VO2

semiconductor
· VO2

Vanadium dioxide (VO2) is a transition metal oxide semiconductor that exhibits a dramatic metal-insulator transition (MIT) near room temperature, shifting from insulating monoclinic to conducting tetragonal crystal structure. This phase-change behavior makes it valuable for smart windows and thermal management coatings that dynamically respond to temperature, as well as emerging applications in reconfigurable electronics and infrared optics where its optical and electrical properties can be reversibly switched. While primarily in research and early commercialization phases, VO2 offers a platform for functional materials where passive thermal response or electronically-tuned properties provide advantages over static alternatives.

smart windows and glazingthermal management coatingsinfrared optical devicesphase-change electronicsreconfigurable metamaterialstemperature-responsive sensors

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
6,117.4
ksi—
↳
10,148.3
ksi—
Exfoliation Energy(Eexf)
58.83
meV/atom—
Poisson's Ratio(ν)
0.2500
-—
Shear Modulus(G)2 entries
3,327.5
ksi—
↳
5,816
ksi—
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
Density(ρ)
0.1482
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.1200
eV—
↳
0.000
eV—
Dielectric Constant (Relative Permittivity)(εr)
971.9
-—
Magnetic Moment(μB)
4.994
µB—
Piezoelectric Modulus(eij)
2.969
C/m²—
Seebeck Coefficient(S)
2.963
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)
0.09100
eV/atom—
Formation Energy(ΔHf)2 entries
-2.466
eV/atom—
↳
-2.469
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.
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.