1. Shape-controlled synthesis of semiconducting CuFeS2 nanocrystals
- Author
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Wang, Yu-Hsiang A., Bao, Ningzhong, and Gupta, Arunava
- Subjects
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INORGANIC synthesis , *COPPER compounds , *NANOCRYSTALS , *SEMICONDUCTORS , *CHALCOPYRITE , *SOLUTION (Chemistry) , *PARTICLE size distribution , *BAND gaps - Abstract
Abstract: Nanocrystals of the semiconducting chalcopyrite CuFeS2 have been synthesized utilizing a facile solution-based method. Depending on the choice of precursors and synthesis conditions, the nanocrystals exhibit either a spherical (∼12 nm) or pyramidal morphology (∼30 nm), with a narrow size distribution. The band gap of the pyramidal nanocrystals is very close to the bulk value, but a larger band gap is obtained for the spherical nanocrystals likely because of size confinement effect. [Copyright &y& Elsevier]
- Published
- 2010
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