V1 O2

semiconductor
· V1 O2

VO2 (vanadium dioxide) is a transition metal oxide semiconductor that exhibits a sharp metal-insulator transition near room temperature, making it a thermochromic material with dramatic changes in electrical and optical properties. This material is primarily investigated for smart window applications, thermal regulation coatings, and infrared sensing devices, where its ability to switch between insulating and metallic states enables dynamic control of heat transmission and electromagnetic radiation. VO2 is notable for its potential in energy-efficient building technologies and adaptive thermal management systems, though it remains largely in research and early commercial phases compared to more established semiconductor platforms.

smart windows and glazingthermal regulation coatingsinfrared sensorsphase-change devicesenergy-efficient building materialsoptical switching applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
10,519.3
range 9,567.7–11,470.9median of 2 measurements
ksi—
Shear Modulus(G)
8,234.7
range 7,571–8,898.5median of 2 measurements
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.05205
range 0.02760–0.07650median of 2 measurements
eV—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
-2.340
range -2.346–-2.333median of 2 measurements
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.