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发明公开
CN107620052A 一种甲脒铯铅碘钙钛矿薄膜的化学气相沉积制备方法及基于其的光伏器件 有权 转让

一种甲脒铯铅碘钙钛矿薄膜的化学气相沉积制备方法及基于其的光伏器件
摘要：
本发明公开了一种甲脒铯铅碘钙钛矿薄膜的化学气相沉积制备方法及基于其的光伏器件，是分两步制备混合阳离子钙钛矿薄膜，首选将无机阳离子Cs+和碘化铅形成CsxPbI2+x前驱体溶液并旋涂到基底上得到CsxPbI2+x前驱体薄膜，然后将有机阳离子FA通过化学气相沉积方法引入到钙钛矿ABX3体系，即获得FA1-xCsxPbI3钙钛矿薄膜。本发明可精确控制A位置阳离子比例、成本低、简单易操作、重复性好；同时，本发明还将所制FA1-xCsxPbI3薄膜作为光吸收层，制备出FTO/c-TiO2/FA1-xCsxPbI3/Sprio-OMeTAD/Ag结构的钙钛矿太阳电池，首批电池光电效率达到12.67％，并表现出良好的稳定性。
摘要（英）：

The invention discloses a method for preparing a formamidine cesium lead iodine calcium titanium ore thin film through chemical vapor deposition and a photovoltaic device based on the formamidine cesium lead iodine calcium titanium ore thin film. The mixed positive ion calcium titanium ore thin film is prepared through the two steps that firstly, inorganic positive ions Cs + and lead iodide form aCsxPbI2 + x precursor solution and a substrate is spin-coated with the CsxPbI2 + x precursor solution to obtain a CsxPbI2 + x precursor thin film, then organic positive ions FA is led into a calciumtitanium ore ABX3 system through a chemical vapor deposition method, and the FA1-xCsxPbI3 calcium titanium ore thin film is obtained. According to the method for preparing the formamidine cesium leadiodine calcium titanium ore thin film through chemical vapor deposition, the A-position positive ion proportion can be accurately controlled, the cost is low, the method is simple and easy to operate,and the repeatability is good; and meanwhile, the prepared FA1-xCsxPbI3 thin film further serves as a light absorption layer, a calcium titanium ore solar battery of a FTO / c-TiO2 / FA1-xCsxPbI3 / Sprio-OMeTAD / Ag structure is prepared, the photoelectric efficiency of a first batch battery reaches 12.67%, and good stability is showed up.

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