(a) Average diameter of the QDs versus synthesis time. (b) Relationship between QDs size and steric hindrance of SL used in the CdTe synthesis. TEM images of CdTe QDs of (c) TGA, (d) MPA, (e) MES, (f) MPS ligands. (g) PL decay curves of CdTe/MPA QDs. (h) PL average lifetime of CdTe QDs as a function of synthesis time.