CdTe quantum dots embedded in multidentate biopolymer based on salep: Characterization and optical properties

This paper describes a novel method for surface modification of water soluble cdte quantum dots (qds) by using poly(acrylic acid) grafted onto salep (salep-g-paa) as a biopolymer. as-prepared cdte-salep-g-paa qds were characterized by fourier transform infrared (ft-ir) spectrum,thermogravimetric (tg) analysis,and transmission electron microscopy (tem). the absorption and fluorescence emission spectra were measured to investigate the effect of salep-g-paa biopolymer on the optical properties of cdte qds. the results showed that the optical properties of cdte qds were significantly enhanced by using salep-g-paa-based biopolymer. © 2013 ghasem rezanejade bardajee and zari hooshyar.