Pa2 P4

semiconductor

· Pa2 P4

Pa₂P₄ is a phosphide semiconductor compound composed of protactinium and phosphorus, representing a rare earth/actinide phosphide material primarily of research interest rather than established industrial production. This material belongs to the family of transition metal phosphides, which are investigated for potential applications in high-temperature electronics, neutron detection, and specialized optoelectronic devices due to their wide bandgap characteristics and thermal stability. Given the scarcity and radioactive nature of protactinium, Pa₂P₄ remains largely experimental; it serves as a probe for understanding actinide compound physics and may inform future designs of radiation-hardened semiconductors or specialized nuclear instrumentation.

research/experimental semiconductorsnuclear instrumentationradiation-hardened electronicshigh-temperature semiconductorsactinide material studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000800	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7800	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.

Pa2 P4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control