| 초록 |
We have synthesized highly luminescent nanocomposites composed of colloidal CdSe/ZnS quantum dots (QDs) dispersed in silica matrix. The self-assembled ensembles of QDs, CdSe/ZnS were formed with spray dispersion method. Subsequently, SiO2 layers were directly formed on the QD ensembles using conventional sol-gel process. The photoluminescence properties of resultant QD-silica nanocomposite particles were investigated to check their performance. Interestingly, the position of photoluminescence spectra (PL) was blue-shifted and we checked the nanocomposites with Raman spectroscopy. Further, we applied the nanocomposite to improve the emission spectrum of the white LED. |
