The LaMer model describes the formation of these nanoparticles through burst nucleation. For 10 points each:
[10m] Name these nanoparticles produced through colloidal synthesis. Cadmium selenide and lead sulfide are common examples of these zero-dimensional nanoparticles.
ANSWER: quantum dots [or QDs]
[10h] Quantum dots can also be synthesized bottom-up using the “molecular beam” form of this process. In this process, thin layers of crystal are grown on top of a substrate.
ANSWER: epitaxy [accept molecular beam epitaxy; prompt on MBE]
[10e] To minimize contamination, molecular beam epitaxy is carried out in an “ultra-high” form of this condition. A region of space under this condition contains no matter.
ANSWER: vacuum [accept ultra-high vacuum; prompt on UHV]
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