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Invention Grant
CN107240644B 基于低温锂离子掺杂二氧化钛致密层的高效率平面钙钛矿太阳能电池的制备方法 失效 - 权利终止

基于低温锂离子掺杂二氧化钛致密层的高效率平面钙钛矿太阳能电池的制备方法
Abstract:
本发明公开一种基于低温锂离子掺杂二氧化钛致密层的高效率平面钙钛矿太阳能电池的制备方法。该方法包括以下步骤：首先水解四氯化钛溶液得到TiO2胶体，在FTO导电玻璃上沉积四氯化钛水解的胶体制备TiO2致密层膜，接着采用硅酸锂溶液处理TiO2致密层膜，然后在上面制备CH3NH3PbI3‑x(SCN)x层或CH3NH3PbI3层，再在钙钛矿层上旋涂空穴传导层后，热蒸镀制备Ag电极；即得到钙钛矿电池。与不掺杂锂离子制得的CH3NH3PbI3‑x(SCN)x和CH3NH3PbI3钙钛矿电池相比，本发明通过锂离子掺杂TiO2致密层，以促进电子的传导与收集，进一步提高钙钛矿电池的光电转换效率，且该方法无需额外的设备与复杂的工艺，简单易操作。
Abstract(English):

The invention discloses an efficient plane perovskite solar energy cell preparation method based on low temperature lithium ion doping with a titanium dioxide compact layer; the method comprises the following steps: hydrolyzing a titanium tetrachloride solution so as to obtain a TiO2 colloid; depositing the titanium tetrachloride hydrolyzed colloid on a FTO conductive glass so as to form a TiO2 compact layer film; using a lithium silicate solution to process the TiO2 compact layer film, and forming a CH3NH3PbI3-x(SCN)x layer or a CH3NH3PbI3 layer on the compact layer film; spin coating a cavity conducting layer on a perovskite layer, and heat vapor plating to form an Ag electrode, thus obtaining the perovskite cell. Compared with a CH3NH3PbI3-x(SCN)x and CH3NH3PbI3 perovskite cell with no doped lithium ions, the method dopes lithium ions with the TiO2 compact layer, thus promoting electron conduction and collection, and further improving the perovskite cell photoelectric conversion efficiency; the method needs no extra equipment and complex process, and is simple to operate.

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