Observation of Large Changes in the Band Gap Absorption Energy of Small CdSe Nanoparticles Induced by the Adsorption of a Strong Hole Acceptor
Nano Letters2001Vol. 1(11), pp. 667–670
Citations Over TimeTop 17% of 2001 papers
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.
Related Papers
- → The phase behaviour of colloid-polymer and colloid-colloid mixtures(2008)3 cited
- → 'Sensitizing' by Protective Colloids(1945)2 cited
- Quality study of SPIO colloid solution(2008)
- → PHOTODEPOSITION FROM COLLOID SOLS(1992)
- → Analysis of Characteristics and Research on Processing Method of the High Viscosity DW-1 Colloid(2020)