Post-synthesis Emission Control of CdSe-ZnS Quantum Dots by Surface Oxidation through In Situ Generation of Oxidant under Mild Reaction Conditions

作者：Kim Yong Tae; Il Kim Jae; Lee Jin Kyu^*; Chae Hee K

来源：Chemistry Letters, 2009, 38(8): 862-863.

DOI：10.1246/cl.2009.862

We proposed in situ generation of cyclohexenyl peroxide as a surface oxidant in solution of CdSe quantum dots and verified it by monitoring emission wavelengths and intensities of CdSe and CdSe-ZnS in cyclohexene, respectively. A clear 80 nm blue shift in the emission was observed in CdSe-ZnS over 3 mon due to the slow diffusion of the oxidant, while a 10 nm shift was in CdSe for 24 h.

• 出版日期2009-8-5