Efficient planar perovskite solar cells using halide Sr-substituted Pb perovskite
Efficient planar perovskite solar cells using halide Sr-substituted Pb perovskite
复制标题
使用卤化物 Sr 取代的 Pb 钙钛矿的高效平面钙钛矿太阳能电池
DOI：
10.1016/j.nanoen.2017.04.047
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发表时间：
2017-06-01
期刊：
影响因子：
17.6
通讯作者：
Wang, Mingkui
中科院分区：
文献类型：
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作者：
Shai, Xuxia;Zuo, Lijian;Wang, Mingkui
无机有机卤化物钙钛矿铅太阳电池的稳定性和铅毒性问题严重限制了其商业应用。由于它们的离子半径相似，无毒的锶可以很好地降低铅的利用率。在这里，我们揭示了锶元素替代对钙钛矿薄膜光电性质的显著影响，包括导带边缘能级上移，激子结合能增加，以及由于电中性替代的等电子杂质引起的陷阱密度态。掺入少量的锶(a
Stability and lead toxicity issues of inorganic organic halide lead perovskite solar cells have significantly limited their commercial applications. The nontoxic strontium (Sr) can be a good candidate to reduce lead utilization due to their similar ionic radiuses. Here we uncovered the dramatic influence of Sr element substitution on the optoelectronic properties of perovskite films, including up-shifting conduction band edge energy level, increasing exciton binding energy and trap density states due to the isoelectronic impurity of electric neutral substitution. The incorporation of a small content of Sr (a