Theory and experiment of optical absorption of platinum nanoparticles synthesized by gamma radiation.

Platinum nanoparticles were synthesized using the gamma radiolytic technique in an aqueous solution containing Platinum tetraammine chloride in presence of poly vinyl pyrrolidone, isopropanol, tetrahydrofuran and deionized water. The gamma irradiation was carried out in aCo gamma source chamber and the particle size was found to decrease from 4.88 to 3.