摘要
以半胱氨酸镉配合物为前体,在水溶液中合成CdSe纳米粒子,以CdS对其表面进行修饰,得到具有核壳结构的CdSe/CdS纳米粒子.采用XRD,TEM表征其结构及形貌;以荧光光谱研究了时间、pH值、壳量、壳前体加入方式、稳定剂用量等因素对CdSe/CdS光谱特性的影响.
CdSe nanoparticles capped by CdS were synthesized in the aqueous solution at room temperature using cysteine （Cys） as the stabilizer. X-ray powder diffraction and transmission electron microscopy were used to analyze the core/shell nanoparticle structure and determine their average size, size distribution and shape. Fluorescence spectra were used to probe the effect of time, pH, quantity of shell, adding rate of shell precursors and the quantity of Cys on the spectral characterization of CdSe/CdS.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2006年第22期2265-2270,共6页
Acta Chimica Sinica
基金
973计划(No.2006CB705703)
天津市自然科学基金(No.06YFJMJC02800)
湖南大学化学生物传感与计量学国家重点实验室开放基金(No.2005009)资助项目.
