THE 2-MINUTE RULE FOR INFRARED OPTICAL

 5a]. The absorption edge for samples VT400 and VT700 happened at ~ 503 nm and ~ 470 nm. Then again, the transmittance reduced a little bit with expanding substrate temperature from the NIR spectra variety, which can be attributed to the large particle dimensions and lack of porosity for VT700. Figure 5b shows the reflectance spectra fo