InPS4

semiconductor
· InPS4

InPS₄ is an indium phosphorus sulfide compound belonging to the family of III-V and mixed anion semiconductors. This material is primarily of research interest for optoelectronic and photovoltaic applications, where its direct bandgap and layered crystal structure offer potential advantages in light emission, detection, and energy conversion devices. InPS₄ represents an emerging alternative to more conventional semiconductors, with potential relevance in next-generation solar cells, photodetectors, and integrated photonics where tunable electronic properties and lattice engineering are valuable.

Photovoltaic devicesPhotodetectorsOptoelectronics researchIntegrated photonicsTwo-dimensional materials applicationsSemiconductor research and development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
25.60
GPa
Poisson's Ratio(ν)
0.2700
-
Shear Modulus(G)
15.50
GPa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
3.099
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
3.120
eV
2.329
eV
Dielectric Constant (Relative Permittivity)(εr)2 entries
11.40
-
7.819
range 6.011–9.627median of 2 measurements
-
Magnetic Moment(μB)
0.000
µB
Piezoelectric Modulus(eij)2 entries
0.06830
C/m²
0.5078
C/m²
Piezoelectric Stress Tensor(eij)
Matrix (redacted)
C/m²
Seebeck Coefficient(S)
-176.9
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)
-0.4039
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.