Applied Science and Convergence Technology

Fig. 1. (a) Schematics of an InP/ZnS CQD thin film coating on glass gratings. (b) Cross-sectional TEM image of the fabricated sample. (c) Calculated electric field distribution of a guiding mode in a CQD-coated grating structure. Lumerical FDTD was used in the simulation. Dipole sources were used to find out the guiding mode. Period and thickness of grating structure corresponded to 390 and 150 nm, respectively. The thickness of CQD film was 350 nm. (d) Magnified TEM image of synthesized InP/ZnS CQDs. The diameter of synthesized QDs corresponds to about 3.5 nm.

Applied Science and Convergence Technology 2023;32:23~25 https://doi.org/10.5757/ASCT.2023.32.1.23