Perovskite Quantum Dots Supplier - Alfa Chemistry

X-Ray Diffraction (XRD) Services


X-ray diffraction technology (X-ray diffraction, XRD) is a research method that analyzes the diffraction pattern of a material by X-ray diffraction to obtain information such as the composition of the material, the structure or morphology of the atoms or molecules inside the material. X-ray diffraction analysis is the main method to study the phase structure and crystal structure of matter. When a substance (crystalline or amorphous) is subjected to diffraction analysis, the substance is irradiated with x-rays, resulting in different degrees of diffraction. Its composition, crystal form, intramolecular bonding method, molecular configuration, conformation, etc. determine the unique diffraction pattern produced by the substance. The X-ray diffraction method has the advantages of no damage to the sample, no pollution, fast measurement speed, high measurement accuracy, and a large amount of information on the integrity of the crystal.

PXRD pattern of CsPbBr3 QDsPXRD pattern of CsPbBr3 QDs (Chen et al. 2017)


Alfa Chemistry provides professional XRD testing services. Our professional and reliable team is able to provide customers with scientific and standardized test reports. Our company provides the following services:

  • Invoices, Lists and Contracts
  • Testing Reports

Project information

  • Test Angle
  • Conventional wide Angle: 5-90°, small Angle: 0.5-10°

  • Test Rate
  • Conventional test rate: 10° /min, 5° /min, 2° /min; Small Angle test rate: 1° /min, 0.5° /min

  • Test Data
  • This test only obtains the original XRD spectrum of the sample, does not include the processing and analysis of the data.

For specific test conditions and analysis of test data, consult the relevant test researcher at Alfa Chemistry.

What X-ray diffraction (XRD) can do

  • The properties of many materials are determined by the degree of crystallization, which can be determined by using XRD crystallinity analysis.
  • New material development needs to fully understand the lattice parameters of the material, the use of XRD can quickly test the lattice parameters, to provide performance verification indicators for the development and application of new materials.
  • The failure phenomenon such as fracture deformation occurs in the process of use of the product, which may involve the influence of microscopic stress. The microscopic stress can be quickly determined by using XRD.
  • The average particle size of nanometer materials can be determined by X-ray diffraction linewidth method (Scherrer method) because the particles are very small and can easily form into aggregates.

Sample preparation required

  • XRD can test powder, film, bulk, coating, liquid and irregular samples, basically no non-gas substances can't be tested.
  • The particle size of powder is required to be greater than 200 mesh, 200-300 mesh is the most suitable, the quality of 0.1g block sample should be provided as far as possible, the length and width should not be greater than 20 mm, the height should not be greater than 15 mm, and the surface should be smooth, and the test surface should be marked.

Advantages of our services

  • One-stop test platform, from sample preparation to test data and analysis, we include every part.
  • Reliable scientific research personnel ensure the standardization of experimental practice.
  • Short time, high efficiency.
  • The most competitive price.

Testing workflow

Testing workflow

Our customer service representatives are enthusiastic and trustworthy 24 hours a day, Monday to Friday. If you are interested in our services, please contact us.

* It should be noted that our service is only used for research, not for clinical use.


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