Abstract
When butylamine in relatively high concentrations (0.1-0.25 M) is added to a colloidal solution of CdSe nanoparticles (NPs) that are approximately 1.6 nm in diameter, the band gap absorption changes from a broad, relatively weak absorption centered at 445 nm to a narrow, relatively strong absorption centered at 414 nm. The effect of concentration on the observed spectrum shows an isobestic point, suggesting an equilibrium between two species. The possible mechanisms for such a transformation are discussed.
Original language | English (US) |
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Pages (from-to) | 667-670 |
Number of pages | 4 |
Journal | Nano letters |
Volume | 1 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2001 |
Externally published | Yes |
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering