摘要
钙钛矿太阳电池结构分为平板结构和介孔结构。我们设计并构建出一种新型TiO_2嵌入式结构钙钛矿太阳电池,显著提升了钙钛矿电池的器件性能和稳定性,电池效率达到19.2%,在未封装条件下空气中放置28天,依然保持90%的初始效率。这种新型TiO_2嵌入式结构钙钛矿太阳电池相较于传统的平板或者介孔结构钙钛矿电池,展现了优秀的光电性能和长期空气稳定性,TiO_2嵌入式结构促进了钙钛矿中电子和空穴的分离,增强了电子传输,减小了电子空穴间的复合,提升了器件光电转换效率。由于TiO_2纳米颗粒的掺入,促进了钙钛矿的成核生长,得到晶粒尺寸约1μm的大尺寸钙钛矿晶粒,从而大大增加了钙钛矿电池的稳定性。
引文
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