The application belongs to the field of
material chemistry and
molecular electronics, and discloses a preparation method of
gold nanorod assembly. The method comprises the following steps: providing a dispersion
system containing a plurality of gold nanorods in a
liquid medium; introducing a heterocyclic
assembly molecule anchored on the surface of the
gold nanorod into the dispersion
system, wherein the heterocyclic
assembly molecule contains a structural rigid aromatic heterocycle, a
sulfur-containing anchoring group forming a coordination bond with the
gold surface, and a group or atom capable of forming a
hydrogen bond; the
gold nanorod assembly contains at least two gold nanorods and the heterocyclic assembly molecule on each gold
nanorod, and the two gold nanorods are connected by the
hydrogen bond supramolecular interaction between the complementary functional groups of the heterocyclic assembly molecules. The preparation of the gold
nanorod assembly with high yield and linear orientation is realized by using the heterocyclic assembly molecule.