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Beyond Ion Migration in Metal Halide Perovskites: Toward a Broader Photoelectrochemistry Perspective

Journal Article · · ACS Energy Letters

Ion migration is a broad term used to account for the degradation of halide perovskite materials and devices. However, ion mobility is only one piece of the full picture-mobile ions/defects are first created, then transported, and eventually annihilated or immobilized. In this Perspective, we summarize emerging work that shows how tractable photochemical and Faradaic reactions provide a continuous source of ions to migrate. Furthermore, we discuss strategies to fundamentally manipulate ion migration by targeting specific electrochemical and reduction/oxidation mechanisms. This highlights the important role of defect photoelectrochemistry, as well as the soft nature of the perovskite lattice, in ion migration and self-healing. We conclude that distinguishing more detailed processes involved in “ion migration”, with an emerging focus on the reactions that form mobile ionic defects, is necessary to greatly improve the stability of devices and open up more technological applications.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2447472
Report Number(s):
NREL/JA-5900-89266; MainId:90045; UUID:130c28cc-e892-4ce0-a8a4-0c0d9e7d19f7; MainAdminId:73787
Journal Information:
ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 9 Vol. 9
Country of Publication:
United States
Language:
English

References (73)

Cu(In,Ga)Se2 Solar Cells: Device Stability Based on Chemical Flexibility journal August 1999
Overcoming Zinc Oxide Interface Instability with a Methylammonium‐Free Perovskite for High‐Performance Solar Cells journal June 2019
Iodine Electrochemistry Dictates Voltage‐Induced Halide Segregation Thresholds in Mixed‐Halide Perovskite Devices journal June 2022
Ag Electrode Anticorrosion in Inverted Perovskite Solar Cells journal September 2023
Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes Enabled by a Universal Crosslinking Method journal March 2016
Defect Activity in Lead Halide Perovskites journal September 2018
Electrochemical Doping of Halide Perovskites by Noble Metal Interstitial Cations journal June 2023
Triiodide Attacks the Organic Cation in Hybrid Lead Halide Perovskites: Mechanism and Suppression journal August 2023
Silver Iodide Formation in Methyl Ammonium Lead Iodide Perovskite Solar Cells with Silver Top Electrodes journal July 2015
Ion Migration and the Role of Preconditioning Cycles in the Stabilization of the J - V Characteristics of Inverted Hybrid Perovskite Solar Cells journal October 2015
Critical Role of Grain Boundaries for Ion Migration in Formamidinium and Methylammonium Lead Halide Perovskite Solar Cells journal May 2016
Inorganic CsPb 1− x Sn x IBr 2 for Efficient Wide-Bandgap Perovskite Solar Cells journal May 2018
Incorporating Electrochemical Halide Oxidation into Drift‐Diffusion Models to Explain Performance Losses in Perovskite Solar Cells under Prolonged Reverse Bias journal January 2021
Negligible Ion Migration in Tin‐Based and Tin‐Doped Perovskites journal December 2022
Mobile Ion Concentration Measurement and Open-Access Band Diagram Simulation Platform for Halide Perovskite Solar Cells journal January 2020
The role of halide oxidation in perovskite halide phase separation journal September 2021
Reverse-bias resilience of monolithic perovskite/silicon tandem solar cells journal September 2023
Halide Ion Migration in Perovskite Nanocrystals and Nanostructures journal January 2021
Ion Migration in Organometal Trihalide Perovskite and Its Impact on Photovoltaic Efficiency and Stability journal January 2016
What Is Moving in Hybrid Halide Perovskite Solar Cells? journal February 2016
Hybrid Organic–Inorganic Perovskites on the Move journal February 2016
Intriguing Optoelectronic Properties of Metal Halide Perovskites journal June 2016
Influence of Dynamic Disorder and Charge–Lattice Interactions on Optoelectronic Properties of Halide Perovskites journal February 2021
Tin versus Lead Redox Chemistry Modulates Charge Trapping and Self-Doping in Tin/Lead Iodide Perovskites journal April 2020
Ionic–Electronic Ambipolar Transport in Metal Halide Perovskites: Can Electronic Conductivity Limit Ionic Diffusion? journal December 2017
Stabilized Wide Bandgap Perovskite Solar Cells by Tin Substitution journal November 2016
Dynamics of Photoinduced Degradation of Perovskite Photovoltaics: From Reversible to Irreversible Processes journal January 2018
Electrochemical and Thermal Etching of Indium Tin Oxide by Solid-State Hybrid Organic–Inorganic Perovskites journal July 2019
Low Threshold Voltages Electrochemically Drive Gold Migration in Halide Perovskite Devices journal October 2020
Organic Hole Transport Material Ionization Potential Dictates Diffusion Kinetics of Iodine Species in Halide Perovskite Devices journal January 2021
The Significance of Polarons and Dynamic Disorder in Halide Perovskites journal May 2021
Are Defects in Lead-Halide Perovskites Healed, Tolerated, or Both? journal October 2021
Assessing the Drawbacks and Benefits of Ion Migration in Lead Halide Perovskites journal September 2022
Halogen Redox Shuttle Explains Voltage-Induced Halide Redistribution in Mixed-Halide Perovskite Devices journal December 2022
Mitigating Iodine Diffusion by a MoO3–Organic Composite Hole Transport Layer for Stable Perovskite Solar Cells journal November 2023
Defect-Assisted Photoinduced Halide Segregation in Mixed-Halide Perovskite Thin Films journal May 2017
Shift Happens . How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites journal June 2017
Vacancy-Mediated Anion Photosegregation Kinetics in Mixed Halide Hybrid Perovskites: Coupled Kinetic Monte Carlo and Optical Measurements journal September 2018
Formation of Surface Defects Dominates Ion Migration in Lead-Halide Perovskites journal February 2019
Origins of Photoluminescence Instabilities at Halide Perovskite/Organic Hole Transport Layer Interfaces journal May 2023
Anomalous Hysteresis in Perovskite Solar Cells journal April 2014
Hybrid organic—inorganic perovskites: low-cost semiconductors with intriguing charge-transport properties journal January 2016
Fast oxygen diffusion and iodide defects mediate oxygen-induced degradation of perovskite solar cells journal May 2017
Giant switchable photovoltaic effect in organometal trihalide perovskite devices journal December 2014
Dynamic shortening of disorder potentials in anharmonic halide perovskites journal July 2019
Reconfigurable halide perovskite nanocrystal memristors for neuromorphic computing journal April 2022
Redox mediator-stabilized wide-bandgap perovskites for monolithic perovskite-organic tandem solar cells journal January 2024
Inhibition of halide oxidation and deprotonation of organic cations with dimethylammonium formate for air-processed p–i–n perovskite solar cells journal February 2024
Minimizing hydrogen vacancies to enable highly efficient hybrid perovskites journal April 2021
A multiscale ion diffusion framework sheds light on the diffusion–stability–hysteresis nexus in metal halide perovskites journal February 2023
Controlling competing photochemical reactions stabilizes perovskite solar cells journal May 2019
Surface reaction for efficient and stable inverted perovskite solar cells journal September 2022
Towards linking lab and field lifetimes of perovskite solar cells journal September 2023
Understanding the rate-dependent J–V hysteresis, slow time component, and aging in CH 3 NH 3 PbI 3 perovskite solar cells: the role of a compensated electric field journal January 2015
Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics journal January 2015
Grain boundary dominated ion migration in polycrystalline organic–inorganic halide perovskite films journal January 2016
Migration of cations induces reversible performance losses over day/night cycling in perovskite solar cells journal January 2017
Iodine chemistry determines the defect tolerance of lead-halide perovskites journal January 2018
Amine additive reactions induced by the soft Lewis acidity of Pb 2+ in halide perovskites. Part I: evidence for Pb–alkylamide formation journal January 2019
Amine additive reactions induced by the soft Lewis acidity of Pb 2+ in halide perovskites. Part II: impacts of amido Pb impurities in methylammonium lead triiodide thin films journal January 2019
Atomistic origin of lattice softness and its impact on structural and carrier dynamics in three dimensional perovskites journal January 2022
The pursuit of stability in halide perovskites: the monovalent cation and the key for surface and bulk self-healing journal January 2021
Lateral ion migration accelerates degradation in halide perovskite devices journal January 2022
Perovskite ionics – elucidating degradation mechanisms in perovskite solar cells via device modelling and iodine chemistry journal January 2023
Substitution of lead with tin suppresses ionic transport in halide perovskite optoelectronics journal January 2024
Electronic-ionic coupling in perovskite based solar cells: Implications for device stability journal September 2020
Iodine interstitials as a cause of nonradiative recombination in hybrid perovskites journal April 2020
Local Polar Fluctuations in Lead Halide Perovskite Crystals journal March 2017
Large polarons in lead halide perovskites journal August 2017
Chemical anti-corrosion strategy for stable inverted perovskite solar cells journal December 2020
A Eu 3+ -Eu 2+ ion redox shuttle imparts operational durability to Pb-I perovskite solar cells journal January 2019
Radical polymeric p-doping and grain modulation for stable, efficient perovskite solar modules journal January 2023
Strong-bonding hole-transport layers reduce ultraviolet degradation of perovskite solar cells journal June 2024

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