Figure 10

Thermochromic signatures & transition temperatures of the various multi-layered V₂O₅(20 nm)/pure V(Variable thickness)/V₂O₅ (40 nm)deposited onto borosilicate glass substrate. (a) Their optical transmission at 2500 nm during the cooling & heating cycles. (b) The derivative of the optical transmission at 2500 nm during the cooling & heating cycles of sample 2 (Intermediate V layer thickness = 7 nm). (c) The derivative of the optical transmission at 2500 nm during the cooling & heating cycles of sample 3 (Intermediate V layer thickness = 12 nm),