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Dr. Ajay Singh, Shalini Singh, Dr. Sergiu Levcenko, Dr. Thomas Unold, Dr. Fathima Laffir and Dr. Kevin M. Ryan Compositionally Tunable Photoluminescence Emission in Cu2ZnSn(S1−xSex)4 Nanocrystals Angewandte Chemie International Edition 52

Article first published online: 18 JUN 2013 | DOI: 10.1002/anie.201302867

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Inorganic nanostructures: Alloyed Cu2ZnSn(S1−xSex)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).

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