NCJ Number
304221
Journal
Journal of Physical Chemistry C Volume: 118 Issue: 33 Dated: 2014 Pages: 19415–19421
Date Published
2014
Length
7 pages
Annotation
This article reports on a project that observed the enhancement of a transverse optical (TO) phonon mode of e1 symmetry and a normally forbidden surface optical (SO) phonon mode of b1 symmetry in CdSe quantum dots (QDs) due to adsorption of 4-mercaptopyridine molecules.
Abstract
The former was observed in 3, 4, and 5 nm diameter particles, while the latter was observed only in the 2 nm particles. Maximum enhancement of the phonon modes was obtained through a coupling of the charge-transfer transition and the exciton transition, which are in resonance with the laser energy. Selection rules, using Herzberg–Teller (vibronic) coupling, were invoked to explain the observed enhancements. (publisher abstract modified)
Date Published: January 1, 2014
Downloads
Similar Publications
- Frontal sinus morphology as a forensic identification method: a comparison of intra-observer scores between scout radiographs and 3D skull images
- A Systematic Study of Liquid Chromatography to Separate Eighteen Natural Cannabinoids for Potency Testing of Hemp-Based Products Using Diode Array Detector and Electrospray Ionization Mass Spectrometry
- Advancements in technology integration, screening methodologies, and modeling of fundamental behaviors of gunshot residues