IMPLANTATION OF TI AND N INTO SODA LIME GLASS TO MINIMIZE SOLAR LOAD AND REFLECTIVITY

Soda lime glass was given two types of implantations; Ti followed by N to doses up to 4.5 x 10(17) cm(-2) to reduce solar load and IR transm ission, and Ti to doses of 8.2 x 10(16) cm(-2) to reduce reflectivity of visible light. Analysis of the Ti + N implant distributions by RES and XPS revealed profiles which closely followed each other as designe d by the selection of implant energies. XPS and X-ray diffraction also confirmed the existence of B1-type, cubic TIN phase at doses greater than 9 x 10(16) cm(-2). Optical measurements showed that the fraction of infrared radiation reflected can be increased by almost a factor of 4 compared to an increase of 1.8 in the visible region. The percentag e of the total solar energy rejected reached 80% at the highest dose, indicating that the buried TIN layer is highly effective in reducing s olar energy transmission. The reflection of light in the visible regio n can be decreased by up to 43% by implantation of 150 keV Ti+ to a do se of 8.2 x 10(16) cm(-2). The change is most effective at 0 degrees i ncidence and increases with dose.