Thiol-capped CdTe nanoparticles were synthesized in aqueous solution by wet chemical route. CdTe nanoparticles with bifunctional molecule mercaptoacetic acid as a stabilizer were synthesized at pH E 11.2 and using potassium tellurite as tellurium source. The effect of refluxing time on the preparati
Optical characterization of CdS semiconductor nanoparticles capped with starch
✍ Scribed by P. Rodríguez-Fragoso; G. González de la Cruz; S.A. Tomas; O. Zelaya-Angel
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 246 KB
- Volume
- 257
- Category
- Article
- ISSN
- 0169-4332
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surface-charge compensation and it is the best capping agent of the three materials; and Ž . 4 the similar band gaps of CdO and CdS resulted spectroscopically in strong mixing between the excited states of these materials.
The reactions of e,, (CH&COH, and Cd+ with 3 nm CdS particles were investigated by pulse radiolysis. These reactions result in the injection of an excess electron onto the surface of the colloidal particles which leads to a rather drastic bleaching of the absorption of CdS at wavelengths close to th