研究目的
To synthesize luminescent CdSeS/polystyrene composite microspheres using butan-1-ol as a solvent, combining the optical properties of quantum dots with the surface properties of colloidal polymer microspheres.
研究成果
The synthesis of fluorescent QD/polymer composites by dispersion polymerization in the presence of CdSeS QDs was successful, demonstrating narrow, symmetrical emission bands and broad excitation ranges. The composites are suitable for various labeling applications due to their colloidal stability and resistance to photobleaching.
研究不足
The addition of QD solution caused a broadening of the particle size distribution, and the use of hexane could not be eliminated without adversely affecting the reaction.
1：Experimental Design and Method Selection:
Dispersion polymerization was chosen for synthesizing the composites, utilizing butan-1-ol as a solvent to solubilize non-polar QDs.
2：Sample Selection and Data Sources:
CdSeS QDs were prepared from cadmium oleate, trioctylphosphine sulfide (TOPS), and trioctylphosphine selenide (TOPSe).
3：List of Experimental Equipment and Materials:
Materials included polyvinylpyrrolidone (PVP), 1,1'-azobis(cyclohexane-carbonitrile) (ACHN), acrylic acid (AA), divinylbenzene (DVB), and styrene.
4：Experimental Procedures and Operational Workflow:
QDs were mixed with styrene/DVB/AA in butan-1-ol, followed by the addition of ACHN initiator, and the mixture was maintained at 70°C overnight.
5：Data Analysis Methods:
Characterization was performed using SEM, DLS, fluorescence spectroscopy, and optical microscopy.
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