Pure semiconductor Quantum Dots?

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SUMMARY

Pure semiconductor quantum dots can be created using elements such as silicon and germanium, which are classified as group IV materials. The size of these quantum dots must be smaller than the Bohr Exciton Radius, which defines the maximum distance between an electron and a hole in semiconductors. The discussion clarifies that 'pure' refers to quantum dots composed of a single element, contrasting with composite quantum dots made from group II-VI and III-V elements. Resources such as Wikipedia provide detailed synthesis methods for silicon and germanium quantum dots.

PREREQUISITES
  • Understanding of quantum dot synthesis techniques
  • Knowledge of semiconductor physics, specifically the Bohr Exciton Radius
  • Familiarity with group IV semiconductor materials
  • Basic research skills for sourcing academic and technical resources
NEXT STEPS
  • Research synthesis methods for silicon quantum dots
  • Explore the properties and applications of germanium quantum dots
  • Study the implications of the Bohr Exciton Radius in semiconductor technology
  • Investigate the differences between pure and composite quantum dots
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Researchers, materials scientists, and engineers interested in semiconductor technology and quantum dot applications.

bluejay27
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Can you create pure semiconductor quantum dots? I have seen composite ones that are created with elements in the group II-VI and III-V. Moreover, it saids that the size of the quantum dots must smaller than the Bohr Excitron Radius. From my understanding of the Bohr Exciton Radius is the distance between the electron and hole encountered in semiconductors. How is it possible for the electron and hole to be a distance greater than that of the material?
 
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bluejay27 said:
Can you create pure semiconductor quantum dots? I have seen composite ones that are created with elements in the group II-VI and III-V. Moreover, it saids that the size of the quantum dots must smaller than the Bohr Excitron Radius. From my understanding of the Bohr Exciton Radius is the distance between the electron and hole encountered in semiconductors. How is it possible for the electron and hole to be a distance greater than that of the material?
What do you mean by a 'pure' semiconductor, do you mean where the dot is composed of only one element? In which case, have you tried searching for silicon or germanium quantum dots? A quick google search of silicon quantum dot revealed plenty of results, including the basic quantum dot Wikipedia page, which details the synthesis of silicon and germanium quantum dots.
 

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