Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 43, Pages 23136-23140Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm33574c
Keywords
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Funding
- National Natural Science Foundation of China [21071142, 51172229]
- Fund for Creative Research Groups [20921002]
- Natural Science Foundation for Young Scientists of Jilin Province [20100105]
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Quaternary semiconductor Cu2MSnS4 (M = Co2+, Fe2+, Ni2+, Mn2+) nanocrystals have been successfully synthesized via a simple and mild solvothermal method. Cu2FeSnS4 and Cu2CoSnS4 show a spherical shape; Cu2NiSnS4 and Cu2MnSnS4 possess a nail-like structure and a rod-like structure. The four types of nanocrystals exhibit significantly different magnetic properties. Cu2FeSnS4 and Cu2CoSnS4 nanoparticles show ferromagnetic behavior; Cu2MnSnS4 and Cu2NiSnS4 nanorods exhibit superparamagnetic behavior at low temperature. The band gaps of Cu2MSnS4 (M = Co, Fe, Ni, Mn) nanocrystals are in the range of 1.2-1.5 eV, indicating a high potential application in low-cost thin film solar cells.
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