CbS 나노입자의 입자크기에 미치는 조성의 영향 = Effect of Composition on Size of CdS Nanoparticles

다국어 초록 (Multilingual Abstract)

Recently, the preparation and the characterization of semiconductor nanoparticles has attracted much attention because of their various applicabilities as quantum dots to nanodevices. In this study, cadmium sulfide (CdS) nanoparticles were prepared by the dissolution of cadmium perchlorate hydrate (Cd(ClO₄)₂·6H₂O) and hydrogen sulfide (H₂S) gas in 2-propanol, the nucleation and the crystal growth of seed. The size of nanoparticles was measured by transmission electron microscopy (TEM) and UV-vis spectroscopy. The particle size was measured as a function of time after the dissolution at particular concentrations of Cd(ClO₄)₂·6H₂O and H₂S. Up to 150 min after the dissolution of the cation and the anion, the particle size remains constant of about 3.8 nm and after 300 min the size increased above 6.7 nm. The effects of concentration of Cd(ClO₄)₂·6H₂O and H₂S on the size of CdS nanoparticles were investigated. With increasing concentration of Cd(ClO₄)₂·6H₂O increases the particle size increased, whereas with increasing concentration of H₂S it decreased.