C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 33/02 (2006.01) C08K 3/12 (2006.01) C08K 3/24 (2006.01) C08K 13/02 (2006.01) C08L 29/04 (2006.01) G11C 13/04 (2006.01)
Patent
CA 2140001
Cr (VI) and Fe (III) metal ion doped photosensitive polymer materials are used as holographic recording medium and to make optical waveguides. To fabricate the metal ion doped photosensitive polymer materials, 20 grams of poly(acrylic acid) /7 grams of poly(vinyl alcohol) are dissolved in 100 ml of deionized water pre-heated at a temperature of about 60°C. Ammonium or potassium dichromate (0.2 to 2.2 wt.%)/ferric chloride (0.5 to 7 wt.%) are added to the aqueous polymer solution. The aqueous polymer solution is stirred at a temperature of approximately 20°C until a uniform mixture is obtained. The stirred aqueous polymer solution is gravity settled or a substrate is spin coated with this solution which is then allowed to dry at a temperature of 20°C and a relative humidity of 35-45% to obtain the metal ion doped photosensitive polymer material.
Changkakoti Rupak
Lessard Roger A.
Manivannan Gurusamy
Goudreau Gage Dubuc
Universite Laval
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