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Title: Synthesis of PbS nanocrystals from sulfur-amine solutions at room temperature
Authors: Si, H.-Y. 
Yuan, D. 
Chen, J.-S. 
Chow, G.-M. 
Issue Date: 7-Oct-2011
Citation: Si, H.-Y., Yuan, D., Chen, J.-S., Chow, G.-M. (2011-10-07). Synthesis of PbS nanocrystals from sulfur-amine solutions at room temperature. RSC Advances 1 (5) : 817-822. ScholarBank@NUS Repository.
Abstract: Different sizes of PbS nanocrystals (NCs) were synthesized from sulfur-amine solution. Instead of using a hot-injection method, we prepared alkylamine-PbS NCs at room temperature in air, where the produced PbS NCs were dispersed in a non-polar solvent. In this work, alkylamine played dual roles as both reducing agent and surfactant. The size of PbS NCs could be tuned by controlling the reaction time, the concentration of precursor, the volume ratio of alkylamine to water, as well as the length of alkylamine. This new preparation method to produce PbS NCs especially using shorter length alkylamines such as octylamine as capping molecules, showed great potential in developing nanomaterials for optical devices. This journal is © The Royal Society of Chemistry 2011.
Source Title: RSC Advances
ISSN: 20462069
DOI: 10.1039/c1ra00279a
Appears in Collections:Staff Publications

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