Synthesis and optical properties of CdSe Quantum Dots

소개글

"Synthesis and optical properties of CdSe Quantum Dots"에 대한 내용입니다.

목차

1. Abstract
2. Introduction
3. Method
4. Result & Discussion
5. Conclusion
6. Reference

본문내용

Nanomaterials can change their physical properties by only changing their nanometer size. Quantum dots are nano materials that change their optical properties depending on size change. In this experiment, CdSe will be synthesized, and the size change of CdSe in short time intervals will be observed by PL spectrometer and UV-Vis spectrometer. Furthermore, by the data recognized from spectrometers, optical properties of CdSe that change by size change will be predicted by particle in a box model, and size of CdSe particles will be calculated by empirical fitting equation. Moreover, full width at half maximum for emission band and absorption band will be measured to explain size distribution in nanoparticle, and absorbance value will be correct by this value. Finally, concentration of quantum dot sample will be measured. By comparing all of these data, it will be possible to discover optical changes of CdSe in quantum dot range.

참고 자료

Synthesis and optical properties of CdSe quantum dots – 2021 physical methods in chemistry 2 lab manual.
Yu, W. W., et al, Experimental Determination of the Extinction Coefficient of CdTe,CdSe, and CdS Nanocrystals, Chem. Mater. 2003, 15, 2854–2860
Winkelmann K., et al, Preparation of CdS Nanoparticles by First-Year Undergraduates J. Chem. Educ. 2007, 84, 709-710
E. M. Boatman, G. C. Lisensky, and K. J. Nordell, A Safer, Easier, Faster Synthesis for CdSe Quantum Dot Nanocrystals, J. Chem. Educ. 2005, 82, 1697-1699.