Precipitação seletiva de tamanhos em nanopartículas semicondutoras coloidais de CdTe e CdSe: um estudo por espectroscopia UV-VIS

Autor: Lívia Cristina de Souza Viol, Fernanda Oliveira Silva, Diego Lourençoni Ferreira, José Luiz Aarestrup Alves, Marco Antônio Schiavon
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2011
Předmět:
Zdroj: Química Nova, Vol 34, Iss 4, Pp 595-600 (2011)
Druh dokumentu: article
ISSN: 1678-7064
0100-4042
DOI: 10.1590/S0100-40422011000400008
Popis: The post-preparative size-selective precipitation technique was applied in CdTe and CdSe semiconductor nanocrystals prepared via colloidal route in water. The synthesis of CdTe and CdSe nanoparticles and the effect of the post-preparative size-selective precipitation have been characterized mainly by mean of ultraviolet and visible absorption spectroscopy (UV-Vis). It was demonstrated that the size-selective precipitation are able to isolate particles of different sizes and purify the nanoparticles as well.
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