As the demand for next-generation electronic and optoelectronic devices continues to grow, two-dimensional (2D) semiconductor materials have become a major focus of scientific research and industrial innovation. Among various material platforms, wafer-scale polycrystalline 2D semiconductors offer an attractive balance between performance, scalability, and cost-effectiveness. Alfa Chemistry offers the polycrystalline series, providing researchers and manufacturers with reliable material solutions to support advanced technology development and accelerate commercialization.
What Is the Polycrystalline Series?
The polycrystalline series comprises wafer-scale 2D semiconductor materials formed by numerous interconnected crystalline grains within a continuous thin film. These materials are typically synthesized through advanced thin-film growth technologies, enabling uniform and continuous coverage across large-area substrates such as sapphire, silicon wafers, glass, quartz, and flexible PI/PET films. Designed to support both scientific research and practical device development, the polycrystalline series provides a reliable material platform for investigating the properties, fabrication processes, and application potential of 2D semiconductors.
Key Advantages of the Polycrystalline Series
The polycrystalline series offers a unique combination of scalability, material versatility, and manufacturing compatibility that makes it highly attractive for both fundamental research and industrial development. Unlike mechanically exfoliated materials, which are often limited in size and reproducibility, wafer-scale polycrystalline 2D semiconductors can be produced over large substrate areas, enabling more consistent device fabrication and statistical performance evaluation.
In addition, these materials are compatible with a wide range of conventional microfabrication processes, including photolithography, thin-film deposition, etching, and transfer techniques. This compatibility facilitates seamless integration into existing semiconductor manufacturing workflows, reducing barriers to process development and technology translation.
Performance Parameters
To support diverse research and application requirements, Alfa Chemistry provides a broad portfolio of polycrystalline 2D semiconductor materials. Available material systems include transition metal dichalcogenides (TMDs) such as MoS2, WSe2, WS2, and MoSe2. The table below presents the key performance parameters of these products, providing important reference information for device fabrication and application development.
| Catalog Number | Material | Characteristic | Substrate | Size | Application |
| ACSEM-2D-0005 | MoS2 | - Single-Layer
- Suitable for Large-Scale Applications
- Reference Mobility: 35 cm2·V-1·s-1
| - Sapphire
- Silicon Wafer
- Glass
- Quartz
- PI/PET
| - 10 mm×10 mm
- 2-12 inch wafer
| - Thin-Film Transistors (TFTs)
- Flexible Electronics
- Low-Cost Sensors
- Photocatalysis
|
| ACSEM-2D-0006 | WSe2 | - Single-Layer
- Suitable for Large-Scale Applications
| - 10 mm×10 mm
- 2-4 inch wafer
|
| ACSEM-2D-0007 | WS2 | - Single-Layer
- Suitable for Large-Scale Applications
| - 10 mm×10 mm
- 2-4 inch wafer
|
| ACSEM-2D-0008 | MoSe2 | | - 10 mm×10 mm
- 2-12 inch wafer
| - Optoelectronic Devices
- Photodetectors
- Fundamental Research
|
Partner with Alfa Chemistry
At Alfa Chemistry, we are committed to providing global customers with high-quality wafer-scale 2D semiconductor materials, supporting cutting-edge scientific research and technological innovation. Our polycrystalline series combines scalability, versatility, and application potential, making it an ideal choice for researchers exploring the future of electronics, photonics, sensing, and flexible device technologies.
With extensive experience in advanced materials and a commitment to customer-focused solutions, Alfa Chemistry is ready to help accelerate your innovation journey and unlock the full potential of next-generation 2D semiconductor platforms.
