconductors like silicon or gallium arsenide, layered Si-Se compounds offer advantages in flexibility, scalability of synthesis, and compatibility with low-temperature fabrication processes, making them attractive for emerging flexible electronics and heterojunction applications.

research semiconductorsthin-film photovoltaicsinfrared detectorsoptoelectronic devicesflexible electronicsheterojunction materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	18.00	GPa	—
Shear Modulus(G)	10.64	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.737	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3710	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.

Si2 Se4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control