Perovskite solar cells'' lead toxicity and leakage are key obstacles to commercialization. Here, we introduce a diazapolyoxamacrobicycle structure of cryptand 222
AI Customer ServiceConsidering the well-understood and essential nature of non-covalent interactions in supramolecular chemistry, our discovery unlocks a design principle for tuning
AI Customer ServiceIn the context of perovskite solar cells (PSCs), enhancing device performance often involves adding a small excess of lead iodide (PbI2) to the precursor solution. However, the presence of unreacted PbI2 can lead to
AI Customer Servicesolar cells with a tailored supramolecular interface Chenxu Zhao 1,2,3,10, Zhiwen Zhou1,4,10, stability of perovskite solar cells (PSCs). Addressing this issue, we introduce a
AI Customer ServiceIn this work, the ligand-to-metal charge transition and Förster resonance energy transfer process is exploited to derive lanthanide organic framework (Tb-cpon)
AI Customer ServiceAs a result, we demonstrate a stability enhancement of the perovskite solar cells upon supramolecular modulation, without compromising the photovoltaic performances.
AI Customer ServicePerovskite solar cells'' lead toxicity and leakage are key obstacles to commercialization. Here, we introduce a diazapolyoxamacrobicycle structure of cryptand 222
AI Customer ServiceBenefiting from the self-sealing effect of the S-DTF, the perovskite solar cells with hydrophobic S-DTF exhibits a high long-term stability (maintaining 93% of their original
AI Customer ServiceMultiple supramolecular synergistic interaction between A15C5 and perovskite dramatically suppress and passivate defects, resulting in a 38% decrease in electron trap-state density in perovskite. The formation of two
AI Customer ServiceLanthanide Three-Dimensional Supramolecular Framework Boosts Stable Perovskite Solar Cells with High Uv Utilization. Wei Wang, Wei Wang. MIIT Key Laboratory of
AI Customer ServiceIn the context of perovskite solar cells (PSCs), enhancing device performance often involves adding a small excess of lead iodide (PbI2) to the precursor solution. However,
AI Customer ServiceMultiple supramolecular synergistic interaction between A15C5 and perovskite dramatically suppress and passivate defects, resulting in a 38% decrease in electron trap
AI Customer Serviceperovskite solar cells. Additional tests with maltose as a non-cyclic control were conducted and confirm the superior ability of b-CD to enhance perovskite film stability under harsh
AI Customer ServiceIn this work, the ligand-to-metal charge transition and Förster resonance energy transfer process is exploited to derive lanthanide organic framework (Tb-cpon)
AI Customer ServiceReducing lead toxicity of perovskite solar cells with a built-in supramolecular complex. Perovskite solar cells (PSCs), as an emerging renewable energy technology, are
AI Customer ServiceThere has been an ongoing effort to overcome the limitations associated with the stability of hybrid organic–inorganic perovskite solar cells by using different organic agents as additives to
AI Customer ServiceSupramolecular interface design and structural characterizations. Figure 1a shows the concept of the supramolecular interface design in this work. First, the perovskite
AI Customer Service2D perovskite passivation strategies effectively reduce defect-assisted carrier nonradiative recombination losses on the perovskite surface. Nonetheless, severe energy
AI Customer ServiceAs a result, we demonstrate a stability enhancement of the perovskite solar cells upon supramolecular modulation, without compromising the photovoltaic performances.
AI Customer ServiceWe fabricated n = 1 2D perovskite solar cells to demonstrate how altering the properties of 2D perovskites impact solar cell performance and find that solar cell performance...
AI Customer ServiceSimilar to organic solar cells 9,10,11 and dye-sensitized solar cells 12, perovskite solar cells (PSCs) have a shorter energy payback time (more than 4 times) and
AI Customer ServiceHost-guest complexation offers a promising approach for mitigating surface defects in perovskite solar cells (PSCs). Crown ethers are the most widely used macrocyclic
AI Customer ServiceOne of the critical issues in perovskite solar cells (PSCs) is the open-circuit voltage (VOC) deficit due to surface or grain boundary defects. A dual-ion passivation strategy using TFA− and DPA+ achieved supramolecular
AI Customer ServiceHost-guest complexation offers a promising approach for mitigating surface defects in perovskite solar cells (PSCs). Crown ethers are the most widely used macrocyclic
AI Customer ServiceIt is shown that trap states at the perovskite surface generate charge accumulation and consequent recombination losses in working solar cells and the surface
AI Customer ServiceWe elucidate its binding mode using two-dimensional solid-state 19 F NMR spectroscopy in conjunction with density functional theory calculations. As a result, we demonstrate a stability enhancement of the perovskite solar cells upon supramolecular modulation, without compromising the photovoltaic performances.
Host-guest complexation offers a promising approach for mitigating surface defects in perovskite solar cells (PSCs). Crown ethers are the most widely used macrocyclic hosts for complexing perovskite surfaces, yet their supramolecular interactions and functional implications require further understanding.
Molecular modulators have been demonstrated to be an effectual strategy for reducing the defect at the interface and in bulk of perovskite and ameliorating the performance and stability of perovskite solar cells (PSCs).
Similar to organic solar cells 9, 10, 11 and dye-sensitized solar cells 12, perovskite solar cells (PSCs) have a shorter energy payback time (more than 4 times) and lower equivalent greenhouse gas emissions than state-of-art crystalline silicon (c-Si) solar cells (less than 2 times) over their lifecycle 13.
The formation of a supramolecular system between β-CD and perovskite holds promise as a strategy to control perovskite precursor chemistry, material structure, and subsequent device performance and stability.
We revealed the potential interaction mechanism between supramolecular network and the perovskite by a series of tests: the formation of adducts between S-DTF and perovskite precursor retards crystallization, resulting in high crystallinity and significantly enlarged grains.
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