TY - JOUR
T1 - Band gap engineering of quaternary-alloyed ZnCdSSe quantum dots via a facile phosphine-free colloidal method
AU - Deng, Zhengtao
AU - Yan, Hao
AU - Liu, Yan
PY - 2009/12/16
Y1 - 2009/12/16
N2 - (Chemical Equation Presented) We demonstrate the synthesis of quaternary-alloyed ZnxCd1-xSySe 1-y quantum dots (ZnCdSSe QQDs) across the entire composition range (x, y) = 0 to 1 with a size tunable from 4.0 to 10.0 nm by a facile, "green", phosphine-free, low-cost colloidal method. The ZnCdSSe QQDs have both composition- and size-dependent band gaps, which can be hybrid-engineered to span the entire visible spectrum. The new ZnCdSSe QQDs are easy to synthesize and have high quantum yields (up to 65%) without the necessity of overcoating a shell. These new quantum dots may find broad uses in biolabeling, biosensing, light-emitting diodes, and other nanodevice applications.
AB - (Chemical Equation Presented) We demonstrate the synthesis of quaternary-alloyed ZnxCd1-xSySe 1-y quantum dots (ZnCdSSe QQDs) across the entire composition range (x, y) = 0 to 1 with a size tunable from 4.0 to 10.0 nm by a facile, "green", phosphine-free, low-cost colloidal method. The ZnCdSSe QQDs have both composition- and size-dependent band gaps, which can be hybrid-engineered to span the entire visible spectrum. The new ZnCdSSe QQDs are easy to synthesize and have high quantum yields (up to 65%) without the necessity of overcoating a shell. These new quantum dots may find broad uses in biolabeling, biosensing, light-emitting diodes, and other nanodevice applications.
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U2 - 10.1021/ja908408m
DO - 10.1021/ja908408m
M3 - Article
C2 - 19928806
AN - SCOPUS:71749091255
SN - 0002-7863
VL - 131
SP - 17744
EP - 17745
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 49
ER -