Double sided blackened copper conductive film and its preparation method

1、 Introduction to double-sided blackened copper conductive film

Double sided blackened copper conductive film is a new type of high-performance conductive material, characterized by high conductivity and good optical properties on both sides. Due to its excellent conductivity and optical properties,Double sided blackened copper conductive filmIt has broad application prospects in fields such as electronic devices, optoelectronic devices, and solar cells.

2、 Preparation method

1. Material preparation: Use high-purity copper foil as the substrate to ensure the quality of the conductive film. Meanwhile, prepare the necessary chemical reagents and equipment.

2. Surface cleaning: Use appropriate cleaning agents to clean the surface of copper foil to remove oil stains and impurities.

3. Blacking treatment:

Choose a suitable blackening solution, commonly used blackening solutions include copper sulfate, sulfuric acid, etc.

Immerse the copper foil in a blackening solution, control the appropriate temperature and time to form a layer of black oxide on the surface of the copper foil.

Take out the copper foil, rinse it clean with clean water, and remove any residual blackening liquid on the surface.

4. Preparation of conductive film:

Coating the blackened copper foil surfaceConductive materialsSuch as metal nanoparticles, conductive polymers, etc.

By using methods such as hot pressing, vacuum evaporation, or sputtering, conductive materials can form a uniform conductive film on the surface of copper foil.

Heat treat the conductive film to improve its conductivity and stability.

5. Double sided processing: Flip the processed conductive film over and repeat the steps of blackening and preparing the conductive film to complete the preparation of the double-sided blackened copper conductive film.

3、 Precautions

During the preparation process, it is necessary to strictly control the concentration, temperature, and time of chemical reagents to ensure the blackening effect and the quality of the conductive film.

When coating conductive materials, it is necessary to ensure that the conductive material is evenly covered on the surface of the copper foil to avoid poor conductivity or circuit breakage.

During the heat treatment process, appropriate temperature and time should be selected to avoid damage or destruction to the conductive film.

4、 Application prospects

Double sided blackened copper conductive filmDue to its unique performance and wide range of applications, it is expected to play an important role in electronic devices, optoelectronic devices, solar cells, and other fields. With the continuous advancement of technology and the expansion of applications, double-sided blackened copper conductive film will have a broader market prospect and application space.