Alloyed (ZnS)x(CuInS2)1−x Semiconductor Nanorods: Synthesis, Bandgap Tuning and Photocatalytic Properties

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 ba...

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Bibliographic Details
Published in:Chemistry : a European journal 2012-09, Vol.18 (36), p.11258-11263
Main Authors: Ye, Chen, Regulacio, Michelle D., Lim, Suo Hon, Xu, Qing-Hua, Han, Ming-Yong
Format: Article
Language:English
Subjects:
Alloys
bandgap
Chemistry
nanostructures
photocatalysis
semiconductors
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Summary: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. Tuning the bandgap: Colloidal nanorods of the alloyed semiconductor (ZnS)x(CuInS2)1−x (ZCIS) were prepared by using a facile injection‐free synthetic approach. A nonlinear dependence of the semiconductor bandgap on the alloy composition was observed. These alloyed nanorods can be effectively utilized as photocatalysts in visible‐light‐driven dye degradation (see figure).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201201626