Semiconductor Quantum Dot Scintillation under γ-Ray Irradiation

We recently demonstrated the ability of semiconductor quantum dots to convert α radiation into visible photons. In this letter, we report on the scintillation of quantum dots under γ irradiation and compare the energy resolution of the 59 keV line of americium-241 obtained with our quantum dot−glass...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2006-12, Vol.6 (12), p.2877-2880
Main Authors: Létant, S. E, Wang, T.-F
Format: Article
Language:English
Subjects:
Americium
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Gamma Cameras
Gamma Rays
Glass
Materials science
Nanoscale materials and structures: fabrication and characterization
Nanostructures - chemistry
Other topics in nanoscale materials and structures
Photons
Physical radiation effects, radiation damage
Physics
Quantum Dots
Radioisotopes
Semiconductors
Structure of solids and liquids
crystallography
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We recently demonstrated the ability of semiconductor quantum dots to convert α radiation into visible photons. In this letter, we report on the scintillation of quantum dots under γ irradiation and compare the energy resolution of the 59 keV line of americium-241 obtained with our quantum dot−glass nanocomposite to that of a standard sodium iodide scintillator. A factor 2 improvement is demonstrated experimentally and interpreted theoretically using a combination of energy-loss and photon-transport models.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl0620942