Anion and Cation Migration at 2D/3D Halide Perovskite Interfaces

PaperLitos lite
Written By Fluxim AG

Raphael F. Moral, Carlo A. R. Perini*, Tim Kodalle, Ahyoung Kim, Finn Babbe, Nao Harada, Javid Hajhemati, Philip Schulz, Naomi S. Ginsberg, Shaul Aloni, Craig P. Schwartz, Juan-Pablo Correa-Baena*, and Carolin M. Sutter-Fella*

ACS Energy Lett. 2024, 9, 6, 2703–2716

Publication Date: May 14, 2024

https://doi.org/10.1021/acsenergylett.4c00728

This study investigates ionic dynamics at 2D/3D halide perovskite interfaces in solar cells, revealing that light and heat induce ion migration. Phenethylammonium halide salts enhance efficiency and stability, with specific migration patterns and phase distributions observed under thermal treatment, impacting photovoltaic performance.

How Litos Lite was used

The photovoltaic performance assessment was conducted utilizing a Fluxim Litos Lite arrangement, which featured a Wavelabs Sinus-70 AAA solar simulator that produced an AM1.5 spectrum for excitation purposes. The current−voltage (J−V) attributes were obtained through both forward and reverse scans, each performed at a scan rate of 50 mV s−1. Stabilized power output measurements were completed utilizing a maximum power point (MPP) tracking algorithm over a span of 60 s.

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