HgSe

semiconductor

· HgSe

Mercury selenide (HgSe) is a narrow-bandgap II-VI semiconductor compound formed from mercury and selenium. It is primarily used in infrared (IR) detection and thermal imaging applications, where its ability to respond to mid- and long-wavelength infrared radiation makes it valuable for military, aerospace, and scientific instrumentation. HgSe is chosen for photodetectors and focal plane arrays in scenarios requiring sensitivity in the IR spectrum; it competes with alternatives like HgCdTe and InSb but offers distinct band alignment properties for specific wavelength windows.

infrared photodetectorsthermal imaging sensorsaerospace instrumentationIR focal plane arraysscientific research detectors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	41.17	GPa	—
↳	45.90	GPa	—
Poisson's Ratio(ν)	0.3800	-	—
Shear Modulus(G)2 entries	13.25	GPa	—
↳	13.44	GPa	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.661	kg/m³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.07000	eV	—
↳	0.000	eV	—
Dielectric Constant (Relative Permittivity)(εr)	25.33	-	—
Magnetic Moment(μB)	0.000	µB	—
Piezoelectric Modulus(eij)	0.9658	C/m²	—
Seebeck Coefficient(S)	-66.64	µV/K	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.01740	eV/atom	—
Formation Energy(ΔHf)2 entries	-0.2254	eV/atom	—
↳	0.00402	eV/atom	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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.

HgSe

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control