ArticleACS applied materials & interfaces2026
Surface Engineering-Induced 2D/3D Interfacial Reconstruction for Stable Low-Light Perovskite Solar Cells.
Article in ACS applied materials & interfaces, 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
Interfacial defects and ion migration critically limit the efficiency and operational stability of perovskite solar cells (PSCs), particularly under low-light conditions where interfacial recombination dominates. Herein, a postsurface treatment using the secondary amine dibutylammonium bromide (DBABr) is introduced to induce controlled 2D/3D interfacial reconstruction through the formation of a thin quasi-two-dimensional perovskite layer on a three-dimensional absorber. This dimensionally reconstructed interface effectively passivates surface defects, suppresses ion migration, and improves energy-level alignment without hindering charge extraction while remaining compatible with both organic and inorganic hole-transport layers (HTL). Under standard one-sun illumination (AM 1.5G), DBABr-treated devices exhibit a significant enhancement in power conversion efficiency (PCE), increasing from 13.82% to 15.52% relative to the control. Furthermore, the reconstructed interface enables efficient indoor energy harvesting, delivering a PCE of 30.57% for 0.09 cm
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