Enhancement of Fluorescence in Colloidal CuInS2 Nanocrystals by Introduction of Crystal Defect
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AbstractCu-In-S nanocrystals were developed as a low toxic fluorescent. The stoichiometric CuInS2 nanocrystals were synthesized facilely by heating a solution of metal complexes. The fluorescence would be originated from the crystal defect. We intentionally introduced the crystal defects related to Cu deficiency in nanocrystal with the prospect that the fluorescence intensity would be increased. The nanocrystals have many defects without phase separation as observed in bulk material. Consequently, the fluorescence quantum yield achieved to c.a. 6%. Moreover, the fluorescence quantum yield was increased up to 15% by the ZnS-coating.
2014 ◽
Vol 53
(5)
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pp. 1346-1350
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1998 ◽
Vol 237
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pp. 183-193
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2003 ◽
Vol 48
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pp. 4135-4149
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1994 ◽
Vol 59
(3)
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pp. 125-133
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