(Zn<SUB>x</SUB>Ag<SUB>y</SUB>In<SUB>z</SUB>) S<SUB>2</SUB> Synthesis Mechanism and Various Ligand Effects According to Components
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Quantum dot is a semiconductor nanoparticle and has excellent photophysical properties, but it is difficult to use biologically because it contains toxic substances such as tellurium and cadmium. So, we synthesized fluorescent nanoparticles using ZAIS, which has almost no heavy metal. We hypothesized that AgInS2 seeds are initially formed at low temperature and Zn layer would be formed as the temperature rises. On the other hand, the distribution of each component of ZnAgInS2 is relatively uniform at high temperature due to the formation of ZnAgInS2 seeds at the temperature. With this mechanism, it was compared with AIS in which Zn was removed. In addition, when other constituents other than AIS are removed, how the mechanism changes according to intensity and temperature. In addition, when other components other than AIS are removed, how the mechanism changes according to intensity and temperature was analyzed.