Synergistic Role of Dopants on the Morphology of Alloyed Copper Chalcogenide Nanocrystals

by Singh, Ajay; Singh, Amita; Ciston, Jim; Bustillo, Karen; Nordlund, Dennis; Milliron, Delia J.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 137(20), pp. 6464-6467

The presence of antimony, as a dopant in the colloidal growth reaction for CuIn1-xGaxS2 (CIGS) nanocrystals, causes end-to-end fusion of nanorod pairs into nanodumbbells at high yield. The influence of the dopant on shape is indirect; antimony catalyzes the incorporation of gallium, which is found in high concentration at the junction between the fused nanorods.

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