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Title: Three-dimensional patterning of solid microstructures through laser reduction of colloidal graphene oxide in liquid-crystalline dispersions

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms8157· OSTI ID:1220791
 [1];  [2];  [3];  [3];  [2];  [4];  [5];  [2];  [6]
  1. Univ. of Colorado, Boulder, CO (United States). Dept. of Physics; Rice Univ., Houston, TX (United States). Dept. of Chemical and Biomolecular Engineering
  2. Rice Univ., Houston, TX (United States). Dept. of Chemical and Biomolecular Engineering
  3. Univ. of Colorado, Boulder, CO (United States). Dept. of Physics
  4. Rice Univ., Houston, TX (United States). R.E. Smalley Inst. for Nanoscale Science and Technology
  5. R.E. Smalley Inst. for Nanoscale Science and Technology
  6. Univ. of Colorado, Boulder, CO (United States). Dept. of Physics; Univ. of Colorado, Boulder, CO (United States). Liquid Crystal Materials Center; National Renewable Energy Lab. (NREL), Golden, CO (United States). Renewable and Sustainable Energy Inst.

Graphene materials and structures have become an essential part of modern electronics and photovoltaics. However, despite many production methods, applications of graphene-based structures are hindered by high costs, lack of scalability and limitations in spatial patterning. Here we fabricate three-dimensional functional solid microstructures of reduced graphene oxide in a lyotropic nematic liquid crystal of graphene oxide flakes using a pulsed near-infrared laser. This reliable, scalable approach is mask-free, does not require special chemical reduction agents, and can be implemented at ambient conditions starting from aqueous graphene oxide flakes. Orientational ordering of graphene oxide flakes in self-assembled liquid-crystalline phases enables laser patterning of complex, three-dimensional reduced graphene oxide structures and colloidal particles, such as trefoil knots, with ‘frozen’ orientational order of flakes. These structures and particles are mechanically rigid and range from hundreds of nanometres to millimetres in size, as needed for applications in colloids, electronics, photonics and display technology.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC36-08GO28308; SC0010305
OSTI ID:
1220791
Alternate ID(s):
OSTI ID: 1595145
Report Number(s):
NREL/JA-5900-64592
Journal Information:
Nature Communications, Vol. 6; Related Information: Nature Communications; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

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Cited By (14)

Nanolattices: An Emerging Class of Mechanical Metamaterials journal September 2017
Laser Fabrication of Graphene‐Based Flexible Electronics journal August 2019
Recent Developments in 2D Nanomaterials for Chemiresistive-Type Gas Sensors journal March 2018
Large-area graphene-based nanofiltration membranes by shear alignment of discotic nematic liquid crystals of graphene oxide journal March 2016
Distinguishing thermal lens effect from electronic third-order nonlinear self-phase modulation in liquid suspensions of 2D nanomaterials journal January 2017
Synthesis and porous h-BN 3D architectures for effective humidity and gas sensors journal January 2016
In situ manipulation of fluorescence resonance energy transfer between quantum dots and monolayer graphene oxide by laser irradiation journal January 2019
Redox shuttle enhances nonthermal femtosecond two-photon self-doping of rGO–TiO 2−x photocatalysts under visible light journal January 2018
Graphene-based chiral liquid crystal materials for optical applications journal January 2019
Enhanced mechanical properties of hBN–ZrO 2 composites and their biological activities on Drosophila melanogaster : synthesis and characterization journal January 2019
Tube-rolling and formation of mechanically robust micro-tubes in graphene oxide aqueous dispersions during shear flow journal January 2019
In Situ Decoration of Gold Nanoparticles on Graphene Oxide via Nanosecond Laser Ablation for Remarkable Chemical Sensing and Catalysis journal August 2019
Nanolattices - An Emerging Class of Mechanical Metamaterials journalarticle January 2017
In situ decoration of graphene sheets with gold nanoparticles synthetized by pulsed laser ablation in liquids journal July 2016

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