ArticleScience advances2026
Noncoplanar multidentate contacts reinforce buried interface for perovskite/silicon tandem solar cells.
Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The buried interface between the self-assembled monolayers (SAMs) and the perovskite plays a critical role in device performance and stability in inverted perovskite solar cells (PSCs). However, severe desorption and agglomeration of self-assembled molecules lead to interfacial losses and shorten device longevity. Herein, we design a molecule, 5,5',5″-(nitrilotri-4,1-phenylene)tris[2-thiophenecarboxylic acid] (TTA) with a noncoplanar molecular configuration and multiple functional groups. The noncoplanar molecular configuration could effectively suppress π-π stacking-induced aggregation and enable more regulated molecular packing. Its thiophene functional unit and tridentate carboxylic anchoring groups enhance interactions with substrates and the upper perovskites, assisted by the noncoplanar configuration, which is confirmed by density functional theory (DFT) calculations. When combined with the commonly used 4-(3,6-dimethyl-9
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