Ta1 Se2

semiconductor

· Ta1 Se2

Tantalum diselenide (Ta₁Se₂) is a layered transition metal dichalcogenide semiconductor with a structure similar to naturally occurring minerals in the TMD family. This material is primarily of research and development interest for emerging optoelectronic and nanoelectronic applications, including photodetectors, field-effect transistors, and thermoelectric devices, where its layer-dependent properties and tunable electronic characteristics offer potential advantages over conventional semiconductors and established alternatives like silicon or gallium arsenide.

photodetectors and imaging2D nanoelectronics researchthermoelectric energy conversionfield-effect transistorsflexible electronics prototypingoptoelectronic device development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	6,623.4	ksi	—
Shear Modulus(G)	4,812.4	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00920	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8050	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.

Ta1 Se2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control