Influence of the Laser Scanning Rate on the Structure of Rotating Lattice Single Crystal Lines

Savytskii, Dmytro; Musterman, Evan; Dierolf, Volkmar; Jain, Himanshu

doi:10.1021/acs.cgd.9b00814

Title: Influence of the Laser Scanning Rate on the Structure of Rotating Lattice Single Crystal Lines

Abstract

Localized controlled heating of glass with a continuous wave laser has introduced the possibility of engineering the lattice of recently discovered rotating lattice single (RLS) crystals and thus obtaining novel metamaterials. On this account, we report the role of the laser scanning speed on the lattice structure of a model system: Sb₂S₃ straight RLS crystal lines created in a 16SbI₃-84Sb₂S₃ glass. The electron backscatter diffraction analysis shows that above a critical laser scanning speed the lattice rotates along the direction of scanning, the rate of lattice rotation is relatively insensitive to scanning speed, and the growth front is symmetric. In contrast, for laser scanning speeds below this critical value, the rate and direction of lattice rotation are strongly affected by the speed. Further, the growth front becomes asymmetric, which promotes the formation of new grains misoriented by ≤10°. These observations are reported on in terms of the relative dominance of the temperature gradient from laser scanning vis-á-vis the intrinsic preferred crystallographic direction of crystal growth. In addition to providing guidelines for fabricating the RLS crystal of the desired rate of the lattice rotation, new insight is gained for the mechanism of plumose formation in spherulitic crystals.

Authors:

^[1];

^[1]

Lehigh Univ., Bethlehem, PA (United States)

Publication Date:: Mon Oct 14 00:00:00 EDT 2019

Research Org.:: Lehigh Univ., Bethlehem, PA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1597097

Grant/Contract Number:: SC0005010

Resource Type:: Accepted Manuscript

Journal Name:: Crystal Growth and Design

Additional Journal Information:: Journal Volume: 19; Journal Issue: 11; Journal ID: ISSN 1528-7483

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Crystals; Crystallization; Crystal structure; Lattices; Lasers

Citation Formats


                    Savytskii, Dmytro, Musterman, Evan, Dierolf, Volkmar, and Jain, Himanshu. Influence of the Laser Scanning Rate on the Structure of Rotating Lattice Single Crystal Lines.  United States: N. p., 2019. 
Web.  doi:10.1021/acs.cgd.9b00814.

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                    Savytskii, Dmytro, Musterman, Evan, Dierolf, Volkmar, & Jain, Himanshu. Influence of the Laser Scanning Rate on the Structure of Rotating Lattice Single Crystal Lines.  United States.  https://doi.org/10.1021/acs.cgd.9b00814

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                    Savytskii, Dmytro, Musterman, Evan, Dierolf, Volkmar, and Jain, Himanshu. Mon .  
"Influence of the Laser Scanning Rate on the Structure of Rotating Lattice Single Crystal Lines".  United States.  https://doi.org/10.1021/acs.cgd.9b00814.  https://www.osti.gov/servlets/purl/1597097.

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@article{osti_1597097,

  title        = {Influence of the Laser Scanning Rate on the Structure of Rotating Lattice Single Crystal Lines},

  author       = {Savytskii, Dmytro and Musterman, Evan and Dierolf, Volkmar and Jain, Himanshu},

  abstractNote = {Localized controlled heating of glass with a continuous wave laser has introduced the possibility of engineering the lattice of recently discovered rotating lattice single (RLS) crystals and thus obtaining novel metamaterials. On this account, we report the role of the laser scanning speed on the lattice structure of a model system: Sb2S3 straight RLS crystal lines created in a 16SbI3-84Sb2S3 glass. The electron backscatter diffraction analysis shows that above a critical laser scanning speed the lattice rotates along the direction of scanning, the rate of lattice rotation is relatively insensitive to scanning speed, and the growth front is symmetric. In contrast, for laser scanning speeds below this critical value, the rate and direction of lattice rotation are strongly affected by the speed. Further, the growth front becomes asymmetric, which promotes the formation of new grains misoriented by ≤10°. These observations are reported on in terms of the relative dominance of the temperature gradient from laser scanning vis-á-vis the intrinsic preferred crystallographic direction of crystal growth. In addition to providing guidelines for fabricating the RLS crystal of the desired rate of the lattice rotation, new insight is gained for the mechanism of plumose formation in spherulitic crystals.},

  doi          = {10.1021/acs.cgd.9b00814},

  journal      = {Crystal Growth and Design},

  number       = 11,

  volume       = 19,

  place        = {United States},

  year         = {Mon Oct 14 00:00:00 EDT 2019},

  month        = {Mon Oct 14 00:00:00 EDT 2019}

}

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https://doi.org/10.1021/acs.cgd.9b00814

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Cited by: 3 works

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Figure 1: Laser-induced Sb₂S₃ RLS crystal architecture on the surface of 16SbI₃−84Sb₂S₃ glass, which was formed at different scanning speeds from the initial horizontal line. First, a dot was created by slowly ramping the power density from 0 to 90 μW/μm² in 5 s, followed by steady exposure for 60more »

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