Quantum dots of Group IV semiconductor materials
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United States of America Patent
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Issued Date -
Apr 10, 2003
app pub date -
Aug 2, 2002
filing date -
Aug 2, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a quantum dot. The quantum dot comprises a core including a semiconductor material Y selected from the group consisting of Si and Ge. The quantum dot also comprises a shell surrounding the core. The quantum dot is substantially defect free such that the quantum dot exhibits photoluminescence with a quantum efficiency that is greater than 10 percent.
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