Synergistic role of dopants on the morphology of alloyed copper chalcogenide nanocrystals

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

doi:10.1021/jacs.5b02880

Synergistic role of dopants on the morphology of alloyed copper chalcogenide nanocrystals

J Am Chem Soc. 2015 May 27;137(20):6464-7. doi: 10.1021/jacs.5b02880. Epub 2015 May 14.

Authors

Ajay Singh^{1

2}, Amita Singh^{1

2}, Jim Ciston, Karen Bustillo, Dennis Nordlund³, Delia J Milliron¹

Affiliations

¹ †McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States.
² ‡The Molecular Foundry and §National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.
³ ∥Stanford Synchrotron Radiation Lightsource, Stanford, California 94309, United States.

PMID: 25974290
DOI: 10.1021/jacs.5b02880

Abstract

The presence of antimony, as a dopant in the colloidal growth reaction for CuIn(1-x)Ga(x)S2 (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.