Formation of High-Quality I−III−VI Semiconductor Nanocrystals by Tuning Relative Reactivity of Cationic Precursors
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- 30 March 2009
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 131 (15) , 5691-5697
- https://doi.org/10.1021/ja9005767
Abstract
A method for the synthesis of nearly monodisperse CuInS2 semiconductor nanocrystals (from 2 nanocrystals, which could be prevented by the formation of CuInS2/ZnS core/shell nanocrystals by a one-pot approach. CuInS2/ZnS core/shell nanocrystals also showed greatly improved optical properties, with photoluminescence quantum yield up to about 30% and an emission peak position tunable from 500 to 950 nm. The versatility of the synthetic strategy was demonstrated by extending it to the synthesis of AgInS2 nanocrystals by simply replacing the copper salt by a silver salt.Keywords
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