摘要
应用胶体化学的方法,在溶液中合成了Ⅱ-Ⅵ族化合物—CdSe,CdTe纳米晶粒.紫外-可见光吸收谱(ABS)和光致荧光谱(PL)显示Ⅱ-Ⅵ族纳米晶粒具有良好的单分散性.在室温下利用双功能分子在S i衬底表面组装了Ⅱ-Ⅵ族纳米晶粒,原子力显微镜图像和接触角实验证实,Ⅱ-Ⅵ族纳米晶粒已经自组装到了S i衬底表面,并且表面比较平整,纳米晶粒分布均匀.
The Ⅱ-Ⅳ compound nanocrystals CdSe and CdTe were synthesized in a solution by using a colloid chemistry method. The results of the ultraviolet-visible absorption and the photoluminescence spectra indicate that the nanocrystals have a good monodispersity. These nanocrystals were assembled on Si substrate by bifunctional linker molecule at room tem- perature. The results of atomic force microscopy analysis and contact-angle measurements confirm that the nanocrystals of uniform sizes are bound to Si substrate. The surface is smooth and the nanocrystals have uniform distributions.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2008年第3期176-179,共4页
Journal of Infrared and Millimeter Waves
基金
国家自然科学基金(10574069,90301009,60425414)
国家(973)重点基础研究发展规划(2007CB935400)
关键词
半导体纳米晶体
自组装
双功能分子
刻蚀
semiconductor nanocrystals
self-assembly
bifunctional linker molecule
etch
