In2HgTe4

ceramic
· In2HgTe4

In2HgTe4 is a quaternary semiconductor ceramic compound belonging to the II-VI semiconductor family, combining indium, mercury, and tellurium elements. This material is primarily investigated in research contexts for infrared detection and optoelectronic applications, where its narrow bandgap and high atomic number elements enable sensitivity in the mid- to far-infrared spectrum. Engineers consider this compound for specialized sensing and thermal imaging systems where conventional semiconductors are insufficient, though it remains less mature than established alternatives like HgCdTe and requires careful handling due to mercury toxicity.

infrared detectorsthermal imaging sensorsresearch optoelectronicssemiconductor devicescryogenic applicationsspectroscopy systems

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
2,874.8
ksi
Shear Modulus(G)
1,759.1
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.2234
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.4040
eV
Dielectric Constant (Relative Permittivity)(εr)2 entries
24.16
-
18.23
range 16.20–20.25median of 2 measurements
-
Magnetic Moment(μB)
0.000
µB
Piezoelectric Modulus(eij)2 entries
0.06826
C/m²
0.5982
C/m²
Piezoelectric Stress Tensor(eij)
Matrix (redacted)
C/m²
Seebeck Coefficient(S)
-84.31
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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom
Formation Energy(ΔHf)
-0.2213
eV/atom
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

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.