Key factors in the stability of doped ZnSe:Mn@MPA semiconductor nanocrystals

文献类型: 外文期刊

第一作者: Liu, Li

作者: Liu, Li;Li, Nan;Liu, Li;Peng, Maomin;Xia, Hong

作者机构:

关键词: ZnSe:Mn; Stability; Mercaptopropionic acid; Photoluminescence

期刊名称:CHEMICAL PHYSICS LETTERS ( 影响因子:2.328; 五年影响因子:1.999 )

ISSN: 0009-2614

年卷期: 2019 年 730 卷

页码:

收录情况: SCI

摘要: 3-mercaptopropionic acid (MPA) capped ZnSe:Mn semiconductor nanocrystals (ZnSe:Mn@MPA NCs) were prepared in aqueous solution. It was found that the NCs appear as macroscopic precipitates after stored for 10 d. The change law of the NCs in three distinguished stages was studied. The results displayed that the optical stability of as-prepared NCs capped with MPA stabilizer is correlated with the depletion of MPA, which leads to the decomposition of ZnSe:Mn NCs under the existence of photo-induced holes. ZnS protective layer was formed on the surface of ZnSe:Mn@MPA NCs by epitaxial growth method to inhibit the photodegradation of MPA.

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