Se2 Ta4

semiconductor

· Se2 Ta4

Se₂Ta₄ is a layered transition metal chalcogenide semiconductor compound combining selenium and tantalum, representing an emerging material in the family of van der Waals heterostructures. This material is primarily of research and developmental interest for next-generation optoelectronic and electronic devices, where its layered crystal structure enables tunable bandgap properties and potential integration into flexible or two-dimensional device architectures. Relative to conventional bulk semiconductors, Se₂Ta₄ offers advantages in thin-film applications and may enable novel device concepts in photonics and nanoelectronics, though commercial-scale production and deployment remain limited.

Optoelectronic devices (experimental)Thin-film transistorsPhotovoltaic absorber layers2D heterostructure researchFlexible electronics (research stage)Photocatalysis applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	13,697.9	ksi	—
Shear Modulus(G)	7,383.4	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00250	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4450	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.

Se2 Ta4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control