| 초록 |
The commercialization of QDs synthesized using halide perovskite has major drawbacks in that they are easily decomposed into polar solvents such as water and acetone, have low thermal stability, and are unstable when exposed to external photo sources. Encapsulating the QDs is one way of overcoming these drawbacks. To improve these issues, we have performed the synthesis using amine-group silane through a one-pot process design without base conditions. PLQY of 96.5 % was obtained with the silica core/shell prepared, with improvement of 3.8 % compared to that of the reference sample (92.7 %). Core/shell QDs prevented the degradation of QDs in a polar environment and maintained PL intensity even in a thermal environment. And, it was confirmed that the cohesive force of the core/shell was lowered by the terminal-group through turbiscan, and the stability was maintained for a long time due to its excellent dispersibility. |
