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Compositionally Tunable Photoluminescence Emission in Cu 2 ZnSn(S 1− x Se x ) 4 Nanocrystals
Author(s) -
Singh Ajay,
Singh Shalini,
Levcenko Sergiu,
Unold Thomas,
Laffir Fathima,
Ryan Kevin M.
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201302867
Subject(s) - photoluminescence , nanocrystal , materials science , optoelectronics , nanotechnology , crystallography , chemistry
Inorganic nanostructures : Alloyed Cu 2 ZnSn(S 1− x Se x ) 4 wurtzite nanocrystals (10 nm in size) with a varying composition ( x =0–1) were synthesized using a colloidal hot injection route. A photoluminescence (PL) emission study of these nanocrystals shows a compositionally tunable band‐gap ranging between 0.9–1.4 eV that directly correlates to the sulfur‐to‐selenium ratio (see picture).