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Investigation of the role of cadmium sulfide in the surface passivation of lead sulfide quantum dots

Abstract:

Surface passivation of PbS nanocrystals (NC), resulting in strong photoluminescence, can be achieved by the introduction of CdS precursors. The role of CdS in the surface passivation of PbS NCs is uncertain, as the crystalline structure of CdS and PbS are different, which should impede effective epitaxial overgrowth. Absorption spectroscopy is used to show that the CdS precursors strongly interact with the PbS NC surface. Electron microscopy reveals that the introduction of CdS precursors res...

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Publication status:
Published

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Journal:
JOURNAL OF CRYSTAL GROWTH
Volume:
270
Issue:
3-4
Pages:
380-383
Publication date:
2004-10-01
DOI:
ISSN:
0022-0248
URN:
uuid:6f7c373b-7297-4c76-9cbc-b0fb183136fb
Source identifiers:
17296
Local pid:
pubs:17296

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