NaInSe2

semiconductor
· NaInSe2

NaInSe₂ is a ternary semiconductor compound composed of sodium, indium, and selenium, belonging to the family of chalcogenide semiconductors with layered crystal structures. This material is primarily of research and development interest for optoelectronic and photovoltaic applications, where its tunable bandgap and ionic-electronic hybrid conductivity make it promising for next-generation solar cells, photodetectors, and light-emitting devices. While not yet commercialized at scale, NaInSe₂ represents an emerging alternative to conventional II-VI semiconductors, offering potential advantages in flexibility, non-toxicity, and cost-effectiveness compared to cadmium-based or lead halide perovskite systems.

thin-film photovoltaicsphotodetectors and sensorsoptoelectronic devicesresearch semiconductorssolar cell absorber layersflexible electronics

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
6,066.9
ksi
Poisson's Ratio(ν)
0.2400
-
Shear Modulus(G)
3,724.6
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.1816
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
2.800
eV
1.001
eV
Dielectric Constant (Relative Permittivity)(εr)2 entries
21.51
-
13.04
range 8.028–18.06median of 2 measurements
-
Magnetic Moment(μB)
0.000
µB
Piezoelectric Modulus(eij)
0.000
C/m²
Seebeck Coefficient(S)
-178.6
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)
-0.8457
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.
NaInSe2 — Properties & Data | MatWorld