摘要
以脂肪酸和三辛基氧化膦为表面活性剂,采用高温热解硒与镉的前聚体,制备出分散性好的CdSe纳米晶.吸收光谱和荧光光谱研究表明,控制反应时间可以改变CdSe纳米晶的荧光强度.
Monodisperse surfactant-capped CdSe nanocrystals were prepared by the pyrolysis of ligands of Se and Cd in a hot coordinating solvent. The CdSe nanocrystals synthesized at different reaction times have been characterized by UV-Vis and fluorescence (FL) spectra. Results of UV-Vis and FL spectra showed that the CdSe nanocrystals prepared at the reaction time of 15 min exhibited the largest fluorescence intensity.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2005年第2期113-116,共4页
Acta Physico-Chimica Sinica
基金
国家自然科学基金(60171004)资助项目~~