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A facile low temperature growth of CdTe nanocrystals using novel dithiocarbamate ligands in aqueous solution

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A facile low temperature growth of CdTe nanocrystals using novel dithiocarbamate ligands in aqueous solution

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dc.contributor.author Yuwen, Lihui
dc.contributor.author Lu, Haoting
dc.contributor.author He, Yao
dc.contributor.author Chen, Liqin
dc.contributor.author Hu, Mei
dc.contributor.author Bao, Biqing
dc.contributor.author Boey, Freddy Yin Chiang
dc.contributor.author Zhang, Hua
dc.contributor.author Wang, Lianhui
dc.date.accessioned 2012-08-14T04:24:36Z
dc.date.available 2012-08-14T04:24:36Z
dc.date.copyright 2010
dc.date.issued 2012-08-14
dc.identifier.citation Yuwen, L., Lu, H., He, Y., Chen, L., Hu, M., Bao, B., et al. (2010). A facile low temperature growth of CdTe nanocrystals using novel dithiocarbamate ligands in aqueous solution. J. Mater. Chem., 20, 2788-2793.
dc.identifier.uri http://hdl.handle.net/10220/8385
dc.description.abstract Proline dithiocarbamic acid disodium salt (ProDTC) was first explored as a novel ligand, instead of the usual used thiols, for the synthesis of CdTe nanocrystals (NCs). Due to the weak bonding between Cd ions and ProDTC, CdTe NCs show rapid nucleation and growth at much lower temperature (30–50 ᵒC) compared to the traditional synthesis in an aqueous solution. Moreover, faster growth of ProDTC-CdTe NCs under lower pH value was observed, while the thiol-CdTe system has an opposite tendency. The distinct growth kinetics is ascribed to the different complex constants between ProDTC-Cd and thiol-Cd, which has significant influence on the monomer activity. Although the photoluminescence quantum yield (PLQY) of as-prepared NCs was relatively low, it can be easily increased up to about 50% after further treatment of ligand exchange by replacing the surface-binding ProDTC molecules with the mercaptopropionic acid.
dc.language.iso en
dc.relation.ispartofseries Journal of materials chemistry
dc.rights © 2010 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Chemistry, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1039/b924579k.
dc.subject DRNTU::Engineering::Materials.
dc.title A facile low temperature growth of CdTe nanocrystals using novel dithiocarbamate ligands in aqueous solution
dc.type Journal Article
dc.identifier.doi http://dx.doi.org/10.1039/b924579k
dc.description.version Accepted version

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