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Keywords:

  • alloys;
  • bandgap;
  • nanostructures;
  • photocatalysis;
  • semiconductors

Abstract

Rod-like nanocrystals of the semiconductor alloy (ZnS)x(CuInS2)1−x (ZCIS) have been colloidally prepared by using a one-pot non-injection-based synthetic strategy. The ZCIS nanorods crystallize in the hexagonal wurtzite structure and display preferential growth in the direction of the c axis. The bandgap of these quarternary alloyed nanorods can be conveniently tuned by varying the ratio of ZnS to CuInS2. A non-linear relationship between the bandgap and the alloy composition is observed. The ZCIS nanorods are found to exhibit promising photocatalytic behaviour in visible-light-driven degradation of Rhodamine B.