本研究利用氧化鎘製備CdSe奈米粒子及CdSe/ZnS核-殼結構奈米粒子，並討論製程中反應溫度及昇溫速率變化對奈米粒子形成之影響。隨著反應溫度的提升，CdSe奈米粒子大小亦隨之變大，所對應的激發或放射波譜也隨之往長波長移動，證明所合成奈米粒子具有明顯之量子侷限化效應。隨著昇溫速率的減低，亦可增加CdSe之螢光發光亮度。在CdSe內核表面經ZnS外殼層包覆後，由於內核與外殼之能隙差，使得CdSe/ZnS奈米粒子螢光發生強度大為提升，且粒子大小亦能獲得良好的控制。

　　　　　CdSe nanocrystals and CdSe/ZnS nanocrystals having a core-shell structure were prepared via using CdO in this study. The effects of reaction temperatures and heating rates during synthesis on the formation of CdSe and CdSe/ZnS nanocrystals were investigated. With a rise in the reaction temperature, the particle size of CdSe nanocrystals was increased and the wavelengths of the excitation and emission spectra were shifted towards the long wavelength region. The above phenomena demonstrated strong quantum confinement effects in the synthesized CdSe nanoparticles. Decreasing the heating rate also effectively increased the emission intensity of CdSe. When CdSE nanoparticles were coated with ZnS to form a core-shell structure, the emission intensity was greatly enhanced because of the difference in the band gaps of CdSe and ZnS. CdSe/ZnS nanocrystals with well controlled particle sizes were successfully obtained in this study.