Colloidal indium sulfide quantum dots in water: synthesis and optical properties
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ABSTRACTColloidal β-In2S3 quantum dots stabilized in water by a number of polymers or sodium polyphosphate and mercaptoacetate were synthesized. An increase in the stabilizer content was found to result in a decrease in the average dot size from 20–30 to 5–10 nm and formation of a narrow absorption band centered at 290 nm. The position and spectral width of the band were found to be independent on stabilizer concentration, synthesis temperature and molar In:S ratio. The band was assumed to belong to a molecular cluster smaller than 1 nm which is a precursor for formation of larger regular indium sulfide quantum dots.
2015 ◽
Vol 445
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pp. 337-347
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2017 ◽
Vol 7
(1)
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pp. 73-79
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2019 ◽
Vol 141
(51)
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pp. 20516-20524
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