engleski

Perovskite photovoltaic devices without hysteresis issues based on 1D zincite

The fundament of an effective modern solid state thin-film photovoltaic device is commonly a perovskite absorber layer positioned between two charge transport layers as well as outer electrodes. In terms of achieving high power conversion efficiencies already at low- temperatures commonly just a planar zincite is used mainly due to adequate electronic structure and physical properties. However, for electron transfer layers the semiconductors with advanced geometries have recently started attracting attention, as their raised specific surface area boosts performance. For example, zincite nanorods were used tailored, but such solar cells still display considerable recombination. Also methyl ammonium & formamidinium iodide perovskite solar cells show high performance, but still don’t fully eliminate hysteresis and degradation issues. If methyl ammonium iodide is removed from the composition, pathway to better fill factors and lower rate of hysteresis may be facile. By preparing zincite nanorods via chemical bath synthesis and implementing these in perovskite solar cells without methyl ammonium iodide we were able to shed more light on the preparing effects and influence on the overall perovskite solar cells efficiency. Broad characterization using electric, structural and morphologic tools took place immediately upon the closure of the devices, confirming reliable interfacing of the layers. Finally, we can point out the importance of compositionally and microstructurally implemented devices for the continuation of the development of the photovoltaic area.

Organic perovskite photovoltaics, Nanostructured transport layers, 1D nanostructured Zincite

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