| 초록 |
Selective control of halogen ion exchange in metal halide nanocrystals plays a very important role in determining the band cap and composition of nanocrystals. The nanocrystals themselves reacted with PbSO4-oleate to form a peapod-like, which selectively controlled halogen ion exchange. Over time, using the in situ UV-Vis. absorption and fluorescence spectroscopy tools, taking advantage of the absorption of the nanocrystals and the bright specific emission properties, to confirm the control of the options and observe the maintenance of the properties of the nanocrystals. Synthesized Peapods as a result of the self-assemble of nanocrystals and PbSO4-oleate, capping nanocrystals, unlike uncapping nanocrystals, have their own special fluorescence and absorption properties over a longer period. The peapods self-assembly process can control the rate of the halide exchange reaction through time adjustment, which can selectively control the band gap and composition ratio of nanocrystals. |
