Template-Free Synthesis of Periodic Three-Dimensional PbSe Nanostructures via Photoelectrodeposition

Azhar I. Carim, Kathryn R. Hamann, Nicolas A. Batara, Jonathan R. Thompson, Harry A. Atwater, Nathan S Lewis

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Highly periodic, geometrically directed, anisotropic Se-Pb films have been synthesized at room temperature from an isotropic aqueous solution without the use of physical templates by photoelectrodeposition using a series of discrete input illumination polarizations and wavelengths from an unstructured, uncorrelated, incoherent light source. Dark growth did not generate deposits with substantial long-range order, but growth using unpolarized illumination resulted in an ordered, nanoscale, mesh-type morphology. Linearly polarized illumination generated Se-Pb deposits that displayed an ordered, highly anisotropic lamellar pattern wherein the long axes of the lamellae were aligned parallel to the light polarization vector. The pitch of the lamellar features was proportional to the input light wavelength, as confirmed by Fourier analysis. Full-wave electromagnetic and Monte Carlo growth simulations that incorporated only the fundamental light-matter interactions during growth successfully reproduced the experimentally observed morphologies and quantitatively matched the pattern periodicities. Electrochemical postprocessing of the as-deposited Se-Pb structures resulted in the generation of stoichiometric, crystalline PbSe while preserving the nanopatterned morphology, thus broadening the genus of materials that can be prepared with controlled three-dimensional morphologies through maskless photoelectrodeposition.

Original languageEnglish
Pages (from-to)6536-6539
Number of pages4
JournalJournal of the American Chemical Society
Volume140
Issue number21
DOIs
Publication statusPublished - May 30 2018

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Nanostructures
Lighting
Light
Growth
Deposits
Electromagnetic Radiation
Wavelength
Fourier analysis
Periodicity
Fourier Analysis
Light polarization
Electromagnetic waves
Light sources
Polarization
Crystalline materials
Temperature
lead selenide

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Template-Free Synthesis of Periodic Three-Dimensional PbSe Nanostructures via Photoelectrodeposition. / Carim, Azhar I.; Hamann, Kathryn R.; Batara, Nicolas A.; Thompson, Jonathan R.; Atwater, Harry A.; Lewis, Nathan S.

In: Journal of the American Chemical Society, Vol. 140, No. 21, 30.05.2018, p. 6536-6539.

Research output: Contribution to journalArticle

Carim, Azhar I. ; Hamann, Kathryn R. ; Batara, Nicolas A. ; Thompson, Jonathan R. ; Atwater, Harry A. ; Lewis, Nathan S. / Template-Free Synthesis of Periodic Three-Dimensional PbSe Nanostructures via Photoelectrodeposition. In: Journal of the American Chemical Society. 2018 ; Vol. 140, No. 21. pp. 6536-6539.
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