Title :
A Comparative Study of Spectral Characteristics of CdSe and CdSe/ZnS Quantum Dots
Author :
Cheng, Cheng ; Wang, Xiaoyan
Author_Institution :
Coll. of Sci., Zhejiang Univ. of Technol., Hangzhou
Abstract :
The absorption-emission spectra of the CdSe quantum dots (QDs) about 3.0-nm diameter and CdSe/ZnS QDs about 3.9-nm diameter are measured. The peak value of the absorption cross-section of CdSe and CdSe/ZnS QDs is determined by Beer-Lambert law according to the sample concentrations and the diameters of the QDs. A comparative study of spectral characteristics of CdSe and CdSe/ZnS QDs is showed in this paper.
Keywords :
II-VI semiconductors; cadmium compounds; fluorescence spectroscopy; semiconductor quantum dots; ultraviolet spectra; visible spectra; zinc compounds; Beer-Lambert law; CdSe; CdSe-ZnS; absorption-emission spectra; fluorescence spectroscopy; sample concentrations; sample diameters; semiconductor quantum dots; size 3.0 nm; size 3.9 nm; spectral characteristics; ultraviolet-visible absorption spectroscopy; Biomedical optical imaging; Electromagnetic wave absorption; Nanocrystals; Oscillators; Potential well; Powders; Quantum dot lasers; Quantum dots; Spectroscopy; Zinc compounds;
Conference_Titel :
Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
0-7803-9773-8
Electronic_ISBN :
0-7803-9774-6
DOI :
10.1109/METAMAT.2006.334917
