Article pubs.acs.org/JPCC
Rate of Cation Exchange and Change in Optical Properties during Transformation of Ternary to Doped Binary Nanocrystals Riya Bose, Santanu Jana, Goutam Manna, Supriya Chakraborty, and Narayan Pradhan* Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata 700032, India S Supporting Information *
ABSTRACT: Introduction of intra bandgap state in semiconductor nanocrystals provides an efficient way to control the separation or recombination of charge carriers and enhances their applicability for light emitting, harvesting, and sensing purposes. This manuscript presents the conversion of ternary CIZS nanocrystals to doped binary alloyed nanocrystals and studies the change in the defect/dopant state induced light-emission activities. Adopting an in situ transformation process by facile ion exchange protocol, the ternary CIZS nanocrystals (Cu >10%) are converted to alloyed binary nanocrystals with
