Perovskite Quantum Dots Supplier - Alfa Chemistry

Custom Carbon Quantum Dot Services with Phosphorescent Properties


Custom Carbon Quantum Dot Services with Phosphorescent Properties

Room temperature phosphorescence (RTP) carbon quantum dots (CQDs) can be used in biological imaging, photoelectric devices, anti-counterfeiting encryption and other fields. As a professional manufacturer of quantum dots, Alfa Chemistry constantly launches new products and expands new applications. Our expert team keeps pace with The Times and collaborates with the optical research team to develop new products and services. Choose and trust us, we can bring you a very convenient service.


Afterglow materials include phosphorescent materials, continuous luminescent materials, delayed fluorescent materials, etc., and are used in fields such as light-emitting devices, sensing, biomedicine, and security systems. At present, afterglow materials are mainly limited to inorganic materials containing rare earths, complexes containing precious metals and pure organic compounds. Carbon quantum dots (CQDs) are a new type of zero-dimensional carbon nano luminescent materials, whose particle size is generally less than 10 nm. Carbon quantum dots not only play an important role in the field of fluorescent materials, but also occupy a place in the application field of afterglow materials. Room temperature phosphorescence (RTP) materials are materials that can emit phosphorescence at room temperature (that is, they can continue to emit light after the light is stopped, and the luminescence rate is slow, about 10-4s-10s). However, due to the spin forbidden transition of the triplet excitons, the rate constant of the intersystem crossing (ISC) is low, making it almost impossible to observe the phosphorescence of CQDs, and the phosphorescence lifetime is short, so it can only be recombined to some solids. In the matrix to extend the light-emitting life, such as alum, polyvinyl alcohol (PVA), polyurethane, layered double hydroxide (LDH), colloidal nano silica and zeolite, etc.


Alfa Chemistry has long been committed to providing customers with excellent quantum dot services. You can seek corresponding quantum dot solutions from us according to your needs. Our current quantum dot products include the following:

  • Custom Phosphorescent Carbon Quantum Dots
  • Product Solution
  • Related Test Data and Reports


Encryption and anti-counterfeiting technology is undoubtedly an effective method to protect the interests of consumers. With the special role of encryption anti-counterfeiting technology products gradually being recognized by the society and widely used in various fields, especially in securities, currency, seals, ID photos, medicine, audio-visual products, food, cosmetics, software, computer chips, etc..

Our quantum dots can be used in fields such as information encryption, advanced anti-counterfeiting and security inks.

The specific data content we can provide:

  • TEM image
  • Infrared spectra
  • XPS spectrum
  • UV absorption spectrum
  • Phosphorescence emission spectrum
  • Phosphorescence excitation spectrum
  • Phosphorescence lifetime spectrum
  • Anti-counterfeiting application photos

The advantages of our service

  • State-of-the-art facilities
  • Fully developed and improved detection methods
  • You can start your project after signing the contract
  • Fast and traceable testing services for emergency project needs
  • Most competitive price

Service process

  • Communicate with us and email us
  • Propose the required quantum dots
  • Performance test
  • Feedback of test report and product solution to customer

Service process

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.


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