Transition metal Transmittance

If an iron compoimd (up to 0.005 wt.%) is injected to pure PSF, fight transmittance will be decreased by 20 - 30 imits, whereas subsequent injection of SHP reduces this effect significantly. On the other hand, PSF color may be stabilized in tests simulating processing of phosphorus-containing transition metal complexes by additives. 

The fabrication process of vanadium oxide (VO2) has also been studied using RBS/C. Since optieal and electrical properties of VO2 are dramatically changed at 68°C due to phase transition, VO2 is regarded as one of the candidates for thermally activated electronic or optical switching devices for optieal fibers or sensors. To obtain the desired properties, the development of the fabrication process for very thin films, without crystalline defects on various substrates, is required. Single-crystalline VO2 thin films on (0001) plane of a sapphire substrate have been synthesized by a laser ablation method. The quality of VO2 was examined by X-ray diffraction and RBS/C method. The eleetrieal resistanee and the optical transmittance of the VO2 film were measured under inereasing and deereasing temperatures. At a temperature of 68 °C, an abrupt transition of resistanee from metal to... 

Mlyuka, N.R., Niklasson, G.A., and Granqvist, C.G. (2009) Mg doping of thermochromic VO2 films enhances the optical transmittance and decreases the metal-insulator transition temperature. Appl Phys. Lett, 95,171909. 

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