Abstract
Free-standing PbSe nanocrystals, including quantum wires, multipods, quantum rods, quantum dots, and cubes, were produced in a colloidal solution in the presence of alkyl-diamine solvent at 10-117°C. The morphology of the nanocrystals was governed by a solvent coordinating molecular template mechanism, which was further adjusted by the temperature and duration of the reaction. Crystalline wires with diameters of approximately 20 nm and lengths of 1-5 μm were formed at the lowest temperatures, while quantum rods (with an aspect ratio of ∼5) and cubes (with 100-500 nm edge) were formed at elevated temperatures.
Original language | English |
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Pages (from-to) | 857-862 |
Number of pages | 6 |
Journal | Nano Letters |
Volume | 3 |
Issue number | 6 |
DOIs | |
State | Published - 1 Jun 2003 |
Externally published | Yes |
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering