格罗宁根大学的Maria Antonietta Loi课题组通过将碘化乙铵(EAI)结合到2D/3D锡钙钛矿膜中,进而改善准二维钙钛矿的取向(其中2D是PEA2FASn2I7,PEA =苯乙铵)。与基于纯3D的FASnI3和 2D/3D的器件相比, EAx2D/3D的器件中的电荷复合损失明显减少。因此,基于组成EA0.082D/3D的钙钛矿的器件效率高达8.4%和更优的重复性。
Shao, S.; Dong, J.; Duim, H.; ten Brink, G. H.; Blake, G. R.; Portale, G.; Loi, M. A. Enhancing the crystallinity and perfecting the orientation of formamidinium tin iodide for highly efficient Sn-based perovskite solar cells. Nano Energy
Doi:https://doi.org/10.1016/j.nanoen.2019.04.040.
http://www.sciencedirect.com/science/article/pii/S2211285519303416