Ultrasonic spraying machine for gallium nitride nanoparticles

Ultrasonic spraying machine for gallium nitride nanoparticles

Gallium nitride (GaN) nanoparticles are core nanomaterials for third-generation semiconductors. With the molecular formula GaN, they appear as dark gray powders, belonging to group III nitrides. They possess two main stable crystal structures: wurtzite and zincblende. Purity can reach over 99%, with a typical particle size of 10-100 nm, a density of 6.1 g/cm³, a melting point of approximately 1700℃, and a band gap of 3.4V. They exhibit excellent electrical, optical, and thermal properties, high electron saturation velocity, large piezoelectric constant, resistance to wet corrosion, and excellent chemical stability. They are insoluble in water, dilute acids, and ethanol, making them core supporting materials for high-end fields such as optoelectronic devices, semiconductors, and microwave communications. They can be prepared through processes such as metal-organic chemical vapor deposition, molecular beam epitaxy, and solvothermal synthesis.

Although gallium nitride nanoparticles have excellent properties, traditional spraying processes struggle to achieve high-quality film formation due to limitations in their material characteristics. Gallium nitride (GaN) nanoparticles possess high surface energy and strong van der Waals forces, making them prone to agglomeration and the formation of dense aggregates. This leads to defects in the coating, such as porosity and uneven thickness, hindering the realization of their excellent electrical and optical properties. Furthermore, their fragile crystal structure makes them highly susceptible to damage from the high-pressure impacts and mechanical shear forces of traditional pneumatic spraying and spin coating processes. This can easily disrupt the wurtzite or zinc sphalerite crystal structure, causing particle breakage, performance degradation, and even affecting the bandgap and electron transport efficiency. In addition, traditional processes result in significant raw material waste, resulting in substantial losses of expensive GaN nanoparticles. The coatings also exhibit poor thickness consistency and numerous pinhole defects, failing to meet the precision coating standards of high-end fields such as semiconductors and laser devices, severely limiting their industrialization and large-scale application.

Cheersonic ultrasonic spraying machines, specifically designed for the material characteristics of GaN nanoparticles, offer a customized precision spraying process, completely resolving the various pain points of traditional processes. The equipment employs a 25kHz-180kHz high-frequency ultrasonic atomization principle. Through a piezoelectric transducer, electrical energy is converted into high-frequency mechanical vibration, uniformly atomizing gallium nitride nanoparticle dispersions into micron-sized droplets. The entire process involves low-pressure, gentle atomization, free from high-pressure impact and mechanical shearing, maximizing the protection of the intact crystal structure of the gallium nitride nanoparticles and preventing particle breakage and performance degradation. Simultaneously, high-frequency atomization effectively disperses agglomerated particles, ensuring uniform droplet distribution and fundamentally solving problems such as coating porosity and uneven thickness, fully releasing its core electrical and optical properties.

Compared to traditional spraying processes, Cheersonic ultrasonic spraying equipment offers significant advantages. The equipment boasts high atomization uniformity, enabling the preparation of nanoscale ultrathin continuous films. The coatings are dense, pinhole-free, and crack-free, with significantly improved conductivity, optical stability, and high-temperature resistance. The non-contact directional deposition spraying method allows for gallium nitride nanoparticle utilization rates exceeding 90%, more than double that of traditional processes, greatly reducing production costs and aligning with green production principles. The equipment boasts exceptional compatibility, adaptable to various solvent systems for gallium nitride nanoparticle dispersions and suitable for diverse substrates including sapphire, silicon wafers, ceramics, and metal sheets. It enables both large-area uniform spraying and small-area precision spraying, meeting the needs of both laboratory R&D and industrial mass production.

In practical applications, gallium nitride nanoparticle films prepared by the Cheersonic ultrasonic spraying machine exhibit stable performance and excellent repeatability, making them widely applicable across multiple fields. In optoelectronic devices, they can be used to fabricate LEDs and ultraviolet detectors, enhancing luminous efficiency and detection sensitivity through superior optical properties. In the semiconductor field, they can serve as a raw material for semiconductor thin films, adapting to chip manufacturing and improving chip switching speed and power density. In the laser device field, they can be used for laser chip coating preparation, contributing to the miniaturization and efficiency of laser devices. In the microwave communication field, they can be used for microwave device spraying, improving signal transmission efficiency and stability in communication equipment, suitable for 5G, deep-sea communication, and other scenarios.

With the continuous iteration of high-end semiconductor and optoelectronic device technologies, the market applications of gallium nitride nanoparticles are becoming increasingly widespread, leading to ever-increasing demands for the precision and stability of spraying processes. Cheersonic Ultrasonic Equipment Co., Ltd. has been deeply involved in the field of nano-coating for many years, focusing on solving the precision film formation problems of various high-end nanomaterials. Relying on mature equipment technology and a complete process system, it provides efficient, stable and cost-effective complete solutions for the preparation of gallium nitride nanoparticle thin films, helping various semiconductor, optoelectronic device and microwave communication companies to achieve technological upgrades and mass production.

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.

If you have any technical questions, customization demands, or procurement inquiries about ultrasonic atomization nozzles, feel free to contact our professional sales and technical team for detailed parameters, customized solutions, and industry application support.
Email: market2@cheersonic.com