Preparation of Hydrophilically Functionalized PbSe Nanrods (PbSeNR) using Block Copolymer
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초록
내용
Quantum dots are semiconductor nanocrystals synthesized with a size of several nanometers in which atoms are gathered in units of thousands, and optical properties can be controlled by adjusting the size, and are easy to process due to excellent solvent dispersibility. In particular, PbSe nanorods (PbSeNR) are 1D nanoparticles with potential applications for gamma-ray shielding. For practical use of PbSeNR, it is easier to disperse it in aqueous solution, which improve the handling convenience of nanoparticles. Therefore, we achieved stable dispersion in aqueous solution by wrapping a block copolymer having both hydrophilic part and hydrophobic part on the surface of PbSeNR through hydrophobic interaction, and analyzed the structure of hydrophilically functionalized PbSeNR in aqueous solution using the small angle x-ray scattering (SAXS) measurements.