Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles

Dan R. Wargulski; Tal Binyamin; Katrina Coogan; Benedikt Haas; Christoph Koch; Lioz Etgar; Daniel Abou-Ras

doi:10.1109/pvsc48320.2023.10359820

Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles

Dan R. Wargulski, Tal Binyamin, Katrina Coogan, Benedikt Haas, Christoph Koch, Lioz Etgar, Daniel Abou-Ras

Institute of Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Monochromated, aberation-corrected scanning transmission electron microscopes enable the investigation of chemical distribution and optical properties such as the bandgap energy. We conducted valence and core electron energy-loss spectroscopy on nanoparticles made of the inorganic double-halide perovskites CsPb(I_xBr_1-x)₃ (x=0-1) to investigate the distribution of halogen anions as well as Cs and Pb cations inside the nanoparticles and correlated the results with bandgap energy mappings. Changes of the chemical distribution with continuous electron beam irradiation were observed.

Original language	English
Title of host publication	2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665460590
DOIs	https://doi.org/10.1109/pvsc48320.2023.10359820
State	Published - 2023
Event	50th IEEE Photovoltaic Specialists Conference, PVSC 2023 - San Juan, United States Duration: 11 Jun 2023 → 16 Jun 2023

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Conference

Conference	50th IEEE Photovoltaic Specialists Conference, PVSC 2023
Country/Territory	United States
City	San Juan
Period	11/06/23 → 16/06/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

core-loss EELS
halide perovskites
monochromated STEM
nanoparticles
photovoltaic
valence-loss EELS

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/pvsc48320.2023.10359820

Cite this

Wargulski, D. R., Binyamin, T., Coogan, K., Haas, B., Koch, C., Etgar, L., & Abou-Ras, D. (2023). Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles. In 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023 (Conference Record of the IEEE Photovoltaic Specialists Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/pvsc48320.2023.10359820

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abstract = "Monochromated, aberation-corrected scanning transmission electron microscopes enable the investigation of chemical distribution and optical properties such as the bandgap energy. We conducted valence and core electron energy-loss spectroscopy on nanoparticles made of the inorganic double-halide perovskites CsPb(IxBr1-x)3 (x=0-1) to investigate the distribution of halogen anions as well as Cs and Pb cations inside the nanoparticles and correlated the results with bandgap energy mappings. Changes of the chemical distribution with continuous electron beam irradiation were observed.",

keywords = "core-loss EELS, halide perovskites, monochromated STEM, nanoparticles, photovoltaic, valence-loss EELS",

author = "Wargulski, {Dan R.} and Tal Binyamin and Katrina Coogan and Benedikt Haas and Christoph Koch and Lioz Etgar and Daniel Abou-Ras",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 50th IEEE Photovoltaic Specialists Conference, PVSC 2023 ; Conference date: 11-06-2023 Through 16-06-2023",

year = "2023",

doi = "10.1109/pvsc48320.2023.10359820",

language = "אנגלית",

series = "Conference Record of the IEEE Photovoltaic Specialists Conference",

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Wargulski, DR, Binyamin, T, Coogan, K, Haas, B, Koch, C, Etgar, L & Abou-Ras, D 2023, Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles. in 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023. Conference Record of the IEEE Photovoltaic Specialists Conference, Institute of Electrical and Electronics Engineers Inc., 50th IEEE Photovoltaic Specialists Conference, PVSC 2023, San Juan, United States, 11/06/23. https://doi.org/10.1109/pvsc48320.2023.10359820

Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles. / Wargulski, Dan R.; Binyamin, Tal; Coogan, Katrina et al.
2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - Monochromated, aberation-corrected scanning transmission electron microscopes enable the investigation of chemical distribution and optical properties such as the bandgap energy. We conducted valence and core electron energy-loss spectroscopy on nanoparticles made of the inorganic double-halide perovskites CsPb(IxBr1-x)3 (x=0-1) to investigate the distribution of halogen anions as well as Cs and Pb cations inside the nanoparticles and correlated the results with bandgap energy mappings. Changes of the chemical distribution with continuous electron beam irradiation were observed.

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KW - halide perovskites

KW - monochromated STEM

KW - nanoparticles

KW - photovoltaic

KW - valence-loss EELS

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Wargulski DR, Binyamin T, Coogan K, Haas B, Koch C, Etgar L et al. Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles. In 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023. Institute of Electrical and Electronics Engineers Inc. 2023. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/pvsc48320.2023.10359820

Phase Distributions and Local Bandgap Energies in Mixed-Halide Perovskite Nanoparticles

Abstract

Publication series

Conference

Bibliographical note

Keywords

UN SDGs

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