Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 24, Issue 70, Pages 18643-18647Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201804800
Keywords
in situ conversion; liquid synthesis; NIR luminescence; ternary quantum dots
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Funding
- National Natural Science Foundation of China [51872030, 51631001, 21643003, 51702016, 51501010]
- Fundamental Research Funds for the Central Universities [ZDKT18-01]
- State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)
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Differently from the normal three single precursor method to produce colloidal ternary quantum dots (QDs), herein ternary Ag3SbS3 quantum dots (QDs) with efficient near-infrared (NIR) luminescence have been prepared by a new facile in situ conversion of Ag nanocrystals (NCs) with a binary Sb/S organic precursor Sb(C9H19COOS)(3) under low temperature. The unprecedented construction evolution from Ag NCs to Ag3SbS3/Ag hetero-structure and final monodisperse Ag3SbS3 QDs has been demonstrated. These novel Ag3SbS3 QDs exhibit efficient NIR emission at approximate to 1263 nm and possess high colloidal stability.
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