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Title: Manipulating efficient light emission in two-dimensional perovskite crystals by pressure-induced anisotropic deformation

Abstract

The hybrid nature and soft lattice of organolead halide perovskites render their structural changes and optical properties susceptible to external driving forces such as temperature and pressure, remarkably different from conventional semiconductors. Here, we investigate the pressure-induced optical response of a typical two-dimensional perovskite crystal, phenylethylamine lead iodide. At a moderate pressure within 3.5 GPa, its photoluminescence red-shifts continuously, exhibiting an ultrabroad energy tunability range up to 320 meV in the visible spectrum, with quantum yield remaining nearly constant. First-principles calculations suggest that an out-of-plane quasi-uniaxial compression occurs under a hydrostatic pressure, while the energy is absorbed by the reversible and elastic tilting of the benzene rings within the long-chain ligands. This anisotropic structural deformation effectively modulates the quantum confinement effect by 250 meV via barrier height lowering. The broad tunability within a relatively low pressure range will expand optoelectronic applications to a new paradigm with pressure as a tuning knob.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4];  [5]; ORCiD logo [4];  [4]; ORCiD logo [5];  [2]; ORCiD logo [6]; ORCiD logo [7]
  1. Tianjin Univ. of Technology (China); Nanyang Technological Univ. (Singapore). Division of Physics and Applied Physics, School of Physical and Mathematical Sciences
  2. Tianjin Univ. of Technology (China)
  3. Inst. of High Performance Computing (Singapore)
  4. Nanyang Technological Univ. (Singapore). Division of Physics and Applied Physics, School of Physical and Mathematical Sciences
  5. Nanyang Technological Univ. (Singapore). School of Materials Science and Engineering
  6. Northwestern Polytechnical Univ. (NPU) (China). Shaanxi Inst. of Flexible Electronics (SIFE)
  7. Nanyang Technological Univ. (Singapore). Division of Physics and Applied Physics, School of Physical and Mathematical Sciences MajuLab, International Joint Research Unit (Singapore); Nanyang Technological Univ. (Singapore). Nanoelectronics Center of Excellence, School of Electrical and Electronic Engineering
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1545866
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 5; Journal Issue: 7; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE

Citation Formats

Liu, Sheng, Sun, Shishuai, Gan, Chee Kwan, del Águila, Andrés Granados, Fang, Yanan, Xing, Jun, Do, T. Thu Ha, White, Timothy J., Li, Hongguo, Huang, Wei, and Xiong, Qihua. Manipulating efficient light emission in two-dimensional perovskite crystals by pressure-induced anisotropic deformation. United States: N. p., 2019. Web. doi:10.1126/sciadv.aav9445.
Liu, Sheng, Sun, Shishuai, Gan, Chee Kwan, del Águila, Andrés Granados, Fang, Yanan, Xing, Jun, Do, T. Thu Ha, White, Timothy J., Li, Hongguo, Huang, Wei, & Xiong, Qihua. Manipulating efficient light emission in two-dimensional perovskite crystals by pressure-induced anisotropic deformation. United States. https://doi.org/10.1126/sciadv.aav9445
Liu, Sheng, Sun, Shishuai, Gan, Chee Kwan, del Águila, Andrés Granados, Fang, Yanan, Xing, Jun, Do, T. Thu Ha, White, Timothy J., Li, Hongguo, Huang, Wei, and Xiong, Qihua. Mon . "Manipulating efficient light emission in two-dimensional perovskite crystals by pressure-induced anisotropic deformation". United States. https://doi.org/10.1126/sciadv.aav9445. https://www.osti.gov/servlets/purl/1545866.
@article{osti_1545866,
title = {Manipulating efficient light emission in two-dimensional perovskite crystals by pressure-induced anisotropic deformation},
author = {Liu, Sheng and Sun, Shishuai and Gan, Chee Kwan and del Águila, Andrés Granados and Fang, Yanan and Xing, Jun and Do, T. Thu Ha and White, Timothy J. and Li, Hongguo and Huang, Wei and Xiong, Qihua},
abstractNote = {The hybrid nature and soft lattice of organolead halide perovskites render their structural changes and optical properties susceptible to external driving forces such as temperature and pressure, remarkably different from conventional semiconductors. Here, we investigate the pressure-induced optical response of a typical two-dimensional perovskite crystal, phenylethylamine lead iodide. At a moderate pressure within 3.5 GPa, its photoluminescence red-shifts continuously, exhibiting an ultrabroad energy tunability range up to 320 meV in the visible spectrum, with quantum yield remaining nearly constant. First-principles calculations suggest that an out-of-plane quasi-uniaxial compression occurs under a hydrostatic pressure, while the energy is absorbed by the reversible and elastic tilting of the benzene rings within the long-chain ligands. This anisotropic structural deformation effectively modulates the quantum confinement effect by 250 meV via barrier height lowering. The broad tunability within a relatively low pressure range will expand optoelectronic applications to a new paradigm with pressure as a tuning knob.},
doi = {10.1126/sciadv.aav9445},
url = {https://www.osti.gov/biblio/1545866}, journal = {Science Advances},
issn = {2375-2548},
number = 7,
volume = 5,
place = {United States},
year = {2019},
month = {7}
}

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Cited by: 15 works
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    Works referencing / citing this record:

    Photoinduced Trap Passivation for Enhanced Photoluminescence in 2D Organic–Inorganic Hybrid Perovskites
    journal, February 2020


    Pressure responses of halide perovskites with various compositions, dimensionalities, and morphologies
    journal, January 2020


    Enhanced emission from CH 3 NH 3 PbBr 3 perovskite films by graphene quantum dot modification
    journal, January 2020