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Dimensional Mixing Increases the Efficiency of 2D/3D Perovskite Solar Cells.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-06-08 , DOI: 10.1021/acs.jpclett.0c01444 Sam Teale 1 , Andrew H Proppe 1, 2 , Eui Hyuk Jung 1 , Andrew Johnston 1 , Darshan H Parmar 1 , Bin Chen 1 , Yi Hou 1 , Shana O Kelley 2, 3 , Edward H Sargent 1
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-06-08 , DOI: 10.1021/acs.jpclett.0c01444 Sam Teale 1 , Andrew H Proppe 1, 2 , Eui Hyuk Jung 1 , Andrew Johnston 1 , Darshan H Parmar 1 , Bin Chen 1 , Yi Hou 1 , Shana O Kelley 2, 3 , Edward H Sargent 1
Affiliation
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2D/3D heterojunction perovskite solar cells have demonstrated superior efficiency and stability compared to their fully 3D counterparts. Previous studies have focused on producing 2D layers containing predominantly n = 1 perovskite quantum wells. In this report we demonstrate a technique to introduce dimensional mixing into the 2D layer, and we show that this leads to more efficient devices relative to controls. Simulations suggest that the improvements are due to a reduction in trap state density and superior band alignment between the 3D/2D perovskite and the hole-transporting layer.
中文翻译：
尺寸混合可提高2D / 3D钙钛矿太阳能电池的效率。
与2D / 3D异质结钙钛矿太阳能电池相比，其3D异质结具有更高的效率和稳定性。先前的研究集中在生产主要包含n = 1钙钛矿量子阱的2D层。在此报告中，我们演示了一种将尺寸混合引入2D层的技术，并且我们证明相对于控件，这将导致更有效的设备。模拟表明，这种改进归因于陷阱态密度的降低以及3D / 2D钙钛矿与空穴传输层之间的出色能带对准。
更新日期：2020-07-02
中文翻译：
尺寸混合可提高2D / 3D钙钛矿太阳能电池的效率。
与2D / 3D异质结钙钛矿太阳能电池相比，其3D异质结具有更高的效率和稳定性。先前的研究集中在生产主要包含n = 1钙钛矿量子阱的2D层。在此报告中，我们演示了一种将尺寸混合引入2D层的技术，并且我们证明相对于控件，这将导致更有效的设备。模拟表明，这种改进归因于陷阱态密度的降低以及3D / 2D钙钛矿与空穴传输层之间的出色能带对准。
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