Journal article
Homogeneously alloyed CdSxSe1-x nanocrystals: synthesis, characterization, and composition/size-dependent band gap
Journal of the American Chemical Society, Vol.128(37), pp.12299-12306
09/20/2006
DOI: 10.1021/ja063939e
PMID: 16967981
Abstract
Alloy nanocrystals provide an additional degree of freedom in selecting desirable properties for nanoscale engineering because their physical and optical properties depend on both size and composition. We report the pyrolytic synthesis of homogeneously alloyed CdS(x)Se(1-x) nanocrystals in all proportions. The nanocrystals are characterized using UV-visible absorption spectroscopy, transmission electron microscopy, X-ray diffractrometry, and Rutherford backscattering spectrometry to determine precisely structure, size, and composition. The dependence of band gap on nanocrystal size and composition is elucidated, yielding a bowing constant of 0.29, in agreement with bulk values. In addition, the morphology of the resultant nanocrystals can be altered by changing the reaction conditions, generating structures ranging from homogeneous, spherical nanocrystals to one-dimensional gradient nanorods.
Details
- Title: Subtitle
- Homogeneously alloyed CdSxSe1-x nanocrystals: synthesis, characterization, and composition/size-dependent band gap
- Creators
- Laura A Swafford - Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235-1822, USALauren A WeigandMichael J Bowers IIJames R McBrideJason L RapaportTony L WattSriram K DixitLeonard C FeldmanSandra J Rosenthal
- Resource Type
- Journal article
- Publication Details
- Journal of the American Chemical Society, Vol.128(37), pp.12299-12306
- Publisher
- United States
- DOI
- 10.1021/ja063939e
- PMID
- 16967981
- ISSN
- 0002-7863
- eISSN
- 1520-5126
- Grant note
- R01 EB003728 / NIBIB NIH HHS
- Language
- English
- Date published
- 09/20/2006
- Academic Unit
- Anesthesia
- Record Identifier
- 9984006359902771
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