有机-无机杂化钙钛矿具有良好的光电性能，在太阳能电池、发光二极管、荧光探针等领域有着优良的应用前景。因其特殊的片层连接，结构的灵活性、元素的多样性，对于杂化钙钛矿的光学性能调控也多种多样。本次试验开展了创新合成有机-无机杂化钙钛矿的研究——通过温和的溶剂热合成法合成三种层状杂化钙钛矿：(C4H9NH3)2PbI4 、(C4H9NH3)2PbBr4 、(C4H9NH3)2PbI2Br2。探索最佳的合成条件，包括温度、时间、酸的种类。三种实验产物分别使用XRD进行晶体结构判断，SEM进行形貌表征、紫外-可见光吸收光谱法确定物质的吸收光谱，最后使用荧光分析探索光电性能。本实验合成及研究的层状类钙钛矿有机-无机杂合物是一种从三维ABX3结构衍生出来的具有独特结构和性能的类钙钛矿结构化合物，这三种化合物具有类钙钛矿典型的层状结构：卤素离子和无机金属离子构成八面体结构，通过共价键、离子键形成二维的平面层，相邻的钙钛矿层之间排列着有机阳离子，有机阳离子用来连接两个无机层，通过这种有机层与无机层交替的形式，类杂化钙钛矿在三维方向上延展排列形成成“三明治”样的Ⅰ型量子阱结构。因此可以用变换无机和有机元的组成来改变或调节量子阱的阱深、阱宽、势垒高度和宽度，可以有选择性地调节和控制材料的电子学性能。

The organic-inorganic hybrid perovskite has super photoelectric properties, and has good application prospects. For example, it can be used in solar cell, light-emitting diode, fluorescent probe and so on. We have a variety of method to regulation its photoelectric properties, because the special layered, flexible structure and diverse elements of hybrid perovskite. This work was be carried out innovative research——using mild solvothermal synthesis to synthesized three latered hybrid perovskite: (C4H9NH3)2PbI4, (C4H9NH3)2PbBr4 and (C4H9NH3)2PbI2Br2. We will explore the optimized synthesis conditions, including temperature, time and the type of acid. The crystal structure determination of three experimental product was detected by XRD. And SEM was used to characterize their morphology. Their optical absorption properties was spectroscopy by UV-Vis absorption spectroscopy. Finally, the fluorescence was used to explore their photoelectric properties. The layered perovskite type organic-inorganic hybrid is a kind of perovskite structure with unique structure and properties, which is derived from the three-dimensional ABX3 perovskite structure. It has typical layered structure: the octahedron composed of [PbX6]4- are connected to the inorganic layer into inorganic layers. Organic cations (which can be used as the insulating layers) are arranged between two adjacent inorganic layers. The organic layer and the inorganic layer are alternately arranged in the third dimension to form a sandwich like quantum well structure. The electronic properties of the material can be continuously adjusted and controlled by changing or adjusting the well depth, well width, barrier height and barrier width by changing the composition of the inorganic and organic elements.