Coating of SHP material over glass surface
Surface modifying agents used for coating the cotton fabric in
THF were also used to develop a thin film on the glass surface by
spin coater. This was done by placing 2–3 drops of the respective
solution/suspension on the glass substrate and spinned at
3000 rpm: (i) 2% copper stearate in THF, (ii) 0.5% PVC in THF,
(iii) a mixture containing both 2% copper stearate and 0.5% PVC in
THF, (iv) 1% Fe2O3 blend and (v) 1% Cr2O3 blend. Thus obtained thin
films were air dried and stored in vacuum.