MRS Meetings and Events


EN05.10.04 2023 MRS Fall Meeting

Water-Assisted Morphology and Crystal Engineering of Hybrid Organic-Inorganic Halide Perovskite: Implications for Optoelectronic Properties

When and Where

Nov 29, 2023
8:00pm - 10:00pm

Hynes, Level 1, Hall A



Andre Luiz Freitas1,Jose Souza1



Andre Luiz Freitas1,Jose Souza1

The versatile application of hybrid organic-inorganic halide perovskites relies heavily on their crystal organization, which gives rise to distinct electronic structures. By manipulating the dimensionality and incorporating quantum confinement effects within the layered building blocks composed of n layers of [MX<sub>6</sub>]<sup>4−</sup> octahedra, the optoelectronic properties of lead halide perovskites can be further modulated. In this study, we present a water-assisted approach for the formation of microwires and 2D layered morphologies, achieved through a dissociation-recrystallization process using MAPbBr<sub>3</sub> microcubes. Along with a systematic alteration of the bandgap energy, our investigation uncovers variations in trap- and exciton-assisted recombination lifetimes, attributed to changes in exciton binding energy and structural confinement. Notably, the control of water and organic molecules within the precursor ionic solution plays a pivotal role, inducing or inhibiting growth and confining charge transport in specific directions, resulting in modified optical properties and exciton dynamics. This work sheds light on the significance of water-assisted methodologies and structural manipulation in hybrid organic-inorganic halide perovskites, providing a pathway towards advanced control and optimization of their optoelectronic characteristics.<br/><br/><b>Acknowledgments</b><br/>Financial support from FAPESP (grants no. 2022/06433-5, 2020/09563-1, and 2017/02317-2) and CEM-UFABC.


optical properties | self-assembly

Symposium Organizers

Marina Leite, University of California, Davis
Lina Quan, Virginia Institute of Technology
Samuel Stranks, University of Cambridge
Ni Zhao, Chinese University of Hong Kong

Symposium Support

Enli Technology Co., LTD

APL Energy | AIP Publishing

Session Chairs

So Min Park
Lina Quan

In this Session

Interstitial Defect Relaxation DFT Study of Lead Halide Perovskites

Water-Assisted Morphology and Crystal Engineering of Hybrid Organic-Inorganic Halide Perovskite: Implications for Optoelectronic Properties

Self-Leveling Inks for Engineering Large Area Uniformity in High-Performance Flexography-Printed Perovskite Solar Cells

Towards Highly Efficient Fully Evaporated Perovskite/Si Tandem Solar Cells

The Outstanding Role of Dielectricity in Hybrid Solar Cell Absorbers

Controlling The Crystallization of Pure Bromide Quasi-2-Dimensional Perovskite Crystals for High Efficiency Pure-Blue Light-Emitting Diodes

Compositional Engineering of Single-Crystal Perovskite for Highly Efficient Photovoltaics

Atomistic Origin of Transparent Absorption Spectra of Halide Perovskites

Exploring a Novel Family of Conjugated Polymers for High Efficiency and Thermally Stable Perovskite Solar Cells

Charge Transfer Doping of Ruddlesden–Popper Metal–Halide Perovskites via Bulk Incorporation of Organic Molecular Dopants

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Publishing Alliance

MRS publishes with Springer Nature