表面修饰的CdS：Mn量子点的合成及发光性质研究

摘要

The CdS:Mn quantum dots were synthesized by using solvothermal method in oleylamine at 160℃ for12 h and modified with Poly(acrylic acid) (PAA). The powder X-ray diffraction (XRD) showed that the JCPDS of CdS:Mn quantum dots were 80-0019. IR absorption spectra showed that the carboxyl group (-COOH) is on the surface of CdS:Mn crystals. At room temperature, the emission peak of CdS:Mn quantum dots was at 526 nm under 360 nm excitation.%在油胺溶剂中，用溶剂热法，160℃加热反应12 h成功合成了CdS：Mn量子点。并用聚丙烯酸（PAA）对油相中合成的CdS：Mn量子点进行了表面修饰。合成的CdS：Mn量子点JCPDS标准卡号为80-0019。IR数据显示，在CdS：Mn量子点表面成功修饰上了羧酸（-COOH）。室温下，360 nm为激发波长，量子点的发射波长位于526 nm。