2016
DOI: 10.1007/s10854-016-5155-4
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Sonochemically assisted colloidal route to CdSe quantum dot assemblies: an alternative way to further fine-tune the size-dependent properties

Abstract: Continuous-wave heterogeneous sonochemical method was developed to synthesize 3D assemblies composed by QDs of metastable (cubic) modification of CdSe with sphalerite structural type. 3D QD assemblies were deposited in thin film form and as bulk precipitates. Structure, surface morphology, optical absorption as well as charge carriers' and phonon confinement effects were studied in details. The average nanocrystal radius, calculated by the Scherrer and Williamson-Hall methods, diminishes from 2.7 nm for sample… Show more

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Cited by 1 publication
(9 citation statements)
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“…Another notable feature of the measured spectral dependencies of the absorption coefficients in the cases of both asdeposited and thermally treated materials is the absence of clearly resolved excitonic peaks. Similar observations have been reported in previous studies by our [60][61][62][63][64][65][66]117,118 and other groups. 11−18 We rationalize these observations by the following reasoning.…”
Section: Resultssupporting
confidence: 92%
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“…Another notable feature of the measured spectral dependencies of the absorption coefficients in the cases of both asdeposited and thermally treated materials is the absence of clearly resolved excitonic peaks. Similar observations have been reported in previous studies by our [60][61][62][63][64][65][66]117,118 and other groups. 11−18 We rationalize these observations by the following reasoning.…”
Section: Resultssupporting
confidence: 92%
“…Although the fundamental chemical principles behind the approach utilized in the present study are known, the implementation thereof up to achievement of the final aimbuilding up a complex array of semiconductor QD solidsis far from a standard task. The complexity of the final material that needs to be synthesized in a predefined form, with predefined and controllable (tunable) physicochemical properties, implies by definition the complexity of the reaction system.…”
Section: Results and Discussionmentioning
confidence: 99%
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