Stability Investigation of CuInS2 based heavy-metal free nanocrystals


In the present work the photostability of high-quality CuInS2 based nanocrystals (Zn-Cu-In-S/ZnSe/ZnS and CuInS2/ZnS core/shell nanocrystals) of different sizes and concentrations were investigated at ambient condition both under UV irradiation and in the darkness. The photostability of commercial CdSe/ZnS core/shell nanocrystals were used as reference to compare to that of CuInS2 based nanocrystals. The half-life times of the CuInS2 base nanocrystals are 2-8 times that of the reference which indicates the CuInS2 base NCs we obtained in the present work are very stable, reliable and competent for the application in biomedical fields.

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Correspondence to Chuang Xie.

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Xie, C., Zhang, Y., Andrew, Y.W. et al. Stability Investigation of CuInS2 based heavy-metal free nanocrystals. MRS Online Proceedings Library 1316, 303 (2011).

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