Ultra-uniform perovskite crystals formed in the presence of tetrabutylammonium bistriflimide afford efficient and stable perovskite solar cells

Auteurs

Lim J., Rafieh A.I., Shibayama N., Xia J., Audinot J.N., Wirtz T., Kinge S., Glunz S.W., Ding Y., Ding B., Kim H., Saliba M., Fei Z., Dyson P.J., Nazeeruddin M.K., Kanda H.

Référence

Energy and Environmental Science, vol. 17, n° 21, pp. 8209-8218, 2024

Description

Compositional engineering of organic-inorganic metal halide perovskite allows for improved optoelectrical properties, however, phase segregation occurs during crystal nucleation and limits perovskite solar cell device performance. Herein, we show that by applying tetrabutylammonium bistriflimide as an additive in the perovskite precursor solution, ultra-uniform perovskite crystals are obtained, which effectively increases device performance. As a result, power conversion efficiencies (PCEs) of 24.5% in a cell and 21.2% in a module are achieved, together with high stability under illumination, humidity and elevated thermal conditions.

Lien

doi:10.1039/d4ee01841a

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