Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order

Gujral, Ankit; Gomez, Jaritza; Ruan, Shigang; Toney, Michael F.; Bock, Harold; Yu, Lian; Ediger, Mark D.

doi:10.11578/1413970

Title: Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order

Abstract

Anisotropic molecular packing, particularly in highly ordered liquid crystalline arrangements, has the potential for optimizing performance in organic electronic and optoelectronic applications. Here we show that physical vapor deposition can be used to prepare highly organized glassy solids of discotic liquid crystalline systems. Using grazing incidence X-ray scattering, atomic force microscopy, and UV–vis spectroscopy, we compare three systems: a rectangular columnar liquid crystal, a hexagonal columnar liquid crystal, and a nonmesogen. The packing motifs accessible by vapor deposition are highly organized for the liquid crystalline systems with columns propagating either in plane or out-of-plane depending upon the substrate temperature during deposition. The structures formed at a given substrate temperature can be understood as resulting from partial equilibration toward the structure of the equilibrium liquid crystal surface during the deposition process.

Authors:

; Gomez, Jaritza; Ruan, Shigang;

; Bock, Harold; Yu, Lian; Ediger, Mark D.

Department of Chemistry, Unversity of Wisconsin-Madison, Madison, Wisconsin, 53706, United States
SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Centre de Recherche Paul Pascal, Universite de Bordeaux & CNRS, 33600 Pessac, France
School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States
Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States

Publication Date:: 2017-10-04

Other Number(s):: 1793-77681

DOE Contract Number:: SC0002161

Research Org.:: Univ. of Wisconsin, Madison, WI (United States); Albany Research Center (ARC), Albany, OR (United States); [Select Primary First]

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division

Collaborations:: Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States; Centre de Recherche Paul Pascal, Université de Bordeaux & CNRS, 33600 Pessac, France; School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States

OSTI Identifier:: 1413970

DOI:: https://doi.org/10.11578/1413970

Citation Formats


                    Gujral, Ankit, Gomez, Jaritza, Ruan, Shigang, Toney, Michael F., Bock, Harold, Yu, Lian, and Ediger, Mark D. Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order.  United States: N. p., 2017. 
        Web.  doi:10.11578/1413970.

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                    Gujral, Ankit, Gomez, Jaritza, Ruan, Shigang, Toney, Michael F., Bock, Harold, Yu, Lian, & Ediger, Mark D. Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order.  United States.  doi:https://doi.org/10.11578/1413970

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                    Gujral, Ankit, Gomez, Jaritza, Ruan, Shigang, Toney, Michael F., Bock, Harold, Yu, Lian, and Ediger, Mark D. 2017.  
"Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order".  United States.  doi:https://doi.org/10.11578/1413970.  https://www.osti.gov/servlets/purl/1413970. Pub date:Wed Oct 04 00:00:00 EDT 2017

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@article{osti_1413970,

  title        = {Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order},

  author       = {Gujral, Ankit and Gomez, Jaritza and Ruan, Shigang and Toney, Michael F. and Bock, Harold and Yu, Lian and Ediger, Mark D.},

  abstractNote = {Anisotropic molecular packing, particularly in highly ordered liquid crystalline arrangements, has the potential for optimizing performance in organic electronic and optoelectronic applications. Here we show that physical vapor deposition can be used to prepare highly organized glassy solids of discotic liquid crystalline systems. Using grazing incidence X-ray scattering, atomic force microscopy, and UV–vis spectroscopy, we compare three systems: a rectangular columnar liquid crystal, a hexagonal columnar liquid crystal, and a nonmesogen. The packing motifs accessible by vapor deposition are highly organized for the liquid crystalline systems with columns propagating either in plane or out-of-plane depending upon the substrate temperature during deposition. The structures formed at a given substrate temperature can be understood as resulting from partial equilibration toward the structure of the equilibrium liquid crystal surface during the deposition process.},

  doi          = {10.11578/1413970},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {10}

}

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