ArticleNature communications2022
Direct observation of photoinduced carrier blocking in mixed-dimensional 2D/3D perovskites and the origin.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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Who cites it
5 citing papers in PubMed.
- Synergistic energy and charge transfer dynamics in LD/3D perovskite heterojunctions for optoelectronic applications.Chemical science · 2026Review
- Localized 2D/3D heterojunction enhances photovoltage for perovskite-organic tandem solar cells.Nature communications · 2026Article
- Unraveling Interface-Driven and Loss Mechanism-Centric Phenomena in 3D/2D Halide Perovskites: Prospects for Optoelectronic Applications.ACS omega · 2024Review
- Regulating 3D Phase in Quasi-2D Perovskite Films for High-Performance and Stable Photodetectors.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Fully solution-processed phase-pure 3D/2D perovskite bilayer heterojunctions.Communications chemistry · 2023Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mixed-dimensional 2D/3D halide perovskite solar cells promise high stability but practically deliver poor power conversion efficiency, and the 2D HP component has been held as the culprit because its intrinsic downsides (ill charge conductivity, wider bandgap, and strong exciton binding) were intuitively deemed to hinder carrier transport. Herein, we show that the 2D HP fragments, in fact, allow free migration of carriers in darkness but only block the carrier transport under illumination. While surely limiting the photovoltaic performance, such photoinduced carrier blocking effect is unexplainable by the traditional understanding above but is found to stem from the trap-filling-enhanced built-in potential of the 2D/3D HP interface. By parsing the depth-profile nanoscopic phase arrangement of the mixed-dimensional 2D/3D HP film for solar cells and revealing a photoinduced potential barrier up to several hundred meV, we further elucidate how the photoinduced carrier blocking mechanism jeopardizes the short-circuit current and fill factor.
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Registered trials
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