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Chiral Perovskite Nanoplatelets with Tunable Circularly Polarized Luminescence in the Strong Confinement Regime

Journal Article · · Advanced Optical Materials
Chiral perovskite nanocrystals have emerged as an interesting chiral excitonic platform that combines both structural flexibility and superior optoelectronic properties. Despite several recent demonstrations of optical activity in various chiral perovskite nanocrystals, efficient circularly polarized luminescence (CPL) with tunable energies remains a challenge. The chirality imprinting mechanism as a function of perovskite nanocrystal dimensionality remains elusive. Here, in this study, atomically thin inorganic perovskite nanoplatelets (NPLs) are synthesized with precise control of layer thickness and are functionalized by chiral surface ligands, serving as a unique platform to probe the chirality transfer mechanism at the organic/perovskite interface. It is found that chirality is successfully imprinted into mono-, bi-, and tri-layer inorganic perovskite NPLs, exhibiting tunable circular dichroism (CD) and CPL responses. However, chirality transfer decreases in thicker NPLs, resulting in decreased CD and CPL dissymmetry factors for thicker NPLs. Aided by large-scale first-principles calculations, it is proposed that chirality transfer is mainly mediated through a surface distortion rather than a hybridization of electronic states, giving rise to symmetry breaking in the perovskite lattice and spin-split conduction bands. The findings described here provide an in-depth understanding of chirality transfer and design principles for distorted-surface perovskites for chiral photonic applications.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
Hong Kong Research Grants Council (RGC); National Natural Science Foundation of China (NSFC); National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2422891
Alternate ID(s):
OSTI ID: 1995935
Journal Information:
Advanced Optical Materials, Journal Name: Advanced Optical Materials Journal Issue: 12 Vol. 11; ISSN 2195-1071
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (43)

The Structural Origin of Chiroptical Properties in Perovskite Nanocrystals with Chiral Organic Ligands journal March 2022
Endowing Perovskite Nanocrystals with Circularly Polarized Luminescence journal January 2018
Imprinting Chirality onto the Electronic States of Colloidal Perovskite Nanoplatelets journal April 2018
Chiral Perovskite Nanoplatelets Exhibiting Circularly Polarized Luminescence through Ligand Optimization journal July 2022
Advances in Quantum-Confined Perovskite Nanocrystals for Optoelectronics journal April 2017
Optical Coupling Between Chiral Biomolecules and Semiconductor Nanoparticles: Size-Dependent Circular Dichroism Absorption journal October 2011
Optical Coupling Between Chiral Biomolecules and Semiconductor Nanoparticles: Size-Dependent Circular Dichroism Absorption journal October 2011
Effects of Capping Agents on the Oxygen Reduction Reaction Activity and Shape Stability of Pt Nanocubes journal October 2019
Ab initio molecular simulations with numeric atom-centered orbitals journal November 2009
GPU acceleration of all-electron electronic structure theory using localized numeric atom-centered basis functions journal September 2020
ELSI — An open infrastructure for electronic structure solvers journal November 2020
GPU-acceleration of the ELPA2 distributed eigensolver for dense symmetric and hermitian eigenproblems journal May 2021
Influence of Annealing and Composition on the Crystal Structure of Mixed-Halide, Ruddlesden–Popper Perovskites journal March 2022
Surface Ligand Engineering for Near-Unity Quantum Yield Inorganic Halide Perovskite QDs and High-Performance QLEDs journal August 2018
Resolving Rotational Stacking Disorder and Electronic Level Alignment in a 2D Oligothiophene-Based Lead Iodide Perovskite journal September 2019
2D Perovskite Nanosheets with Intrinsic Chirality journal March 2021
Induced Chirality in Halide Perovskite Clusters through Surface Chemistry journal January 2022
Two-Photon Absorption-Based Upconverted Circularly Polarized Luminescence Generated in Chiral Perovskite Nanocrystals journal May 2019
Distinct Excitonic Circular Dichroism between Wurtzite and Zincblende CdSe Nanoplatelets journal October 2018
Boosting Tunable Blue Luminescence of Halide Perovskite Nanoplatelets through Postsynthetic Surface Trap Repair journal July 2018
Ligand Exchange Strategy to Achieve Chiral Perovskite Nanocrystals with a High Photoluminescence Quantum Yield and Regulation of the Chiroptical Property journal December 2021
Strategies to Achieve High Circularly Polarized Luminescence from Colloidal Organic–Inorganic Hybrid Perovskite Nanocrystals journal July 2020
Chiral Nanostructures: New Twists journal August 2021
Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals journal January 2016
Crystal Growth of the Perovskite Semiconductor CsPbBr 3 : A New Material for High-Energy Radiation Detection journal June 2013
Highly Distorted Chiral Two-Dimensional Tin Iodide Perovskites for Spin Polarized Charge Transport journal June 2020
Origin of the Size-Dependent Stokes Shift in CsPbBr 3 Perovskite Nanocrystals journal August 2017
Targeted Ligand-Exchange Chemistry on Cesium Lead Halide Perovskite Quantum Dots for High-Efficiency Photovoltaics journal July 2018
Direct-Bandgap 2D Silver–Bismuth Iodide Double Perovskite: The Structure-Directing Influence of an Oligothiophene Spacer Cation journal April 2019
Perspective of Chiral Colloidal Semiconductor Nanocrystals: Opportunity and Challenge journal August 2019
Size Dependence of Chiroptical Activity in Colloidal Quantum Dots journal October 2011
Organic-to-inorganic structural chirality transfer in a 2D hybrid perovskite and impact on Rashba-Dresselhaus spin-orbit coupling journal September 2020
Structural descriptor for enhanced spin-splitting in 2D hybrid perovskites journal August 2021
Control of light, spin and charge with chiral metal halide semiconductors journal June 2022
Tunable internal quantum well alignment in rationally designed oligomer-based perovskite films deposited by resonant infrared matrix-assisted pulsed laser evaporation journal January 2019
Lanthanide-doping enables kinetically controlled growth of deep-blue two-monolayer halide perovskite nanoplatelets journal January 2021
Chiral highly luminescent CdS quantum dots journal January 2007
Synthesis and characterization of magnetite/PLGA/chitosan nanoparticles journal September 2015
Accurate Molecular Van Der Waals Interactions from Ground-State Electron Density and Free-Atom Reference Data journal February 2009
Tunable Semiconductors: Control over Carrier States and Excitations in Layered Hybrid Organic-Inorganic Perovskites journal October 2018
Generalized Gradient Approximation Made Simple journal October 1996
One-hundred-three compound band-structure benchmark of post-self-consistent spin-orbit coupling treatments in density functional theory journal August 2017
Chiral-induced spin selectivity enables a room-temperature spin light-emitting diode journal March 2021

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