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Title: Large exchange-driven intrinsic circular dichroism of a chiral 2D hybrid perovskite

Journal Article · · Nature Communications

Abstract In two-dimensional chiral metal-halide perovskites, chiral organic spacers endow structural and optical chirality to the metal-halide sublattice, enabling exquisite control of light, charge, and electron spin. The chiroptical properties of metal-halide perovskites have been measured by transmissive circular dichroism spectroscopy, which necessitates thin-film samples. Here, by developing a reflection-based approach, we characterize the intrinsic, circular polarization-dependent complex refractive index for a prototypical two-dimensional chiral lead-bromide perovskite and report large circular dichroism for single crystals. Comparison with ab initio theory reveals the large circular dichroism arises from the inorganic sublattice rather than the chiral ligand and is an excitonic phenomenon driven by electron-hole exchange interactions, which breaks the degeneracy of transitions between Rashba-Dresselhaus-split bands, resulting in a Cotton effect. Our study suggests that previous data for spin-coated films largely underestimate the optical chirality and provides quantitative insights into the intrinsic optical properties of chiral perovskites for chiroptical and spintronic applications.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0012704; AC02-05CH11231; AC05-00OR22725
OSTI ID:
2327035
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 15 Journal Issue: 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (58)

Predictive Determination of Band Gaps of Inorganic Halide Perovskites journal October 2017
Revealing the Intrinsic Chiroptical Activity in Chiral Metal-Halide Semiconductors journal November 2022
Generalized Gradient Approximation Made Simple journal October 1996
Exciton Ground State Fine Structure and Excited States Landscape in Layered Halide Perovskites from Combined BSE Simulations and Symmetry Analysis journal February 2023
Coulomb-hole summations and energies for G W calculations with limited number of empty orbitals: A modified static remainder approach journal April 2013
The 2D Halide Perovskite Rulebook: How the Spacer Influences Everything from the Structure to Optoelectronic Device Efficiency journal January 2021
BerkeleyGW: A massively parallel computer package for the calculation of the quasiparticle and optical properties of materials and nanostructures journal June 2012
Spin-dependent charge transport through 2D chiral hybrid lead-iodide perovskites journal December 2019
Organic–Inorganic Perovskites: Structural Versatility for Functional Materials Design journal March 2016
Electron correlation in semiconductors and insulators: Band gaps and quasiparticle energies journal October 1986
Optically Induced Long-Lived Chirality Memory in the Color-Tunable Chiral Lead-Free Semiconductor (R)/(S)-CHEA4Bi2BrxI10–x (x = 0–10) journal July 2022
Screening of Excitons by Organic Cations in Quasi-Two-Dimensional Organic–Inorganic Lead-Halide Perovskites journal June 2022
Strong Rashba‐Dresselhaus Effect in Nonchiral 2D Ruddlesden‐Popper Perovskites journal October 2021
Optimized norm-conserving Vanderbilt pseudopotentials journal August 2013
Brightening of dark excitons in 2D perovskites journal November 2021
Nanometre optical coatings based on strong interference effects in highly absorbing media journal October 2012
Ruddlesden–Popper Hybrid Lead Iodide Perovskite 2D Homologous Semiconductors journal April 2016
Crystallization Kinetics in a Glass-Forming Hybrid Metal Halide Perovskite journal August 2022
Reversible Crystal–Glass Transition in a Metal Halide Perovskite journal December 2020
Relativistic quasiparticle self-consistent electronic structure of hybrid halide perovskite photovoltaic absorbers journal April 2014
High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells journal July 2016
Elucidating the origin of chiroptical activity in chiral 2D perovskites through nano-confined growth journal June 2022
Spin control in reduced-dimensional chiral perovskites journal August 2018
Towards predictive band gaps for halide perovskites: Lessons from one-shot and eigenvalue self-consistent G W journal October 2019
Molecular engineering of organic–inorganic hybrid perovskites quantum wells journal November 2019
Bulk Photovoltaic Effect in a Pair of Chiral–Polar Layered Perovskite-Type Lead Iodides Altered by Chirality of Organic Cations journal September 2019
G W quasiparticle band gap of the hybrid organic-inorganic perovskite CH 3 NH 3 PbI 3 : Effect of spin-orbit interaction, semicore electrons, and self-consistency journal December 2014
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Chiral 2D Perovskites with a High Degree of Circularly Polarized Photoluminescence journal March 2019
Materials for chiral light control journal March 2023
Hyperbolic Dispersion Arising from Anisotropic Excitons in Two-Dimensional Perovskites journal September 2018
Chiral 2D Organic Inorganic Hybrid Perovskite with Circular Dichroism Tunable Over Wide Wavelength Range journal February 2020
Strong Induced Circular Dichroism in a Hybrid Lead‐Halide Semiconductor Using Chiral Amino Acids for Crystallite Surface Functionalization journal June 2022
Minimal Molecular Building Blocks for Screening in Quasi-Two-Dimensional Organic–Inorganic Lead Halide Perovskites journal April 2023
Spin-Dependent Photovoltaic and Photogalvanic Responses of Optoelectronic Devices Based on Chiral Two-Dimensional Hybrid Organic–Inorganic Perovskites journal November 2020
A new class of chiral semiconductors: chiral-organic-molecule-incorporating organic–inorganic hybrid perovskites journal January 2017
Origin of the Cotton Effect of Helical Polypeptides journal November 1962
Limitation of the Magnetic-Circular-Dichroism Spin Sum Rule for Transition Metals and Importance of the Magnetic Dipole Term journal October 1994
Structural descriptor for enhanced spin-splitting in 2D hybrid perovskites journal August 2021
Chiral-phonon-activated spin Seebeck effect journal February 2023
Scaling law for excitons in 2D perovskite quantum wells journal June 2018
Quantum and Dielectric Confinement Effects in Lower-Dimensional Hybrid Perovskite Semiconductors journal January 2019
Efficient first-principles method for calculating the circular dichroism of nanostructures journal February 2009
Excitons in ultrathin organic-inorganic perovskite crystals journal July 2015
Chiral-perovskite optoelectronics journal March 2020
Understanding Optical Activity in Single-Walled Carbon Nanotubes from First-Principles Studies journal May 2010
Temperature-Dependent Optical Activity Due to Quantized Molecular Rotation and Optical Rotation by Oriented Molecules journal February 1970
Semiempirical GGA-type density functional constructed with a long-range dispersion correction journal January 2006
Direct detection of circular polarized light in helical 1D perovskite-based photodiode journal November 2020
Organic-to-inorganic structural chirality transfer in a 2D hybrid perovskite and impact on Rashba-Dresselhaus spin-orbit coupling journal September 2020
Ultrafast Excitonic Response in Two-Dimensional Hybrid Perovskites Driven by Intense Midinfrared Pulses journal October 2022
Semiconductor physics of organic–inorganic 2D halide perovskites journal December 2020
Extremely large binding energy of biexcitons in an organic–inorganic quantum-well material (C4H9NH3)2PbBr4 journal October 2003
Chiral-induced spin selectivity enables a room-temperature spin light-emitting diode journal March 2021
Implementation and Validation of Fully Relativistic GW Calculations: Spin–Orbit Coupling in Molecules, Nanocrystals, and Solids journal July 2016
Optical activity of oriented molecules journal January 1971
Theory of Chirality Induced Spin Selectivity: Progress and Challenges journal February 2022
Electron-hole excitations and optical spectra from first principles journal August 2000

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