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• W2079302722 startingPage "11784" @default.
• W2079302722 abstract "The static and time-resolved photoluminescence properties of polystyrene-b-poly(acrylic acid) (PS-b-PAA)-stabilized cadmium sulfide quantum dots (CdS QDs) have been characterized for the first time, demonstrating tunable emission spectra and quantum yields via different chemical treatments of the PAA layer. Samples with the PAA layer in its cadmium carboxylate form showed more-intense band-edge emission and relatively high quantum yields compared with samples in which the PAA layer was in its acid form. This activation effect is explained in terms of passivation of trap sites on the QD surface by specific interactions between the QD and the cadmium-neutralized PAA layer. Lifetimes of band-edge and trap state emission for the various samples ranged from 40 to 61 ns and 244 to 360 ns, respectively. Impressive long-term stability was also shown for a sample of cadmium-neutralized PS-b-PAA-stabilized QDs dispersed in toluene, which maintained 90% of its photoluminescence over 57 days aging under ambient conditions. It is also shown that Cd2+ activation of photoluminescence does not occur when Mg2+ ions are added to similar QD solutions, indicating potential of these block copolymer-stabilized QDs as Cd2+-selective sensors. Irrespective of chemical treatment of the PAA layer, the external PS brush layer effectively stabilized all samples in various organic solvents, resulting in clear CdS colloids with no observed precipitation over several months. Dynamic light scattering and gel permeation chromatography revealed differences in the aggregation numbers and hydrodynamic radii of colloidal QDs for different treatments of the PAA layer, attributed to the lower solubility of the poly(cadmium acrylate) blocks compared to the PAA blocks in the acid form. Finally, it was demonstrated that the PS-b-PAA-stabilized QDs could be well dispersed in PS homopolymer, producing optically transparent photoluminescent films which retained the emission features of the colloidal QDs. Stable and surface-tunable optical properties via the PAA layer and polymer solubility and processability via the PS layer make these PS-b-PAA-stabilized CdS QDs exciting “building blocks” for the bottom-up assembly of functional hierarchical materials for photonics, sensors, and bio-labeling applications." @default.
• W2079302722 created "2016-06-24" @default.
• W2079302722 creator A5038309338 @default.
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• W2079302722 date "2004-11-24" @default.
• W2079302722 modified "2023-10-16" @default.
• W2079302722 title "Surface-Tunable Photoluminescence from Block Copolymer-Stabilized Cadmium Sulfide Quantum Dots" @default.
• W2079302722 cites W1898679156 @default.
• W2079302722 cites W1963781924 @default.
• W2079302722 cites W1964309280 @default.
• W2079302722 cites W1968872177 @default.
• W2079302722 cites W1970438751 @default.
• W2079302722 cites W1970934213 @default.
• W2079302722 cites W1979431916 @default.
• W2079302722 cites W1982316423 @default.
• W2079302722 cites W1985295730 @default.
• W2079302722 cites W1985428419 @default.
• W2079302722 cites W1992219819 @default.
• W2079302722 cites W1994872146 @default.
• W2079302722 cites W1998559042 @default.
• W2079302722 cites W2004568747 @default.
• W2079302722 cites W2005080245 @default.
• W2079302722 cites W2005399364 @default.
• W2079302722 cites W2005961085 @default.
• W2079302722 cites W2008498840 @default.
• W2079302722 cites W2009561038 @default.
• W2079302722 cites W2009981131 @default.
• W2079302722 cites W2013331996 @default.
• W2079302722 cites W2017387888 @default.
• W2079302722 cites W2017629262 @default.
• W2079302722 cites W2017657401 @default.
• W2079302722 cites W2019275733 @default.
• W2079302722 cites W2020071987 @default.
• W2079302722 cites W2020803381 @default.
• W2079302722 cites W2020816534 @default.
• W2079302722 cites W2025669689 @default.
• W2079302722 cites W2025795586 @default.
• W2079302722 cites W2025818411 @default.
• W2079302722 cites W2028258211 @default.
• W2079302722 cites W2029116605 @default.
• W2079302722 cites W2029282357 @default.
• W2079302722 cites W2032125989 @default.
• W2079302722 cites W2035123653 @default.
• W2079302722 cites W2038014074 @default.
• W2079302722 cites W2039501915 @default.
• W2079302722 cites W2057039022 @default.
• W2079302722 cites W2059816629 @default.
• W2079302722 cites W2060611033 @default.
• W2079302722 cites W2063575064 @default.
• W2079302722 cites W2064247719 @default.
• W2079302722 cites W2064812564 @default.
• W2079302722 cites W2065140580 @default.
• W2079302722 cites W2068629952 @default.
• W2079302722 cites W2070081309 @default.
• W2079302722 cites W2071671615 @default.
• W2079302722 cites W2072189186 @default.
• W2079302722 cites W2074073070 @default.
• W2079302722 cites W2074853980 @default.
• W2079302722 cites W2076025083 @default.
• W2079302722 cites W2081966798 @default.
• W2079302722 cites W2085058785 @default.
• W2079302722 cites W2087236406 @default.
• W2079302722 cites W2087269569 @default.
• W2079302722 cites W2088891780 @default.
• W2079302722 cites W2091418484 @default.
• W2079302722 cites W2115844123 @default.
• W2079302722 cites W2117153061 @default.
• W2079302722 cites W2125044103 @default.
• W2079302722 cites W2125516864 @default.
• W2079302722 cites W2148092984 @default.
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• W2079302722 doi "https://doi.org/10.1021/la048390g" @default.
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