NDLI: Spectroscopic and electrochemical study of CdTe nanocrystals capped with thiol mixtures

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Spectroscopic and electrochemical study of CdTe nanocrystals capped with thiol mixtures

Content Provider	Scilit
Author	Matos, Charlene R. S. Souza Jr, Helio O. Candido, Luan P. M. Costa, Luiz P. Santos, Francisco De Assis Alencar, Márcio Abegao, Luis M. G. Rodrigues Jr, Jose J. Sussuchi, Eliana Midori Gimenez, Iara F.
Copyright Year	2016
Description	Journal: Materials Research Express Here we report the aqueous synthesis of CdTe nanocrystals capped with 3-mercaptopropionic acid (MPA) and the evaluation of the effect of mixing different thiols with MPA on the spectroscopic and electrochemical properties. Additional ligands were cysteine (CYS) and glutathione (GSH). CYS and GSH produce opposite effects on the photoluminescence quantum yield (QY) with a decrease and increase in QY in comparison to MPA, respectively. All samples exhibited monoexponential photoluminescence decays indicating the presence of high-quality nanocrystals. Electrochemical measurements evidenced the presence of several redox peaks and allowed the calculation of the electrochemical band gaps, which were in agreement with the values estimated from absorption spectra and reflected differences in nanocrystal size.
Related Links	http://iopscience.iop.org/article/10.1088/2053-1591/3/6/065008/pdf
ISSN	20531591
e-ISSN	20531591
DOI	10.1088/2053-1591/3/6/065008
Journal	Materials Research Express
Issue Number	6
Volume Number	3
Language	English
Publisher	IOP Publishing
Publisher Date	2016-06-01
Access Restriction	Open
Subject Keyword	Journal: Materials Research Express Photoluminescence
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics

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