Abstract:All‐inorganic CsPbI3 perovskite solar cells (PSCs) possess great potential of development with the suitable bandgap and outstanding chemical stability in recent years. However, due to the low tolerance factor of the crystal structure and the high defect density of states within the absorbing layer, CsPbI3 perovskite film displays poor phase stability at room temperature and severe exciton nonradiative loss under illumination conditions. Therefore, a novel multifunctional passivator trifluoroacetamidine (TFA) i… Show more
“…And the lowest current value was closer to the applied bias of 0 V, which could be ascribed to the inhibited halide vacancies and reduced nonradiative recombination after TFS-TFMS modification. 76,77 The built-in electric potential ( V bi ) of PSCs was calculated using eqn (6): 49,78 …”
TFS-TFMS was introduced to modulate the upper interface in n–i–p structured perovskite solar cells, resulting in significantly improved device performance owing to the synergistic engineering of fluorine and sulfonate functional sites.
“…And the lowest current value was closer to the applied bias of 0 V, which could be ascribed to the inhibited halide vacancies and reduced nonradiative recombination after TFS-TFMS modification. 76,77 The built-in electric potential ( V bi ) of PSCs was calculated using eqn (6): 49,78 …”
TFS-TFMS was introduced to modulate the upper interface in n–i–p structured perovskite solar cells, resulting in significantly improved device performance owing to the synergistic engineering of fluorine and sulfonate functional sites.
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