摘要
采用巯基乙酸作为稳定剂,用水相法合成了ZnS:Er量子点。分别利用X射线衍射、透射电镜、荧光光谱对其物相、形貌及光学性能进行了研究。研究结果表明:合成的ZnS:Er量子点形状为球形,粒度约10 nm。ZnS:Er量子点的发射峰为445 nm和470 nm,分别为S空位和Zn空位发光。
ZnS: Er quantum dots were synthesized by aqueous synthesis approach using thioglycolic acid as stabilizers. The crystalline,microscopy and luminescent properties of ZnS: Er quantum dots were characterized by X-ray diffraction (XRD) ,transmission electron microscopy (TEM) and photoluminescence (PL) spectra. The results show that ZnS: Er quantum dots are spheroidal particles and the size is about 10 nm. In PL spectra, the emission peaks of ZnS: Er are bout 445 nm and 470 nm,which are attributed to sulfur and zinc vacancy.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2013年第5期5-8,4,共4页
Journal of Henan University of Science And Technology:Natural Science
基金
河南省科技发展计划基金项目(092300410135)
河南科技大学大学生研究训练计划(2011073)
关键词
量子点
掺杂
水相法
荧光光谱
quantum dots
doping
aqueous synthesis approach
photoluminescence ( PL) spectra
