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Title: Light-activated photocurrent degradation and self-healing in perovskite solar cells

Abstract

Solution-processed organometallic perovskite solar cells have emerged as one of the most promising thin-film photovoltaic technology. However, a key challenge is their lack of stability over prolonged solar irradiation. Few studies have investigated the effect of light soaking on hybrid perovskites and have attributed the degradation in the optoelectronic properties to photochemical or field-assisted ion migration. Here we show that the slow photocurrent degradation in thin-film photovoltaic devices is due to the formation of light-activated meta-stable deep-level trap states. However, the devices can self-heal completely by resting them in the dark for <1 min or the degradation can be completely prevented by operating the devices at 0° C. We investigate several physical mechanisms to explain the microscopic origin for the formation of these trap states, among which the creation of small polaronic states involving localized cooperative lattice strain and molecular orientations emerges as a credible microscopic mechanism requiring further detailed studies.

Authors:
 [1];  [2];  [3];  [4];  [1];  [5];  [6];  [4]; ORCiD logo [7]; ORCiD logo [8];  [3];  [2];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Physics and Application Division
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Chemical Division
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials
  5. Rutgers Univ., Piscataway, NJ (United States). Dept. of Materials Science and Engineering
  6. Purdue Univ., West Lafayette, IN (United States). School of Electrical and Computer Engineering
  7. Univ. of Rennes (France). Inst. of Chemical Sciences
  8. French National Center for Scientific Research (CNRS), Rennes (France). Optical Functions for Information Technology
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1336133
Alternate Identifier(s):
OSTI ID: 1357139
Report Number(s):
BNL-112600-2016-JA; LA-UR-17-22531
Journal ID: ISSN 2041-1723; R&D Project: 16063; 16058; KC0403020
Grant/Contract Number:  
SC00112704; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY; Center for Functional Nanomaterials

Citation Formats

Nie, Wanyi, Blancon, Jean-Christophe, Neukirch, Amanda J., Appavoo, Kannatassen, Tsai, Hsinhan, Chhowalla, Manish, Alam, Muhammad A., Sfeir, Matthew Y., Katan, Claudine, Even, Jacky, Tretiak, Sergei, Crochet, Jared J., Gupta, Gautam, and Mohite, Aditya D.. Light-activated photocurrent degradation and self-healing in perovskite solar cells. United States: N. p., 2016. Web. https://doi.org/10.1038/ncomms11574.
Nie, Wanyi, Blancon, Jean-Christophe, Neukirch, Amanda J., Appavoo, Kannatassen, Tsai, Hsinhan, Chhowalla, Manish, Alam, Muhammad A., Sfeir, Matthew Y., Katan, Claudine, Even, Jacky, Tretiak, Sergei, Crochet, Jared J., Gupta, Gautam, & Mohite, Aditya D.. Light-activated photocurrent degradation and self-healing in perovskite solar cells. United States. https://doi.org/10.1038/ncomms11574
Nie, Wanyi, Blancon, Jean-Christophe, Neukirch, Amanda J., Appavoo, Kannatassen, Tsai, Hsinhan, Chhowalla, Manish, Alam, Muhammad A., Sfeir, Matthew Y., Katan, Claudine, Even, Jacky, Tretiak, Sergei, Crochet, Jared J., Gupta, Gautam, and Mohite, Aditya D.. Mon . "Light-activated photocurrent degradation and self-healing in perovskite solar cells". United States. https://doi.org/10.1038/ncomms11574. https://www.osti.gov/servlets/purl/1336133.
@article{osti_1336133,
title = {Light-activated photocurrent degradation and self-healing in perovskite solar cells},
author = {Nie, Wanyi and Blancon, Jean-Christophe and Neukirch, Amanda J. and Appavoo, Kannatassen and Tsai, Hsinhan and Chhowalla, Manish and Alam, Muhammad A. and Sfeir, Matthew Y. and Katan, Claudine and Even, Jacky and Tretiak, Sergei and Crochet, Jared J. and Gupta, Gautam and Mohite, Aditya D.},
abstractNote = {Solution-processed organometallic perovskite solar cells have emerged as one of the most promising thin-film photovoltaic technology. However, a key challenge is their lack of stability over prolonged solar irradiation. Few studies have investigated the effect of light soaking on hybrid perovskites and have attributed the degradation in the optoelectronic properties to photochemical or field-assisted ion migration. Here we show that the slow photocurrent degradation in thin-film photovoltaic devices is due to the formation of light-activated meta-stable deep-level trap states. However, the devices can self-heal completely by resting them in the dark for <1 min or the degradation can be completely prevented by operating the devices at 0° C. We investigate several physical mechanisms to explain the microscopic origin for the formation of these trap states, among which the creation of small polaronic states involving localized cooperative lattice strain and molecular orientations emerges as a credible microscopic mechanism requiring further detailed studies.},
doi = {10.1038/ncomms11574},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {5}
}

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    It's a trap! On the nature of localised states and charge trapping in lead halide perovskites
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    Directly imaging the structure–property correlation of perovskites in crystalline microwires
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    In situ monitoring of the charge carrier dynamics of CH 3 NH 3 PbI 3 perovskite crystallization process
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    In situ investigation of light soaking in organolead halide perovskite films
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    Understanding size dependence of phase stability and band gap in CsPbI 3 perovskite nanocrystals
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    Time resolved surface photovoltage measurements using a big data capture approach to KPFM
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    Highly Efficient Inverted Perovskite Solar Cells with CdSe QDs/LiF Electron Transporting Layer
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    Influence of Radiation on the Properties and the Stability of Hybrid Perovskites
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    Critical Role of Interface and Crystallinity on the Performance and Photostability of Perovskite Solar Cell on Nickel Oxide
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    Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites
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    Self-Healing Inside APbBr 3 Halide Perovskite Crystals
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    Steric Impediment of Ion Migration Contributes to Improved Operational Stability of Perovskite Solar Cells
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    Methodologies toward Efficient and Stable Cesium Lead Halide Perovskite-Based Solar Cells
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    Long-Lasting Nanophosphors Applied to UV-Resistant and Energy Storage Perovskite Solar Cells
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    Extending the Continuous Operating Lifetime of Perovskite Solar Cells with a Molybdenum Disulfide Hole Extraction Interlayer
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    Spontaneous Interface Ion Exchange: Passivating Surface Defects of Perovskite Solar Cells with Enhanced Photovoltage
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    Surface Passivation of Perovskite Films via Iodide Salt Coatings for Enhanced Stability of Organic Lead Halide Perovskite Solar Cells
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    Identification of high-temperature exciton states and their phase-dependent trapping behaviour in lead halide perovskites
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    Polaron self-localization in white-light emitting hybrid perovskites
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    Thermal and illumination effects on a PbI 2 nanoplate and its transformation to CH 3 NH 3 PbI 3 perovskite
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    Photodecomposition and thermal decomposition in methylammonium halide lead perovskites and inferred design principles to increase photovoltaic device stability
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    A review of stability-enhanced luminescent materials: fabrication and optoelectronic applications
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    Recovery of photodegraded rhodamine 6g in ester-containing polymer matrices
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    The investigation of the unseen interrelationship of grain size, ionic defects, device physics and performance of perovskite solar cells
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    The Impact of Atmosphere on the Local Luminescence Properties of Metal Halide Perovskite Grains.
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    Advanced Materials for Next‐Generation Spacecraft
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    Strategies to Improve Luminescence Efficiency of Metal‐Halide Perovskites and Light‐Emitting Diodes
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    Organohalide Lead Perovskites: More Stable than Glass under Gamma-Ray Radiation
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