Quantum dots are also called semiconductor nanocrystals. Generally speaking, the three dimensions of quantum dots are all below tens of nanometers, and can almost be regarded as a point in a macroscopic view, so it is often regarded as a quasi-zero-dimensional nanomaterial. Semiconductor quantum dots are widely used in many fields such as photodetectors, electroluminescent devices, solar cells, and biological imaging. Alfa Chemistry is confident to provide the most suitable custom lead selenium (PbSe) quantum dots for customers' optical research and energy development projects with high-quality specifications.
Background
PbSe quantum dots are narrow-band (bulk phase gaps of 0.28 eV) direct band gap semiconductor materials, belonging to the cubic crystal system, with a lattice constant of 6.124 Å, and having a rock salt crystal structure, compared to the Ⅱ-VI group And Ⅲ-V group quantum dots (the exciton Bohr radius is 4~10 nm), because PbSe quantum dots have a larger exciton Bohr radius (46 nm), so PbSe quantum dots have a strong quantum confinement effect, the strong quantum confinement will cause more electronic wave function leakage, that is, extend beyond the quantum dots. When the quantum dot film is made, the electrical coupling between the quantum dots will be stronger, which will show A more efficient electron transmission performance, so it is used to make field effect transistors, etc.
Services
Alfa Chemistry team has a successful record in the design and production of different types of quantum dots. Help customers choose and optimize the most suitable method for each project. Our services include the following:
When customizing PbSe quantum dots, you can choose the above services, shape and size control and provide mechanism analysis for customers. At the same time, we also provide a series of product test data, comprehensive analysis of the nature of the product you need. You can ask us about any process you are learning.
Service principle
Alfa Chemistry will always stick to the target of high quality, good faith, unique brand and long-term development.
The company philosophy is that customer demand is the direction of our struggle.
Advantages of our services
- The national technology platform and an excellent team of experts.
- High-quality services and products at competitive prices.
- Timely report on project progress.
- Convenient and efficient transportation service.
Our clients have direct access to our staff and prompt feedback.
Why choose us?
As a professional quantum dot service platform, Alfa Chemistry has the most professional technology and means to develop the most reasonable material optimization strategies for customers in order to provide you with:
- Ensure the reliable operation of quantum dots and meet the authentication requirements.
- Product solutions modified according to requirements.
We will be glad to discuss details of intended interaction studies with you and develop experimental strategies/methods tailored to your requirement.
Our customer service representatives are enthusiastic and trustworthy 24 hours a day, Monday to Friday.
Please do not hesitate to contact us for more information or to discuss in detail, if you are interested in our services.
* It should be noted that our service is only used for research, not for clinical use.
