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

Title: Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite

Journal Article · · Nature Communications
 [1];  [2];  [3];  [4];  [4]; ORCiD logo [5];  [6];  [7]; ORCiD logo [2]; ORCiD logo [4]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Dong-A Univ., Busan (Korea, Republic of). Dept. of Chemistry
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Andrés Bello National Univ., Santiago (Chile). Dept. of Physical Sciences; Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Foundry
  4. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry
  5. Osram Opto Semiconductors GmbH, Regensburg (Germany)
  6. Univ. of California, Berkeley, CA (United States). Dept. of Physics. Kavli Energy NanoSciences Inst.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Foundry
  7. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry. Dept. of Materials Science and Engineering. Kavli Energy NanoSciences Inst.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division

Hybrid organic-inorganic perovskites have attractive optoelectronic properties including exceptional solar cell performance. The improved properties of perovskites have been attributed to polaronic effects involving stabilization of localized charge character by structural deformations and polarizations. Here we examine the Pb-I structural dynamics leading to polaron formation in methylammonium lead iodide perovskite by transient absorption, time-domain Raman spectroscopy, and density functional theory. Methylammonium lead iodide perovskite exhibits excited-state coherent nuclear wave packets oscillating at ~20, 43, and 75 cm-1 which involve skeletal bending, in-plane bending, and c-axis stretching of the I-Pb-I bonds, respectively. The amplitudes of these wave packet motions report on the magnitude of the excited-state structural changes, in particular, the formation of a bent and elongated octahedral PbI64- geometry. We have predicted the excited-state geometry and structural changes between the neutral and polaron states using a normal-mode projection method, which supports and rationalizes the experimental results. This study reveals the polaron formation via nuclear dynamics that may be important for efficient charge separation.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); LANL Laboratory Directed Research and Development (LDRD) Program; LBNL Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-06NA25396; AC02-05CH11231
OSTI ID:
1459840
Alternate ID(s):
OSTI ID: 1506380
Report Number(s):
LA-UR-17-31256; TRN: US1901813
Journal Information:
Nature Communications, Vol. 9; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 106 works
Citation information provided by
Web of Science

References (68)

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
Ionic transport in hybrid lead iodide perovskite solar cells journal June 2015
Coulomb Screening and Coherent Phonon in Methylammonium Lead Iodide Perovskites journal August 2016
Density functional theory + U modeling of polarons in organohalide lead perovskites journal December 2016
Projector augmented-wave method journal December 1994
Long-Lived Photoinduced Polarons in Organohalide Perovskites journal June 2017
Femtosecond Stimulated Raman Exposes the Role of Vibrational Coherence in Condensed-Phase Photoreactivity journal March 2016
Advances and Promises of Layered Halide Hybrid Perovskite Semiconductors journal October 2016
Charge-Carrier Mobilities in Metal Halide Perovskites: Fundamental Mechanisms and Limits journal June 2017
Tailoring nucleation and grain growth by changing the precursor phase ratio for efficient organic lead halide perovskite optoelectronic devices journal January 2017
Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells journal June 2017
High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles journal June 2016
Impact of microstructure on the electron–hole interaction in lead halide perovskites journal January 2017
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
High-performance photovoltaic perovskite layers fabricated through intramolecular exchange journal May 2015
Solar cell efficiency tables (version 50)
  • Green, Martin A.; Hishikawa, Yoshihiro; Warta, Wilhelm
  • Progress in Photovoltaics: Research and Applications, Vol. 25, Issue 7 https://doi.org/10.1002/pip.2909
journal June 2017
A coherent picture of vision journal November 2015
Femtosecond Stimulated Raman Spectroscopy journal March 2016
Four-Wave Mixing in Perovskite Photovoltaic Materials Reveals Long Dephasing Times and Weaker Many-Body Interactions than GaAs journal June 2017
Evaluation of Recombination Velocities of Grain Boundaries Measured by High Resolution Lock-in Thermography journal January 2013
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells journal July 2014
Structural Study on Cubic–Tetragonal Transition of CH 3 NH 3 PbI 3 journal July 2002
Wave packet theory of dynamic absorption spectra in femtosecond pump–probe experiments journal April 1990
Microscopic Analysis of Inherent Void Passivation in Perovskite Solar Cells journal June 2017
Screening in crystalline liquids protects energetic carriers in hybrid perovskites journal September 2016
Optical study on intrinsic exciton states in high-quality CH 3 NH 3 PbBr 3 single crystals journal August 2017
Interplay of Orientational Order and Electronic Structure in Methylammonium Lead Iodide: Implications for Solar Cell Operation journal November 2014
Low Frequency Resonant Impulsive Raman Modes Reveal Inversion Mechanism for Azobenzene journal November 2013
Investigation of CH 3 NH 3 PbI 3 Degradation Rates and Mechanisms in Controlled Humidity Environments Using in Situ Techniques journal January 2015
High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells journal July 2016
Polaron Stabilization by Cooperative Lattice Distortion and Cation Rotations in Hybrid Perovskite Materials journal May 2016
Resonance Raman Investigation of the Interaction between Aromatic Dithiocarbamate Ligands and CdSe Quantum Dots journal March 2017
Resonance Raman Spectroscopy and Electron–Phonon Coupling in Zinc Selenide Quantum Dots journal December 2016
Effect of Cation Rotation on Charge Dynamics in Hybrid Lead Halide Perovskites journal July 2016
Grain boundaries in CdTe thin film solar cells: a review journal July 2016
Large polarons in lead halide perovskites journal August 2017
Charge-carrier dynamics in vapour-deposited films of the organolead halide perovskite CH 3 NH 3 PbI 3−x Cl x journal January 2014
Improved Understanding of the Electronic and Energetic Landscapes of Perovskite Solar Cells: High Local Charge Carrier Mobility, Reduced Recombination, and Extremely Shallow Traps journal September 2014
Special points for Brillouin-zone integrations journal June 1976
Critical Role of Methylammonium Librational Motion in Methylammonium Lead Iodide (CH 3 NH 3 PbI 3 ) Perovskite Photochemistry journal June 2017
Methodologies for high efficiency perovskite solar cells journal June 2016
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Quantum Calculation of Molecular Energies and Energy Gradients in Solution by a Conductor Solvent Model journal March 1998
Coherent and Homogeneous Intramolecular Charge-Transfer Dynamics of 1- tert -Butyl-6-cyano-1,2,3,4-tetrahydroquinoline (NTC6), a Rigid Analogue of DMABN journal July 2014
Structural, optical, and electrical properties of phase-controlled cesium lead iodide nanowires journal February 2017
Persistent Energetic Electrons in Methylammonium Lead Iodide Perovskite Thin Films journal November 2016
Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber journal October 2013
Mapping GFP structure evolution during proton transfer with femtosecond Raman spectroscopy journal November 2009
Synthesis and crystal chemistry of the hybrid perovskite (CH3NH3)PbI3 for solid-state sensitised solar cell applications journal January 2013
Facet-dependent photovoltaic efficiency variations in single grains of hybrid halide perovskite journal July 2016
Vibrational Spectrum of an Excited State and Huang-Rhys Factors by Coherent Wave Packets in Time-Resolved Fluorescence Spectroscopy journal February 2017
Vibrational Properties of the Organic–Inorganic Halide Perovskite CH 3 NH 3 PbI 3 from Theory and Experiment: Factor Group Analysis, First-Principles Calculations, and Low-Temperature Infrared Spectra journal November 2015
Terahertz Emission from Hybrid Perovskites Driven by Ultrafast Charge Separation and Strong Electron-Phonon Coupling journal January 2018
Deep level trapped defect analysis in CH 3 NH 3 PbI 3 perovskite solar cells by deep level transient spectroscopy journal January 2017
A practical method for the use of curvilinear coordinates in calculations of normal-mode-projected displacements and Duschinsky rotation matrices for large molecules journal November 2001
Virtual Issue on Metal-Halide Perovskite Nanocrystals—A Bright Future for Optoelectronics journal October 2017
Recent advances in perovskite solar cells: efficiency, stability and lead-free perovskite journal January 2017
Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells journal May 2016
Beneficial Effects of PbI 2 Incorporated in Organo-Lead Halide Perovskite Solar Cells journal December 2015
Evidence for conical intersection dynamics mediating ultrafast singlet exciton fission journal March 2015
Real-Time Observation of Organic Cation Reorientation in Methylammonium Lead Iodide Perovskites journal August 2015
Femtosecond stimulated Raman spectroscopy journal December 2010
Reducing Dzyaloshinskii-Moriya interaction and field-free spin-orbit torque switching in synthetic antiferromagnets journal May 2021
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020
Evidence for conical intersection dynamics mediating ultrafast singlet exciton fission text January 2015
Femtosecond Stimulated Raman Spectroscopy journal April 2016
Four-wave mixing in perovskite photovoltaic materials reveals long dephasing times and weaker many-body interactions than GaAs text January 2016

Cited By (15)

Illumination‐Induced Halide Segregation in Gradient Bandgap Mixed‐Halide Perovskite Nanoplatelets journal October 2018
Polarons in Metal Halide Perovskites journal April 2020
Modeling the Ultrafast Response of Two‐Magnon Raman Excitations in Antiferromagnets on the Femtosecond Timescale journal October 2019
Evaluation of Polaron Transport in Solids from First‐principles journal January 2020
Two-dimensional electronic spectroscopy reveals liquid-like lineshape dynamics in CsPbI3 perovskite nanocrystals journal October 2019
Phonon coherences reveal the polaronic character of excitons in two-dimensional lead halide perovskites journal January 2019
Refractive index change dominates the transient absorption response of metal halide perovskite thin films in the near infrared journal January 2019
Thermochromism of bromotellurates( iv ): experimental insights journal January 2019
White light emission in low-dimensional perovskites journal January 2019
Ultrafast THz Probe of Photoinduced Polarons in Lead-Halide Perovskites journal April 2019
Phonon coherences reveal the polaronic character of excitons in two-dimensional lead halide perovskites conference January 2019
Ultrafast THz probe of photo-induced polarons in lead-halide perovskites text January 2018
Characterization of the Ammonium Bending Vibrations in Two-Dimensional Hybrid Lead-Halide Perovskites from Raman Spectroscopy and First-Principles Calculations journal January 2021
Static and Dynamic Disorder in Triple-Cation Hybrid Perovskites journal July 2018
Cation Dynamics in Hybrid Halide Perovskites preprint January 2020

Figures / Tables (6)