多功能超分子笼的组装、结构及其在光伏器件中的应用探索

项目名称： 多功能超分子笼的组装、结构及其在光伏器件中的应用探索

项目编号： No.21501179

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 戴枫荣

作者单位： 中国科学院福建物质结构研究所

项目金额： 20万元

中文摘要： 以具有桨轮构型的金属结构单元M2(COO)4为构筑基元，采用有机多羧酸配体作为桥联配体，可以自组装构筑新颖的具有独特纳米空腔、多元组分的新型超分子笼材料。选择线性的二羧酸配体或者平面三角构型的三羧酸配体，可以分别得到具有四方盒子构型和八面体构型的超分子笼。选择合适的柱撑配体还可以进一步将四方盒子构型的超分子笼组装成具有一维纳米空腔管道的一维管状超分子笼多聚体。通过对多元组分中的不同有机配体（盖帽配体、桥联配体、柱撑配体等）分别进行结构和功能的修饰，从而获得具有特殊功能化性能的超分子笼材料。通过超分子笼材料与钙钛矿材料形成主客体包含材料的系统表征，探索超分子笼材料在无机-有机杂化钙钛矿太阳电池中的应用基础研究，以期通过提高钙钛矿材料的二维有序排列和稳定性，进而获得光电转换效率高、稳定性好、使用寿命长的无机-有机杂化钙钛矿太阳电池。

中文关键词： 超分子；分子笼；多组分；光伏材料；钙钛矿

英文摘要： A new family of molecular supercontainers, which feature multiple identical components and nano-cavities, will be constructed by the self-assembly of paddle-wheel M2(COO)4 sub-units and carboxylate bridging ligands. The square box shaped and octahedral molecular supercontainers can be obtained when linear dicarboxylate or trigonal tricarboxylate ligands are employed as the bridging ligands, respectively. Connecting by suitable pillar ligands, the square box molecular supercontainers can be further drived to the one dimension (1-D) supercontainer tubes, which contain a remarkable 1-D nano-channel. The structural and functional modifications on the organic ligands (including capping-ligands, bridging-ligands, and pillar-ligands, etc) will result in the specific functionalization on the molecular supercontainers. The properties of the host-guest materials forming between molecular supercontainer and perovskite materials will be fully studied, and then the application of molecular supercontainer in Inorganic-Organic Hybrid Perovskite Solar Cells will be investigated. We envision that the 2-D long term stacking order and stability of perovskite materials can be significantly improved via the host-guest interaction, and a new class of Inorganic-Organic Hybrid Perovskite Solar Cells with higher efficiency, better stability, and longer life time can be constructed from the perovskite-supercontainer hybrid materials.

英文关键词： Supramolecule;molecular-container;multi-component;photovoltaic;perovskite