Abstract
We fabricated periodic structures of CdS using honeycomb films consisting of an amphiphilic copolymer as a template. The honeycomb film using an amphiphilic copolymer was fabricated on the water surface under highly humid condition and was then transferred onto a solid substrate. The pore size in the honeycomb film was ca. 5 μm. The CdS nanoparticles were synthesized using a gelatin as an inhibitor of rapid nuclear growth and then the gelatin was removed by decomposition using an enzyme. The CdS particles were introduced into pores of the honeycomb film by casting, dipping, and electrochemical deposition. Dipping the honeycomb film into CdS suspension under ultrasonication, periodic deposition of CdS particles in the honeycomb holes was achieved. The CdS -honeycomb film composite was calcinated at 450°C for 30 min in order to remove organic moiety. After calcination, periodic arrangement of porous CdS dots with diameter of 3–5 μm was partially formed. The CdS dots are applicable to photoelectrochemical and optical devices such as a photodiode.
Published Version
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