Synthesis and Characterization of Poly(acrylic acid) Stabilized Cadmium Sulfide Quantum Dots

Cadmium sulfide (CdS) nanoparticles (NPs) capped with poly(acrylic acid) (PAA) were prepared in aqueous solutions from Cd(NO3)2 and Na2S. Influence of the COOH/Cd ratio (0.8−12.5), reaction pH (5.5 and 7.5), and PAA molecular weight (2100 and 5100 g/mol) on the particle size, colloidal stability, an...

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Veröffentlicht in:	The journal of physical chemistry. B 2007-11, Vol.111 (44), p.12668-12675
Hauptverfasser:	Celebi, Serdar, Erdamar, A. Koray, Sennaroglu, Alphan, Kurt, Adnan, Acar, Havva Yagci
Format:	Artikel
Sprache:	eng
Schlagworte:	Acrylates - chemistry Acrylic Resins - chemistry Cadmium Compounds - chemistry Colloids - chemistry Hydrogen-Ion Concentration Luminescence Molecular Weight Nanoparticles - chemistry Particle Size Photochemistry Polymers - chemical synthesis Polymers - chemistry Quantum Dots Solutions - chemistry Sulfides - chemistry Surface Properties Water - chemistry
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Beschreibung
Zusammenfassung:	Cadmium sulfide (CdS) nanoparticles (NPs) capped with poly(acrylic acid) (PAA) were prepared in aqueous solutions from Cd(NO3)2 and Na2S. Influence of the COOH/Cd ratio (0.8−12.5), reaction pH (5.5 and 7.5), and PAA molecular weight (2100 and 5100 g/mol) on the particle size, colloidal stability, and photoluminescence were investigated. A Cd/S ratio of
ISSN:	1520-6106 1520-5207
DOI:	10.1021/jp0739420