Observation of compositional domains within individual copper indium sulfide quantum dots.
Nanoscale
; 8(36): 16157-61, 2016 Sep 28.
Article
de En
| MEDLINE
| ID: mdl-27465708
ABSTRACT
The origin of photoluminescence in copper indium sulfide (CIS) quantum dots (Qdots) has previously been ascribed to a donor-acceptor pair (DAP) recombination, with a crystal lattice defect implicated as the origin of the donor state. In this study, electron energy-loss spectroscopy (EELS) was used to observe defect-rich compositional domains within individual CIS Qdots, supporting a model of defect-state-mediated photoluminescence for these particles, and identifying them as an ideal model system for future study of lattice defects on Qdot properties.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Nanoscale
Année:
2016
Type de document:
Article
Pays d'affiliation:
Royaume-Uni