Patent ID: 9598785
Date: 2017-03-21
CPC Classifications: B01J,B82Y,C09K,C25D,Y10T

Claim:
1. A process of preparing a plurality of nanostructures, each having a base surface and a top surface, and being composed of at least three different target materials arranged layerwise across a thickness direction thereof such that said layers are exposed at a periphery of said nanostructure between said base surface and said top surface, at least one of said target materials being an electropolymerized polymer or a semiconductor material selected from the group consisting of CdTe, CdS, CdSe, ZnS, ZnO, GaAs, ZnTe, CdTeSe, GaAs, gallium phosphide, gallium nitride, TiO 2 , and TiS 2 , wherein at least one of said nanostructures comprises a polyaniline segment and a polypyrrole segment, the process comprising: depositing a blocking layer onto a first side of a porous membrane having pores of nanometric diameter, so as to substantially block said pores from said first side while leaving said pores open from a second side of said membrane; sequentially electrodepositing a first material and said at least two target materials into said open pores, to thereby obtain within said pores nanometric rods, each of said nanometric rods having a plurality of segments wherein any two adjacent segments are made of different materials; and etching said membrane and said first material, thereby obtaining the nanostructures.