Scattering Imaging of Single Quantum Dots with Dark-Field Microscopy
Resource
Analytical Chemistry, 81(17), 7507-7509
Journal
Analytical Chemistry
Pages
7507-7509
Date Issued
2009
Date
2009
Author(s)
Bu, X.
Chen, H. P.
Gai, H. W.
Yang, R. H.
Yeung, E. S.
Abstract
Scattering images of single quantum dots (QDs) are obtained with a standard dark-field microscope at a video rate. The counts of QDs under dark-field remained constant while the scattering intensity decreased, providing direct proof of quantum dot photophysical bleaching as opposed to desorption or photodecomposition.
Type
journal article
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