Photosensitive metal nanoparticle and method of forming conductive pattern using the same
a metal nanoparticle and conductive pattern technology, applied in the field of photosensitive metal nanoparticles and methods of forming conductive patterns, can solve the problems of difficult to prepare metal nanoparticle films or patterns in a large size, difficult to control and arrange such fine particles efficiently, and difficult to overcom
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example 1
Introduction of Photosensitive group to Surface of Gold Nanoparticles
[0051]0.2 g of the gold nanoparticles prepared in Preparative Example 1 was dispersed in 5 g of cystamine dihydrochloride, and stirred by use of a magnetic bar for 2 hours, filtered, and then washed with pure water and filtered, to obtain gold nanoparticles each having a surface substituted with amine groups. While the pH being maintained at 7.2-7.4 in a buffer solution of 0.05 M 4-(2-hydroxyethyl)-1-piperrazineethanesulfonic acid (HEPES), the gold nanoparticles were reacted with acrylic acid (0.01 M) for 4 hours, in the presence of 1-ethyl-3(3-dimethylaminopropyl)carbodiimide (EDC) as a condensation reaction agent. After the completion of the reaction, resulting metal nanoparticles were filtered, washed twice with THF, and dried under a reduced pressure, to yield photosensitive metal nanoparticles having acryl moieties connected through an amide group on the surface thereof.
example 2
Introduction of Photosensitive group to Surface of Silver Nanoparticles
[0052]Silver nanoparticles having acryl moieties connected through an amide group on the surface thereof were obtained in the same manner as in Example 1, with the exception that 0.2 g of the silver nanoparticles prepared in Preparative Example 2 was used, instead of the gold nanoparticles.
example 3
Introduction of Photosensitive group to Surface of Copper Nanoparticles
[0053]Copper nanoparticles having acryl moieties connected through an amide group on the surface thereof were obtained in the same manner as in Example 1, with the exception that 0.2 g of the copper nanoparticles prepared in Preparative Example 3 was used, instead of the gold nanoparticles.
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