Presentation Information
[22p-B205-12]Preparation of Lead Bromide-Based Layered Perovskite Quantum-Well Films by Molecular LEGO Technique and Their Structural and Optical Properties
〇Masanao Era1, Takanori Yamada1, Masato Doi1 (1.Saga Univ.)
Keywords:
lead halide-based perovskites,hybride exciton,anthracene chromophore
We successfully prepared lead bromide layered perovskite organic-inorganic quantum well films in which bulky anthracene chromophores are incorporated parallel to the inorganic semiconductor layer by a molecular mixing procedure (we call the Molecular LEGO technique).For strong interaction between anthracene chromophores and excitons in the inorganic semiconductor layer, the transition moments of anthracene chromophores and excitons in the inorganic layer should be parallel to each other. However, the anthracene chromophore is too large to be placed parallel to the inorganic layer in the layered perovskite structure. In the technique, bulky anthracene chromophores-linked ammonium molecules can be embedded parallel to the inorganic layer by molecularly mixing with the ammonium bromide molecules suitable to make the space for placing the bulky anthracene chromophores. The structure construction behaviors look like LEGO block building at the molecular level.