文献类型： 外文期刊
作者： Liu, Li 1 ; Peng, Maomin 2 ; Xia, Hong 2 ; Li, Nan 1 ;
作者机构： 1.Minist Agr China, Key Lab Agrifood Safety & Qual, Beijing 100081, Peoples R China
2.Hubei Acad Agr Sci, Inst Agr Qual Stand & Testing Technol Res, Wuhan 430064, Hubei, Peoples R China
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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