PbI-based layered perovskite organic-inorganic superlattice film by the Langmuir-Blodgett technique
PbI-based layered perovskite organic-inorganic superlattice film by the Langmuir-Blodgett technique
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DOI：
10.1080/10587250108030073
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发表时间：
2001-01-01
影响因子：
0.7
通讯作者：
Shimizu, A
中科院分区：
文献类型：
--
作者：
Era, M;Shimizu, A
通过连续沉积二十二烷基铵，成功地制备了具有超晶格结构的PbI基层状钙钛矿薄膜（C_（22）H_（45）NH_3）（2）PbI_4。单层，其通过使用Langmuir-Blodgett（LB）技术铺展在含有PbI 2和甲基碘化铵的水溶液上。LB膜在500 nm附近表现出尖锐而强的激子吸收，这是基于PbI的层状钙钛矿的特征。此外，X射线衍射测量表明，层间距为3.2 mn的层结构平行于膜平面取向。
Thin film of PbI-based layered perovskite having an superlattice Structure, (C22H45NH3)(2)PbI4, Was successfully prepared through successive deposition of docosylammonium. monolayer, which was spread on an aqueous solution containing of PbI2 and methyammonium iodide, by using the Langmuir-Blodgett (LB) technique. The LB film exhibited a sharp and strong exciton absorption around 500 mn which is characteristic of PbI-based layered perovskite. In addition, X-ray diffraction measurement demonstrated that the layer structure with a layer spacing of 3.2 mn was oriented parallel to the film plane.