skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Facile fabrication of large-grain CH 3NH 3PbI 3-xBr x films for high-efficiency solar cells via CH 3NH 3Br-selective Ostwald ripening

Abstract

Organometallic halide perovskite solar cells (PSCs) have shown great promise as a low-cost, high-efficiency photovoltaic technology. Structural and electro-optical properties of the perovskite absorber layer are most critical to device operation characteristics. Here we present a facile fabrication of high-efficiency PSCs based on compact, large-grain, pinhole-free CH 3NH 3PbI 3-xBr x (MAPbI 3-xBr x) thin films with high reproducibility. A simple methylammonium bromide (MABr) treatment via spin-coating with a proper MABr concentration converts MAPbI 3 thin films with different initial film qualities (for example, grain size and pinholes) to high-quality MAPbI 3-xBr x thin films following an Ostwald ripening process, which is strongly affected by MABr concentration and is ineffective when replacing MABr with methylammonium iodide. A higher MABr concentration enhances I-Br anion exchange reaction, yielding poorer device performance. Lastly, this MABr-selective Ostwald ripening process improves cell efficiency but also enhances device stability and thus represents a simple, promising strategy for further improving PSC performance with higher reproducibility and reliability.

Authors:
 [1];  [2];  [1]; ORCiD logo [1];  [2];  [1];  [2];  [1];  [1];  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemistry and Nanoscience Center
  2. Shanghai Jiao Tong Univ. (China). School of Environmental Science and Engineering
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; NSFC
OSTI Identifier:
1287447
Report Number(s):
NREL/JA-5900-65980
Journal ID: ISSN 2041-1723
Grant/Contract Number:  
AC36-08GO28308; 51372151; 21303103
Resource Type:
Journal Article: 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:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; perovskite solar cells; PSC; Ostwald ripening

Citation Formats

Yang, Mengjin, Zhang, Taiyang, Schulz, Philip, Li, Zhen, Li, Ge, Kim, Dong Hoe, Guo, Nanjie, Berry, Joseph J., Zhu, Kai, and Zhao, Yixin. Facile fabrication of large-grain CH3NH3PbI3-xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening. United States: N. p., 2016. Web. doi:10.1038/ncomms12305.
Yang, Mengjin, Zhang, Taiyang, Schulz, Philip, Li, Zhen, Li, Ge, Kim, Dong Hoe, Guo, Nanjie, Berry, Joseph J., Zhu, Kai, & Zhao, Yixin. Facile fabrication of large-grain CH3NH3PbI3-xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening. United States. https://doi.org/10.1038/ncomms12305
Yang, Mengjin, Zhang, Taiyang, Schulz, Philip, Li, Zhen, Li, Ge, Kim, Dong Hoe, Guo, Nanjie, Berry, Joseph J., Zhu, Kai, and Zhao, Yixin. Mon . "Facile fabrication of large-grain CH3NH3PbI3-xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening". United States. https://doi.org/10.1038/ncomms12305. https://www.osti.gov/servlets/purl/1287447.
@article{osti_1287447,
title = {Facile fabrication of large-grain CH3NH3PbI3-xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening},
author = {Yang, Mengjin and Zhang, Taiyang and Schulz, Philip and Li, Zhen and Li, Ge and Kim, Dong Hoe and Guo, Nanjie and Berry, Joseph J. and Zhu, Kai and Zhao, Yixin},
abstractNote = {Organometallic halide perovskite solar cells (PSCs) have shown great promise as a low-cost, high-efficiency photovoltaic technology. Structural and electro-optical properties of the perovskite absorber layer are most critical to device operation characteristics. Here we present a facile fabrication of high-efficiency PSCs based on compact, large-grain, pinhole-free CH3NH3PbI3-xBrx (MAPbI3-xBrx) thin films with high reproducibility. A simple methylammonium bromide (MABr) treatment via spin-coating with a proper MABr concentration converts MAPbI3 thin films with different initial film qualities (for example, grain size and pinholes) to high-quality MAPbI3-xBrx thin films following an Ostwald ripening process, which is strongly affected by MABr concentration and is ineffective when replacing MABr with methylammonium iodide. A higher MABr concentration enhances I-Br anion exchange reaction, yielding poorer device performance. Lastly, this MABr-selective Ostwald ripening process improves cell efficiency but also enhances device stability and thus represents a simple, promising strategy for further improving PSC performance with higher reproducibility and reliability.},
doi = {10.1038/ncomms12305},
url = {https://www.osti.gov/biblio/1287447}, journal = {Nature Communications},
issn = {2041-1723},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 39 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Chemical Management for Colorful, Efficient, and Stable Inorganic–Organic Hybrid Nanostructured Solar Cells
journal, March 2013


6.5% efficient perovskite quantum-dot-sensitized solar cell
journal, January 2011


Controlled Humidity Study on the Formation of Higher Efficiency Formamidinium Lead Triiodide-Based Solar Cells
journal, June 2015


Transforming Hybrid Organic Inorganic Perovskites by Rapid Halide Exchange
journal, March 2015


Key tissue targets responsible for anthrax-toxin-induced lethality
journal, August 2013


Efficient Planar Perovskite Solar Cells Based on 1.8 eV Band Gap CH 3 NH 3 PbI 2 Br Nanosheets via Thermal Decomposition
journal, August 2014


Chemical Pathways Connecting Lead(II) Iodide and Perovskite via Polymeric Plumbate(II) Fiber
journal, December 2015


A hole-conductor-free, fully printable mesoscopic perovskite solar cell with high stability
journal, July 2014


Sequential deposition as a route to high-performance perovskite-sensitized solar cells
journal, July 2013


Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
journal, May 2009


Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors
journal, May 2013


Square-Centimeter Solution-Processed Planar CH 3 NH 3 PbI 3 Perovskite Solar Cells with Efficiency Exceeding 15%
journal, September 2015


Using a two-step deposition technique to prepare perovskite (CH3NH3PbI3) for thin film solar cells based on ZrO2 and TiO2 mesostructures
journal, January 2013


Ultra-thin high efficiency semitransparent perovskite solar cells
journal, April 2015


Growth of CH3NH3PbI3 cuboids with controlled size for high-efficiency perovskite solar cells
journal, August 2014


Highly Reproducible Perovskite Solar Cells with Average Efficiency of 18.3% and Best Efficiency of 19.7% Fabricated via Lewis Base Adduct of Lead(II) Iodide
journal, July 2015


Solution Chemistry Engineering toward High-Efficiency Perovskite Solar Cells
journal, November 2014


Hysteresis-less inverted CH 3 NH 3 PbI 3 planar perovskite hybrid solar cells with 18.1% power conversion efficiency
journal, January 2015


Formation Mechanism of Freestanding CH3NH3PbI3 Functional Crystals: In Situ Transformation vs Dissolution–Crystallization
journal, November 2014


Formation of high-quality perovskite thin film for planar heterojunction solar cells
journal, January 2015


Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
journal, July 2014


Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
journal, October 2012


The Importance of Moisture in Hybrid Lead Halide Perovskite Thin Film Fabrication
journal, August 2015


Organohalide lead perovskites for photovoltaic applications
journal, January 2014


A Fast Deposition-Crystallization Procedure for Highly Efficient Lead Iodide Perovskite Thin-Film Solar Cells
journal, July 2014


Solvent Annealing of Perovskite-Induced Crystal Growth for Photovoltaic-Device Efficiency Enhancement
journal, August 2014


Compositional engineering of perovskite materials for high-performance solar cells
journal, January 2015


A Closer Look into Two-Step Perovskite Conversion with X-ray Scattering
journal, March 2015


Thermal-Induced Volmer–Weber Growth Behavior for Planar Heterojunction Perovskites Solar Cells
journal, July 2015


Efficient planar heterojunction perovskite solar cells by vapour deposition
journal, September 2013


    Works referencing / citing this record:

    (C 6 H 5 NH 3 )BiI 4 : a lead-free perovskite with >330 days humidity stability for optoelectronic applications
    journal, January 2019


    Highly Efficient Guanidinium‐Based Quasi 2D Perovskite Solar Cells via a Two‐Step Post‐Treatment Process
    journal, May 2019


    Highly Efficient Guanidinium‐Based Quasi 2D Perovskite Solar Cells via a Two‐Step Post‐Treatment Process
    journal, May 2019


    (C 6 H 5 NH 3 )BiI 4 : a lead-free perovskite with >330 days humidity stability for optoelectronic applications
    journal, January 2019


    Reduced Defects of MAPbI 3 Thin Films Treated by FAI for High-Performance Planar Perovskite Solar Cells
    journal, December 2018


    Control of Crystal Growth toward Scalable Fabrication of Perovskite Solar Cells
    journal, December 2018


    Solution‐Processable Perovskite Solar Cells toward Commercialization: Progress and Challenges
    journal, April 2019


    Perovskite Solar Cells with ZnO Electron-Transporting Materials
    journal, November 2017


    From Nanostructural Evolution to Dynamic Interplay of Constituents: Perspectives for Perovskite Solar Cells
    journal, March 2018


    Ideal Bandgap Organic-Inorganic Hybrid Perovskite Solar Cells
    journal, November 2017


    Grain-Boundary “Patches” by In Situ Conversion to Enhance Perovskite Solar Cells Stability
    journal, June 2018


    Origins of High Performance and Degradation in the Mixed Perovskite Solar Cells
    journal, January 2019


    Template‐Assisted Formation of High‐Quality α‐Phase HC(NH 2 ) 2 PbI 3 Perovskite Solar Cells
    journal, August 2019


    Carrier Interfacial Engineering by Bismuth Modification for Efficient and Thermoresistant Perovskite Solar Cells
    journal, March 2018


    Efficient Passivation of Hybrid Perovskite Solar Cells Using Organic Dyes with COOH Functional Group
    journal, April 2018


    Patterned Wettability Surface for Competition‐Driving Large‐Grained Perovskite Solar Cells
    journal, May 2019


    A Review on Additives for Halide Perovskite Solar Cells
    journal, April 2020


    Crystallization Control of Ternary‐Cation Perovskite Absorber in Triple‐Mesoscopic Layer for Efficient Solar Cells
    journal, December 2019


    A Scalable Methylamine Gas Healing Strategy for High‐Efficiency Inorganic Perovskite Solar Cells
    journal, March 2019


    A Scalable Methylamine Gas Healing Strategy for High‐Efficiency Inorganic Perovskite Solar Cells
    journal, March 2019


    Impact of Interfacial Layers in Perovskite Solar Cells
    journal, September 2017


    Effect of Sodium Alginate on the Morphology and Properties of High Energy Insensitive Explosive TKX‐50
    journal, February 2019


    A Cytop Insulating Tunneling Layer for Efficient Perovskite Solar Cells
    journal, September 2017


    Performance Enhancement of Perovskite Solar Cells Induced by Lead Acetate as an Additive
    journal, April 2018


    Supersaturation controlled growth of MAFAPbI3 perovskite film for high efficiency solar cells
    journal, June 2018


    Scalable fabrication of perovskite solar cells
    journal, March 2018


    Gas-solid reaction based over one-micrometer thick stable perovskite films for efficient solar cells and modules
    journal, September 2018


    Improved charge carrier lifetime in planar perovskite solar cells by bromine doping
    journal, December 2016


    Solvent engineering for forming stonehenge-like PbI 2 nano-structures towards efficient perovskite solar cells
    journal, January 2017


    Additive engineering for highly efficient organic–inorganic halide perovskite solar cells: recent advances and perspectives
    journal, January 2017


    Crystallographic orientation propagation in metal halide perovskite thin films
    journal, January 2017


    Tailored Au@TiO 2 nanostructures for the plasmonic effect in planar perovskite solar cells
    journal, January 2017


    Enhancing perovskite solar cell performance and stability by doping barium in methylammonium lead halide
    journal, January 2017


    Li dopant induces moisture sensitive phase degradation of an all-inorganic CsPbI 2 Br perovskite
    journal, January 2018


    Perovskite precursor solution chemistry: from fundamentals to photovoltaic applications
    journal, January 2019


    Facile synthesis of monodispersed yolk-shelled molybdenum disulfide microspheres with enhanced photocatalytic properties
    journal, January 2018


    Tin–lead halide perovskites with improved thermal and air stability for efficient all-perovskite tandem solar cells
    journal, January 2018


    Large-grained formamidinium-based films via a 2D–3D conversion mechanism for high-performance perovskite solar cells without anti-solvent
    journal, January 2019


    I 2 vapor-induced degradation of formamidinium lead iodide based perovskite solar cells under heat–light soaking conditions
    journal, January 2019


    Beneficial impact of materials with reduced dimensionality on the stability of perovskite-based photovoltaics
    journal, August 2019


    Enhanced mobility CsPbI 3 quantum dot arrays for record-efficiency, high-voltage photovoltaic cells
    journal, October 2017