Abstract
Aberration-corrected Z-contrast scanning transmission electron microscopy of core/shell nanocrystals shows clear correlations between structure and quantum efficiency. Uniform shell coverage is obtained only for a graded CdS/ZnS shell material and is found to be critical to achieving near 100% quantum yield. The sublattice sensitivity of the images confirms that preferential growth takes place on the anion-terminated surfaces. This explains the three-dimensional "nanobullet" shape observed in the case of core/shell nanorods.
| Original language | English |
|---|---|
| Pages (from-to) | 1496-1501 |
| Number of pages | 6 |
| Journal | Nano Letters |
| Volume | 6 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2006 |
Fingerprint
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Chemistry (miscellaneous)
Cite this
Structural basis for near unity quantum yield core/shell nanostructures. / Mcbride, James; Treadway, Joe; Feldman, Leonard C; Pennycook, Stephen J.; Rosenthal, Sandra J.
In: Nano Letters, Vol. 6, No. 7, 07.2006, p. 1496-1501.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural basis for near unity quantum yield core/shell nanostructures
AU - Mcbride, James
AU - Treadway, Joe
AU - Feldman, Leonard C
AU - Pennycook, Stephen J.
AU - Rosenthal, Sandra J.
PY - 2006/7
Y1 - 2006/7
N2 - Aberration-corrected Z-contrast scanning transmission electron microscopy of core/shell nanocrystals shows clear correlations between structure and quantum efficiency. Uniform shell coverage is obtained only for a graded CdS/ZnS shell material and is found to be critical to achieving near 100% quantum yield. The sublattice sensitivity of the images confirms that preferential growth takes place on the anion-terminated surfaces. This explains the three-dimensional "nanobullet" shape observed in the case of core/shell nanorods.
AB - Aberration-corrected Z-contrast scanning transmission electron microscopy of core/shell nanocrystals shows clear correlations between structure and quantum efficiency. Uniform shell coverage is obtained only for a graded CdS/ZnS shell material and is found to be critical to achieving near 100% quantum yield. The sublattice sensitivity of the images confirms that preferential growth takes place on the anion-terminated surfaces. This explains the three-dimensional "nanobullet" shape observed in the case of core/shell nanorods.
UR - http://www.scopus.com/inward/record.url?scp=33746917979&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33746917979&partnerID=8YFLogxK
U2 - 10.1021/nl060993k
DO - 10.1021/nl060993k
M3 - Article
C2 - 16834437
AN - SCOPUS:33746917979
VL - 6
SP - 1496
EP - 1501
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 7
ER -