Used as a catalyst in organic synthesis, particularly in copper-catalyzed coupling reactions such as Ullmann-type reactions, facilitating the formation of carbon-carbon, carbon-nitrogen, carbon-oxygen, and other carbon-heteroatom bonds.

Employed in photovoltaic cells, including perovskite and organic solar cells, as a hole-transport material due to its semiconducting properties.

Acts as a source of iodide ions in the preparation of other iodine-containing compounds and as a mineral supplement in animal feed to provide both copper and iodine, preventing deficiencies in livestock such as poultry and ruminants.

Utilized in luminescent materials and sensors because of its photoluminescent characteristics under UV excitation.

Applied in some antimicrobial formulations and coatings, leveraging copper’s biocidal activity.

Also found in certain types of lithium batteries as a component in electrode materials.

Occasionally used in polymer industries, including rubber and plastics, as an additive to enhance UV stability and material durability.