Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 17, Pages 5402-5407Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta00191a
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Funding
- Fundamental Research Funds for the Central Universities [2012QNZT022]
- National Natural Science Foundation of China [51204214]
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Multicomponent chalcogenide Cu-2(FexZn1-x)SnS4 nanocrystals were synthesized by a facile solution method. The ratio x of Fe/(Zn + Fe) can be tuned across the entire composition from 0 to 1 by rationally adjusting the Fe/ Zn ratio in metal sources. By varying the value of x, the band gap energy of nanocrystals can be readily tuned from 1.25 eV to 1.52 eV. XRD analysis indicates the structure transition from stannite to kesterite may occur at x = 0.4 for Cu-2(FexZn1-x)SnS4. In addition, photo-electrical conversion performance can be improved by partly substituting Zn with Fe in Cu2ZnSnS4.
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