| 초록 |
Processes that require high energy are still being used to make photosensitizers for the solar cells, such as II-IV, III-V, I-III-VI semiconductors, quantum dot (QD, synthesized through hot-injection process). To significantly reduce the energy payback time, we propose a new strategy, namely the synthesis of perovskite quantum dots in ambient conditions, instead of high temperature and inert gas-based synthesis procedures and synthesized using a short ligand instead of the commonly used oleic acid and oleylamine. Through in-situ and ex-situ spectroscopic tools, we proposed the formation mechanism of the QDs made through new synthetic process. In addition, instability against to humidity/water, an inherent problem with perovskite, was addressed through silica coating. We observed that perovskite quantum dot-embedded silica is stable in water for several months. |
