胶体法制备CdSe纳米晶

无机材料学报

胶体法制备CdSe纳米晶

陈异; 高濂

中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室上海 200050

收稿日期:2001-10-22 修回日期:2001-12-14 出版日期:2002-11-20 网络出版日期:2002-11-20

Synthesis of CdSe Nanocrystals by Using Colloidal Methods

CHEN Yi; GAO Lian

State Key Lab of High Performance Ceramics & Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China

Received:2001-10-22 Revised:2001-12-14 Published:2002-11-20 Online:2002-11-20

摘要/Abstract

摘要： 采用胶体软化学方法,用磷酸三丁酯(TBP)溶解硒粉和氯化镉,在辅助溶剂三辛基氧化磷(TOPO)中加热分解前驱物并化学键合,制备出了边长约为60nm三角锥型的CdSe纳米晶.用TEM、AFM和UV-vis吸收光谱对所得纳米晶进行了表征.

关键词: 软化学方法, CdSe, TOPO

Abstract: CdSe nanocrystals were synthesized in tributylphophine (TBP) and tri-n-octylphosphine (TOPO) solvent by using a soft chemistry method. In contract to other methods, the reagent was injected several times while keeping the temperature over a period of time. TEM, AFM UV-vis were used to show the structure character of the nanocrystals. The formation mechanism of the nanocrystals was also discussed. The as-synthesized nanocrystal is shaped like a triangle cone with nearly equal sides of 60nm.

Key words: soft chemistry, CdSe, TOPO

中图分类号:

TB383

陈异,高濂. 胶体法制备CdSe纳米晶[J]. 无机材料学报.

CHEN Yi,GAO Lian. Synthesis of CdSe Nanocrystals by Using Colloidal Methods[J]. Journal of Inorganic Materials.

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