title: Application of synchronous fluorescence scan spectroscopy for size dependent simultaneous analysis of CdTe nanocrystals and their mixtures.
abstract: In this paper, synchronous fluorescence scan (SFS) spectroscopy has been applied for the first time for the simultaneous determination of a mixture of CdTe fluorescent nanocrystals (NCs) of various sizes without a pre-separation step. It is observed that synchronous fluorescence maximum correlates well with the size of the nanocrystals, i.e.; the lambda(SFS)(max) is useful to determine size dependency of NCs. Synchronous fluorescence maximum along with the second derivative can identify individual NCs in a mixture in water. The method is found to be simple, sensitive, selective and fast for NCs determination in aqueous media.
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, Riad El Solh, Beirut, Lebanon. dp03@aub.edu.lb
authors.forename: Digambara
authors.initials: D
authors.lastname: Patra
authors.forename: Tarek H
authors.initials: TH
authors.lastname: Ghaddar
mesh_terms: D019187:Cadmium Compounds / Q000032:analysis* / Q000737:chemistry; D002623:Chemistry Techniques, Analytical / Q000379:methods; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013691:Tellurium / Q000032:analysis* / Q000737:chemistry; D013997:Time Factors
chemical_list: D019187:Cadmium Compounds; D013691:Tellurium; C028337:cadmium telluride