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US 2010/0226849 A1Published application
Semiconductor Nanocrystal Synthesis Using a Catalyst Assisted Two-phase Reaction
AssigneeEvident Technologies
InventorAdam Peng
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Abstract
A method for producing a high yield of high quality, low size distribution, and size tunable semiconductor nanocrystals. The method produces III-V, II-VI, II-V, IV-VI, IV, ternary, quarternary, and quinary semiconductor nanocrystals (quantum dots) using a catalyst assisted two-phase reaction.
Claims13
A method of synthesizing semiconductor nanocrystals comprising:
- incompletely reacting a metal chalcogenide with an organic acid to form a metal-acid complex precursor and water;
- adding to the metal-acid complex precursor a solution containing Se:TBP (selenium dissolved in tributylphosphine), Se:TOPO (selenium dissolved in trioctylphosphine oxide), or both, to form nanocrystal seeds and an acidic ion;
- and
- growing a plurality of semiconductor nanocrystals from the nanocrystal seeds,
- wherein the acidic ion combines with a catalyst to reform the organic acid.
2 more elements
Dependencies are inferred from the claim text.