| 초록 |
Chiroptical properties have attracted tremendous attention due to their potential applications in many fields. Recently, chiral methylbenzylamine(MBA)-based perovskites have been reported with the high chiroptical properties. However, their synthesis protocols are limited to general perovskite film preparation. In this study, we firstly exploited the block copolymer(BCP) template for the synthesis of chiral perovskite nanocrystals with active chiroptical properties. Due to metal-coordinating interaction between perovskite precursors and inner hydrophilic blocks, S(R)-MBAPbBr3(I3) perovskite nanocrystals were fabricated within the inner cores with strongly ligated hydrophobic polymer ligands. The fabricated perovskite nanocrystals showed remarkably-enhanced and stable chiroptical properties. Our BCP templated synthesis strategy offers a promising way to prepare engineered chiral perovskites which can be applied in advanced chiral optical and optoelectronic devices. |
