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

Title: Transformation from crystalline precursor to perovskite in PbCl2-derived MAPbI3

Journal Article · · Nature Communications

Abstract Understanding the formation chemistry of metal halide perovskites is key to optimizing processing conditions and realizing enhanced optoelectronic properties. Here, we reveal the structure of the crystalline precursor in the formation of methylammonium lead iodide (MAPbI 3 ) from the single-step deposition of lead chloride and three equivalents of methylammonium iodide (PbCl 2  + 3MAI) (MA = CH 3 NH 3 ). The as-spun film consists of crystalline MA 2 PbI 3 Cl, which is composed of one-dimensional chains of lead halide octahedra, coexisting with disordered MACl. We show that the transformation of precursor into perovskite is not favored in the presence of MACl, and thus the gradual evaporation of MACl acts as a self-regulating mechanism to slow the conversion. We propose the stable precursor phase enables dense film coverage and the slow transformation may lead to improved crystal quality. This enhanced chemical understanding is paramount for the rational control of film deposition and the fabrication of superior optoelectronic devices.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515; DGE-1147470
OSTI ID:
1465603
Alternate ID(s):
OSTI ID: 1461197
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 9 Journal Issue: 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 64 works
Citation information provided by
Web of Science

References (41)

ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Planar Heterojunction Perovskite Solar Cells via Vapor-Assisted Solution Process journal December 2013
Nika : software for two-dimensional data reduction journal March 2012
Perovskite Solar Cells on the Way to Their Radiative Efficiency Limit - Insights Into a Success Story of High Open-Circuit Voltage and Low Recombination journal March 2017
6.5% efficient perovskite quantum-dot-sensitized solar cell journal January 2011
Hybrid Perovskite Thin-Film Photovoltaics: In Situ Diagnostics and Importance of the Precursor Solvate Phases journal November 2016
Photo-induced halide redistribution in organic–inorganic perovskite films journal May 2016
Crystallization of Methyl Ammonium Lead Halide Perovskites: Implications for Photovoltaic Applications journal September 2014
Sequential deposition as a route to high-performance perovskite-sensitized solar cells journal July 2013
Elucidating the Reaction Pathways in the Synthesis of Organolead Trihalide Perovskite for High-Performance Solar Cells journal May 2015
Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells journal June 2017
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells journal May 2009
Solution-processed hybrid perovskite photodetectors with high detectivity journal November 2014
Crystallization Kinetics of Organic–Inorganic Trihalide Perovskites and the Role of the Lead Anion in Crystal Growth journal February 2015
Defect migration in methylammonium lead iodide and its role in perovskite solar cell operation journal January 2015
GSAS-II : the genesis of a modern open-source all purpose crystallography software package journal March 2013
Perovskite energy funnels for efficient light-emitting diodes journal June 2016
Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors journal April 2015
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
Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber journal October 2013
Controllable Grain Morphology of Perovskite Absorber Film by Molecular Self-Assembly toward Efficient Solar Cell Exceeding 17% journal August 2015
A combined single crystal neutron/X-ray diffraction and solid-state nuclear magnetic resonance study of the hybrid perovskites CH 3 NH 3 PbX 3 (X = I, Br and Cl) journal January 2015
Relationships between Lead Halide Perovskite Thin-Film Fabrication, Morphology, and Performance in Solar Cells journal November 2015
Efficient planar heterojunction perovskite solar cells by vapour deposition journal September 2013
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells journal July 2014
Solvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells journal January 2015
Roadmap and roadblocks for the band gap tunability of metal halide perovskites journal January 2017
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites journal October 2012
Retarding the crystallization of PbI 2 for highly reproducible planar-structured perovskite solar cells via sequential deposition journal January 2014
Perovskite-based solar cells: impact of morphology and device architecture on device performance journal January 2015
Additive Enhanced Crystallization of Solution-Processed Perovskite for Highly Efficient Planar-Heterojunction Solar Cells journal March 2014
Chlorine in PbCl 2 -Derived Hybrid-Perovskite Solar Absorbers journal October 2015
MAPbI3-xClx Mixed Halide Perovskite for Hybrid Solar Cells: The Role of Chloride as Dopant on the Transport and Structural Properties journal November 2013
Monitoring the Formation of a CH 3 NH 3 PbI 3- x Cl x Perovskite during Thermal Annealing Using X-Ray Scattering journal May 2016
THE CRYSTAL STRUCTURE OF LEAD(II) IODIDE-DIMETHYLSULPHOXIDE(1/2), PbI 2 (dmso) 2 journal June 1980
Chloride in Lead Chloride-Derived Organo-Metal Halides for Perovskite-Absorber Solar Cells journal December 2014
Thermal Behavior of Methylammonium Lead-Trihalide Perovskite Photovoltaic Light Harvesters journal October 2014
Navigating Organo-Lead Halide Perovskite Phase Space via Nucleation Kinetics toward a Deeper Understanding of Perovskite Phase Transformations and Structure-Property Relationships journal March 2015
Controlling Nucleation and Growth of Metal Halide Perovskite Thin Films for High-Efficiency Perovskite Solar Cells journal February 2017
Thermally Induced Structural Evolution and Performance of Mesoporous Block Copolymer-Directed Alumina Perovskite Solar Cells journal April 2014
Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9% journal August 2012

Similar Records

Revealing the Dynamics of Hybrid Metal Halide Perovskite Formation via Multimodal In Situ Probes
Journal Article · Mon Dec 09 00:00:00 EST 2019 · Advanced Functional Materials · OSTI ID:1465603

Effects of Oxygen and Water on the Formation and Degradation Processes of (CH3NH3)PbI3 Thin Films
Journal Article · Tue Nov 03 00:00:00 EST 2020 · ACS Applied Energy Materials · OSTI ID:1465603

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
Journal Article · Fri Sep 08 00:00:00 EDT 2017 · Journal of Visualized Experiments · OSTI ID:1465603