TY - JOUR
T1 - Lamellar assembly of cadmium selenide nanoclusters into quantum belts
AU - Liu, Yi Hsin
AU - Wang, Fudong
AU - Wang, Yuanyuan
AU - Gibbons, Patrick C.
AU - Buhro, William E.
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (grants 81471241, 81271375, and 81171133). The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.
PY - 2011/10/26
Y1 - 2011/10/26
N2 - Here, we elucidate a double-lamellar-template pathway for the formation of CdSe quantum belts. The lamellar templates form initially by dissolution of the CdX2 precursors in the n-octylamine solvent. Exposure of the precursor templates to selenourea at room temperature ultimately affords (CdSe)13 nanoclusters entrained within the double-lamellar templates. Upon heating, the nanoclusters are transformed to CdSe quantum belts having widths, lengths, and thicknesses that are predetermined by the dimensions within the templates. This template synthesis is responsible for the excellent optical properties exhibited by the quantum belts. We propose that the templated-growth pathway is responsible for the formation of the various flat, colloidal nanocrystals recently discovered, including nanoribbons, nanoplatelets, nanosheets, and nanodisks.
AB - Here, we elucidate a double-lamellar-template pathway for the formation of CdSe quantum belts. The lamellar templates form initially by dissolution of the CdX2 precursors in the n-octylamine solvent. Exposure of the precursor templates to selenourea at room temperature ultimately affords (CdSe)13 nanoclusters entrained within the double-lamellar templates. Upon heating, the nanoclusters are transformed to CdSe quantum belts having widths, lengths, and thicknesses that are predetermined by the dimensions within the templates. This template synthesis is responsible for the excellent optical properties exhibited by the quantum belts. We propose that the templated-growth pathway is responsible for the formation of the various flat, colloidal nanocrystals recently discovered, including nanoribbons, nanoplatelets, nanosheets, and nanodisks.
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U2 - 10.1021/ja206776g
DO - 10.1021/ja206776g
M3 - Article
AN - SCOPUS:80055006969
SN - 0002-7863
VL - 133
SP - 17005
EP - 17013
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 42
ER -