Effect of dimensionality on the optical absorption properties of CsPbI 3 perovskite nanocrystals

Liu, Albert; Bonato, Luiz G.; Sessa, Francesco; Almeida, Diogo B.; Isele, Erik; Nagamine, Gabriel; Zagonel, Luiz F.; Nogueira, Ana F.; Padilha, Lazaro A.; Cundiff, Steven T.

doi:10.1063/1.5124399

Title: Effect of dimensionality on the optical absorption properties of CsPbI ₃ perovskite nanocrystals

Abstract

The bandgaps of CsPbI₃ perovskite nanocrystals are measured by absorption spectroscopy at cryogenic temperatures. Anomalous bandgap shifts are observed in CsPbI₃ nanocubes and nanoplatelets, which are modeled accurately by bandgap renormalization due to lattice vibrational modes. We find that decreasing dimensionality of the CsPbI₃ lattice in nanoplatelets greatly reduces electron-phonon coupling, and dominant out-of-plane quantum confinement results in a homogeneously broadened absorption line shape down to cryogenic temperatures. An absorption tail forms at low-temperatures in CsPbI₃ nanocubes, which we attribute to shallow defect states positioned near the valence band edge.

Authors:

Liu, Albert ^[1]; Bonato, Luiz G. ^[2]; Sessa, Francesco ^[1]; Almeida, Diogo B. ^[3]; Isele, Erik ^[1]; Nagamine, Gabriel ^[2];

^[2];

^[2]; Padilha, Lazaro A. ^[2];

^[1]

Univ. of Michigan, Ann Arbor, MI (United States)
Universidade Estadual de Campinas (Brazil)
Universidade Estadual de Campinas (Brazil) ; Univ. of Michigan, Ann Arbor, MI (United States)

Publication Date:: Thu Nov 21 00:00:00 EST 2019

Research Org.:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1802771

Alternate Identifier(s):: OSTI ID: 1607570

Grant/Contract Number:: SC0015782

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Chemical Physics

Additional Journal Information:: Journal Volume: 151; Journal Issue: 19; Journal ID: ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemistry; Physics; Cryogenics; Absorption spectroscopy; Excitons; Phonons; Photoluminescence; Renormalization and regularization; Crystal structure; Nanocrystals; Perovskites

Citation Formats


                    Liu, Albert, Bonato, Luiz G., Sessa, Francesco, Almeida, Diogo B., Isele, Erik, Nagamine, Gabriel, Zagonel, Luiz F., Nogueira, Ana F., Padilha, Lazaro A., and Cundiff, Steven T. Effect of dimensionality on the optical absorption properties of CsPbI 3 perovskite nanocrystals.  United States: N. p., 2019. 
Web.  doi:10.1063/1.5124399.

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                    Liu, Albert, Bonato, Luiz G., Sessa, Francesco, Almeida, Diogo B., Isele, Erik, Nagamine, Gabriel, Zagonel, Luiz F., Nogueira, Ana F., Padilha, Lazaro A., & Cundiff, Steven T. Effect of dimensionality on the optical absorption properties of CsPbI 3 perovskite nanocrystals.  United States.  https://doi.org/10.1063/1.5124399

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                    Liu, Albert, Bonato, Luiz G., Sessa, Francesco, Almeida, Diogo B., Isele, Erik, Nagamine, Gabriel, Zagonel, Luiz F., Nogueira, Ana F., Padilha, Lazaro A., and Cundiff, Steven T. Thu .  
"Effect of dimensionality on the optical absorption properties of CsPbI 3 perovskite nanocrystals".  United States.  https://doi.org/10.1063/1.5124399.  https://www.osti.gov/servlets/purl/1802771.

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@article{osti_1802771,

  title        = {Effect of dimensionality on the optical absorption properties of CsPbI 3 perovskite nanocrystals},

  author       = {Liu, Albert and Bonato, Luiz G. and Sessa, Francesco and Almeida, Diogo B. and Isele, Erik and Nagamine, Gabriel and Zagonel, Luiz F. and Nogueira, Ana F. and Padilha, Lazaro A. and Cundiff, Steven T.},

  abstractNote = {The bandgaps of CsPbI3 perovskite nanocrystals are measured by absorption spectroscopy at cryogenic temperatures. Anomalous bandgap shifts are observed in CsPbI3 nanocubes and nanoplatelets, which are modeled accurately by bandgap renormalization due to lattice vibrational modes. We find that decreasing dimensionality of the CsPbI3 lattice in nanoplatelets greatly reduces electron-phonon coupling, and dominant out-of-plane quantum confinement results in a homogeneously broadened absorption line shape down to cryogenic temperatures. An absorption tail forms at low-temperatures in CsPbI3 nanocubes, which we attribute to shallow defect states positioned near the valence band edge.},

  doi          = {10.1063/1.5124399},

  journal      = {Journal of Chemical Physics},

  number       = 19,

  volume       = 151,

  place        = {United States},

  year         = {Thu Nov 21 00:00:00 EST 2019},

  month        = {Thu Nov 21 00:00:00 EST 2019}

}

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Title: Effect of dimensionality on the optical absorption properties of CsPbI 3 perovskite nanocrystals

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A mirage study of CdSe colloidal quantum dot films, Urbach tail, and surface states
journal, October 2012

High Defect Tolerance in Lead Halide Perovskite CsPbBr ₃
journal, January 2017

Suppression of the anomalous blue shift in the band gap temperature dependence of ${AgCuGaS}_{2}$ alloys
journal, May 2001

Vibrational Properties of the Organic–Inorganic Halide Perovskite CH ₃ NH ₃ PbI ₃ from Theory and Experiment: Factor Group Analysis, First-Principles Calculations, and Low-Temperature Infrared Spectra
journal, November 2015

Highly Luminescent Colloidal Nanoplates of Perovskite Cesium Lead Halide and Their Oriented Assemblies
journal, December 2015

Cubic or Orthorhombic? Revealing the Crystal Structure of Metastable Black-Phase CsPbI ₃ by Theory and Experiment
journal, June 2018

Coherent Nanotwins and Dynamic Disorder in Cesium Lead Halide Perovskite Nanocrystals
journal, April 2017

Dismantling the “Red Wall” of Colloidal Perovskites: Highly Luminescent Formamidinium and Formamidinium–Cesium Lead Iodide Nanocrystals
journal, March 2017

Giant Bandgap Renormalization and Exciton-Phonon Scattering in Perovskite Nanocrystals
journal, June 2017

Colloidal quantum dot solids for solution-processed solar cells
journal, February 2016

Urbach Rule in Solid State Physics
journal, December 2014

Dependence of the lattice parameters and the energy gap of zinc-blende-type semiconductors on isotopic masses
journal, August 1996

Colloidal Halide Perovskite Nanoplatelets: An Exciting New Class of Semiconductor Nanomaterials
journal, May 2017

Simultaneous Existence of Confined and Delocalized Vibrational Modes in Colloidal Quantum Dots
text, January 2019

Flexible quantum dot light-emitting diodes for next-generation displays
journal, April 2018

Simultaneous Existence of Confined and Delocalized Vibrational Modes in Colloidal Quantum Dots
journal, September 2019

Giant Bandgap Renormalization and Exciton-Phonon Scattering in Perovskite Nanocrystals
journal, June 2017

Single Cesium Lead Halide Perovskite Nanocrystals at Low Temperature: Fast Single-Photon Emission, Reduced Blinking, and Exciton Fine Structure
journal, January 2016

Nanocrystals of Cesium Lead Halide Perovskites (CsPbX ₃ , X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut
journal, February 2015

Non-Markovian Exciton-Phonon Interactions in Core-Shell Colloidal Quantum Dots at Femtosecond Timescales
journal, August 2019