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

Title: Low-frequency lattice phonons in halide perovskites explain high defect tolerance toward electron-hole recombination

Journal Article · · Science Advances
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [5]
  1. University of Science and Technology of China, Hefei (China). ICQD/Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics; Univ. of Southern California, Los Angeles, CA (United States). Departments of Chemistry, and Physics and Astronomy
  2. University of Science and Technology of China, Hefei (China). ICQD/Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics
  3. Univ. of Southern California, Los Angeles, CA (United States). Departments of Chemistry, and Physics and Astronomy
  4. University of Science and Technology of China, Hefei (China). ICQD/Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics; Univ. of Pittsburgh, PA (United States). Department of Physics and Astronomy; University of Science and Technology of China, Hefei (China).Synergetic Innovation Center of Quantum Information and Quantum Physics
  5. niv. of Pittsburgh, PA (United States). Department of Mechanical Engineering and Materials Science

Low-cost solution-based synthesis of metal halide perovskites (MHPs) invariably introduces defects in the system, which could form Shockley-Read-Hall (SRH) electron-hole recombination centers detrimental to solar conversion efficiency. Here, we investigate the nonradiative recombination processes due to native point defects in methylammonium lead halide (MAPbI3) perovskites using ab initio nonadiabatic molecular dynamics within surface-hopping framework. Regardless of whether the defects introduce a shallow or deep band state, we find that charge recombination in MAPbI3is not enhanced, contrary to predictions from SRH theory. We demonstrate that this strong tolerance against defects, and hence the breakdown of SRH, arises because the photogenerated carriers are only coupled with low-frequency phonons and electron and hole states overlap weakly. Both factors appreciably decrease the nonadiabatic coupling. We argue that the soft nature of the inorganic lattice with small bulk modulus is key for defect tolerance, and hence, the findings are general to other MHPs.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Southern California, Los Angeles, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357; SC0014429
OSTI ID:
1626015
Journal Information:
Science Advances, Vol. 6, Issue 7; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (71)

The Role of Intrinsic Defects in Methylammonium Lead Iodide Perovskite journal March 2014
Charge Carriers in Hybrid Organic–Inorganic Lead Halide Perovskites Might Be Protected as Large Polarons journal November 2015
Generalized Gradient Approximation Made Simple journal October 1996
Segregation of Native Defects to the Grain Boundaries in Methylammonium Lead Iodide Perovskite journal November 2017
Temperature dependent energy levels of methylammonium lead iodide perovskite journal June 2015
Recombination activity of interstitial iron and other transition metal point defects in p- and n-type crystalline silicon journal November 2004
Local polar fluctuations in lead halide perovskite crystals text January 2016
Temperature-Dependent Charge-Carrier Dynamics in CH 3 NH 3 PbI 3 Perovskite Thin Films journal September 2015
Delocalized Impurity Phonon Induced Electron–Hole Recombination in Doped Semiconductors journal February 2018
Lead Halide Perovskite Nanocrystals in the Research Spotlight: Stability and Defect Tolerance journal August 2017
Proton transfer in solution: Molecular dynamics with quantum transitions journal September 1994
Statistics of the Recombinations of Holes and Electrons journal September 1952
Ferroelectric large polarons journal April 2018
Temperature Dependence of the Energy Levels of Methylammonium Lead Iodide Perovskite from First Principles text January 2016
Photovoltaic behaviour of lead methylammonium triiodide perovskite solar cells down to 80 K journal January 2015
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Band-edge problem in the theoretical determination of defect energy levels: The O vacancy in ZnO as a benchmark case journal September 2011
Decoherence-induced surface hopping journal December 2012
Temperature Dependence of the Energy Levels of Methylammonium Lead Iodide Perovskite from First-Principles journal November 2016
Phonons and defects in semiconductors and nanostructures: Phonon trapping, phonon scattering, and heat flow at heterojunctions journal January 2014
Quantum Zeno Effect Rationalizes the Phonon Bottleneck in Semiconductor Quantum Dots journal May 2013
Nature of the cubic to tetragonal phase transition in methylammonium lead iodide perovskite journal October 2016
A Simple Phase Correction Makes a Big Difference in Nonadiabatic Molecular Dynamics journal September 2018
High Defect Tolerance in Lead Halide Perovskite CsPbBr 3 journal January 2017
Strong Covalency-Induced Recombination Centers in Perovskite Solar Cell Material CH 3 NH 3 PbI 3 journal October 2014
Behavior of Methylammonium Dipoles in MAPbX 3 (X = Br and I) journal August 2017
Phonon-Assisted Ultrafast Charge Transfer at van der Waals Heterostructure Interface journal September 2017
Ab initiomolecular dynamics for liquid metals journal January 1993
Solar cell efficiency tables (Version 45): Solar cell efficiency tables journal December 2014
Acoustic-optical phonon up-conversion and hot-phonon bottleneck in lead-halide perovskites journal January 2017
Effects of Electron–Phonon Coupling on Electronic Properties of Methylammonium Lead Iodide Perovskites journal December 2018
Relativistic GW calculations on CH3NH3PbI3 and CH3NH3SnI3 Perovskites for Solar Cell Applications journal March 2014
Predicting the Open-Circuit Voltage of CH 3 NH 3 PbI 3 Perovskite Solar Cells Using Electroluminescence and Photovoltaic Quantum Efficiency Spectra: the Role of Radiative and Non-Radiative Recombination journal September 2014
Unique Properties of Halide Perovskites as Possible Origins of the Superior Solar Cell Performance journal May 2014
A simple correlation for the operating temperature of photovoltaic modules of arbitrary mounting journal November 2008
Electron-hole diffusion lengths > 175 μm in solution-grown CH 3 NH 3 PbI 3 single crystals journal January 2015
Electronic properties of the metastable defect in boron-doped Czochralski silicon: Unambiguous determination by advanced lifetime spectroscopy journal February 2003
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
Ultrafast THz Probe of Photoinduced Polarons in Lead-Halide Perovskites journal April 2019
Comparison of Recombination Dynamics in CH 3 NH 3 PbBr 3 and CH 3 NH 3 PbI 3 Perovskite Films: Influence of Exciton Binding Energy journal November 2015
Extended carrier lifetimes and diffusion in hybrid perovskites revealed by Hall effect and photoconductivity measurements journal August 2016
Photocarrier Recombination Dynamics in Perovskite CH 3 NH 3 PbI 3 for Solar Cell Applications journal August 2014
The Raman Spectrum of the CH 3 NH 3 PbI 3 Hybrid Perovskite: Interplay of Theory and Experiment journal December 2013
Ultrafast Dynamics of Photongenerated Holes at a CH 3 OH/TiO 2 Rutile Interface journal October 2016
Structural Stabilities and Electronic Properties of High-Angle Grain Boundaries in Perovskite Cesium Lead Halides journal January 2017
General behavior of longitudinal optical phonons in cubic diatomic crystals journal May 2004
Brief report: The bulk modulus-volume relationship for oxides journal June 1970
Unravelling the Effects of Grain Boundary and Chemical Doping on Electron–Hole Recombination in CH 3 NH 3 PbI 3 Perovskite by Time-Domain Atomistic Simulation journal March 2016
Defects in perovskite-halides and their effects in solar cells journal October 2016
Large polarons in lead halide perovskites journal August 2017
Unusual defect physics in CH 3 NH 3 PbI 3 perovskite solar cell absorber journal February 2014
Iodine chemistry determines the defect tolerance of lead-halide perovskites journal January 2018
Impact of microstructure on local carrier lifetime in perovskite solar cells journal April 2015
The efficiency limit of CH 3 NH 3 PbI 3 perovskite solar cells journal June 2015
Methodologies toward Highly Efficient Perovskite Solar Cells journal February 2018
Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3 journal October 2013
Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber journal October 2013
Carrier trapping and recombination: the role of defect physics in enhancing the open circuit voltage of metal halide perovskite solar cells journal January 2016
The Impact of the Crystallization Processes on the Structural and Optical Properties of Hybrid Perovskite Films for Photovoltaics journal October 2014
Hole Trapping by Iodine Interstitial Defects Decreases Free Carrier Losses in Perovskite Solar Cells: A Time-Domain Ab Initio Study journal May 2017
Structural and electronic properties of hybrid perovskites for high-efficiency thin-film photovoltaics from first-principles journal October 2013
Prediction of bulk modulus at high temperatures from longitudinal phonon frequencies: Application to diamond, c BN , and 3 C SiC journal January 2006
Importance of Spin–Orbit Coupling in Hybrid Organic/Inorganic Perovskites for Photovoltaic Applications journal August 2013
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells journal March 1961
High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites journal December 2013
Organic–inorganic hybrid lead halide perovskites for optoelectronic and electronic applications journal January 2016
Ultrafast THz probe of photo-induced polarons in lead-halide perovskites text January 2018
Validity of simplified Shockley-Read-Hall statistics for modeling carrier lifetimes in crystalline silicon journal February 2003
Radiative efficiency of lead iodide based perovskite solar cells journal August 2014
Efficient carrier transport in halide perovskites: theoretical perspectives journal January 2014
Direct observation of intercenter charge transfer in dominant nonradiative recombination channels in silicon journal September 1991

Similar Records

Soft Lattice and Defect Covalency Rationalize Tolerance of β‐CsPbI 3 Perovskite Solar Cells to Native Defects
Journal Article · Wed Feb 19 00:00:00 EST 2020 · Angewandte Chemie · OSTI ID:1626015

Soft Lattice and Defect Covalency Rationalize Tolerance of β‐CsPbI 3 Perovskite Solar Cells to Native Defects
Journal Article · Wed Feb 19 00:00:00 EST 2020 · Angewandte Chemie (International Edition) · OSTI ID:1626015

Unravelling the Effects of Grain Boundary and Chemical Doping on Electron–Hole Recombination in CH 3 NH 3 PbI 3 Perovskite by Time-Domain Atomistic Simulation
Journal Article · Thu Mar 10 00:00:00 EST 2016 · Journal of the American Chemical Society · OSTI ID:1626015