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.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?
Pure semiconductor Quantum Dots are tiny crystals made of semiconductor materials such as silicon, germanium, or cadmium selenide. They are typically only a few nanometers in size and have unique electronic and optical properties due to their small size and quantum confinement effects.
Pure semiconductor Quantum Dots are typically synthesized through a process called colloidal synthesis, where precursor chemicals are heated to high temperatures in the presence of a surfactant. This results in the formation of nanocrystals with a specific size and shape.
Pure semiconductor Quantum Dots have a wide range of potential applications, including in solar cells, LED displays, biological imaging, and quantum computing. They have also been explored for use in drug delivery, sensing, and security applications.
Pure semiconductor Quantum Dots are distinguished from other types of quantum dots, such as metal and metal oxide quantum dots, by their composition. They are made purely of semiconductor materials and have unique properties due to their size and composition.
Some of the challenges associated with using pure semiconductor Quantum Dots include the potential toxicity of the materials used, difficulties in controlling the size and shape of the nanocrystals, and potential instability of the particles over time. These challenges are actively being researched and addressed by scientists in the field.