ArticleEnergy & environmental science2018
Fractional deviations in precursor stoichiometry dictate the properties, performance and stability of perovskite photovoltaic devices.
Article in Energy & environmental science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed.
- Interfacial Energetics in Metal Halide Perovskite Solar Cells.Chemical reviews · 2026Article
- Composition Restoration Enables Recycling of Mixed-Cation, Mixed-Halide Perovskites for Solar Cells.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- The critical role of surface dipoles in CsPbIEnergy & environmental science · 2026Article
- Shifting Defect Self-Regulation via Disordered Vacancies in Hollow Tin Perovskites.Chemistry of materials : a publication of the American Chemical Society · 2026Article
- Separate and combined effects of GuaJournal of materials chemistry. A · 2026Article
- Solvent-Free Fabrication Methods of Metal Halide Perovskites.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- From Chalcogen Bonding to S-π Interactions in Hybrid Perovskite Photovoltaics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Positive and Negative Effects under Light Illumination in Halide Perovskites.Small science · 2024Article
- Charge Trapping and Defect Dynamics as Origin of Memory Effects in Metal Halide Perovskite Memlumors.The journal of physical chemistry letters · 2024Article
- Solvent-free preparation and thermocompression self-assembly: an exploration of performance improvement strategies for perovskite solar cells.RSC advances · 2024Review
- Identification and Mitigation of Transient Phenomena That Complicate the Characterization of Halide Perovskite Photodetectors.ACS applied energy materials · 2023Review
- Surface Engineering of Methylammonium Lead Bromide Perovskite Crystals for Enhanced X-ray Detection.The journal of physical chemistry letters · 2023Article
- Direct Observation of Contact Reaction Induced Ion Migration and its Effect on Non-Ideal Charge Transport in Lead Triiodide Perovskite Field-Effect Transistors.Small (Weinheim an der Bergstrasse, Germany) · 2023Article
- Solvent-antisolvent interactions in metal halide perovskites.Chemical communications (Cambridge, England) · 2023Review
- Towards low-temperature processing of efficient γ-CsPbIJournal of materials chemistry. A · 2023Article
- Remarkable performance recovery in highly defective perovskite solar cells by photo-oxidation.Journal of materials chemistry. C · 2023Article
- Self-Healing Ability of Perovskites Observed via Photoluminescence Response on Nanoscale Local Forces and Mechanical Damage.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Persistent Ion Accumulation at Interfaces Improves the Performance of Perovskite Solar Cells.ACS energy letters · 2022Article
- 23.7% Efficient inverted perovskite solar cells by dual interfacial modification.Science advances · 2021Article
- Printing strategies for scaling-up perovskite solar cells.National science review · 2021Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The last five years have witnessed remarkable progress in the field of lead halide perovskite materials and devices. Examining the existing body of literature reveals staggering inconsistencies in the reported results among different research groups with a particularly wide spread in the photovoltaic performance and stability of devices. In this work we demonstrate that fractional, quite possibly unintentional, deviations in the precursor solution stoichiometry can cause significant changes in the properties of the perovskite layer as well as in the performance and stability of perovskite photovoltaic devices. We show that while the absorbance and morphology of the layers remain largely unaffected, the surface composition and energetics, crystallinity, emission efficiency, energetic disorder and storage stability are all very sensitive to the precise stoichiometry of the precursor solution. Our results elucidate the origin of the irreproducibility and inconsistencies of reported results among different groups as well as the wide spread in device performance even within individual studies. Finally, we propose a simple experimental method to identify the exact stoichiometry of the perovskite layer that researchers can employ to confirm their experiments are performed consistently without unintentional variations in precursor stoichiometry.
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Registered trials
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