Ultrasonic Spraying of Catalysts for Photosensors

Ultrasonic Spraying of Catalysts for Photosensors – Cheersonic

Ultrasonic spraying technology, with its precise and controllable advantages, has become a core process for coating catalysts for photosensors. It effectively solves many pain points of traditional coating methods, significantly improving the catalytic performance and stability of photosensors. This technology utilizes high-frequency ultrasonic vibration to atomize catalyst slurry into micron-sized uniform droplets, which are then guided to the sensor substrate surface by a low-pressure carrier gas. After solvent evaporation, a dense and uniform catalytic coating is formed, meeting the stringent requirements of photosensors for the catalytic layer.

Compared to traditional droplet coating and air spraying, ultrasonic spraying has significant advantages. First, it produces excellent coating uniformity with a narrow droplet size distribution, ensuring uniform distribution of the active catalyst components, avoiding agglomeration, and guaranteeing consistent response rate and stable sensitivity of the photosensor. Second, it offers high material utilization; the atomized droplets have low momentum and strong directionality, significantly reducing overspray losses, making it particularly suitable for precious metal catalysts, saving more than 50% of material costs and reducing production losses.

This process is compatible with various catalysts commonly used in optical sensors. By adjusting parameters such as ultrasonic frequency and slurry delivery rate, precise control of coating thickness from nanometer to micrometer scale can be achieved, balancing the sensitivity and response speed of the optical sensor. Simultaneously, the non-contact spraying process causes no mechanical impact on the porous substrate of the sensor, preserving the original structure of the substrate, facilitating gas diffusion and catalytic reactions, and extending the sensor’s lifespan.

Currently, ultrasonically sprayed optical sensor catalysts are widely used in various precision sensing fields. By optimizing the catalyst layer structure, the conversion efficiency and detection accuracy of optical signals by optical sensors are significantly improved, providing efficient and reliable process support for the large-scale production of high-performance optical sensors and driving the development of optical sensing technology towards miniaturization and high precision.

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

Chinese Website: Cheersonic Provides Professional Coating Solutions