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Title: Roll-to-roll light directed electrophoretic deposition system and method

A roll-to-roll light directed electrophoretic deposition system and method advances a roll of a flexible electrode web substrate along a roll-to-roll process path, where a material source is positioned to provide on the flexible electrode web substrate a thin film colloidal dispersion of electrically charged colloidal material dispersed in a fluid. A counter electrode is also positioned to come in contact with the thin film colloidal dispersion opposite the flexible electrode web substrate, where one of the counter electrode and the flexible electrode web substrate is a photoconductive electrode. A voltage source is connected to produce an electric potential between the counter electrode and the flexible electrode web substrate to induce electrophoretic deposition on the flexible electrode web substrate when the photoconductive electrode is rendered conductive, and a patterned light source is arranged to illuminate the photoconductive electrode with a light pattern and render conductive illuminated areas of the photoconductive electrode so that a patterned deposit of the electrically charged colloidal material is formed on the flexible electrode web substrate.
Inventors:
;
Issue Date:
OSTI Identifier:
1361547
Assignee:
Lawrence Levermore National Security, LLC LLNL
Patent Number(s):
9,670,587
Application Number:
15/015,062
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2016 Feb 03
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Works referenced in this record:

Light-Directed Electrophoretic Deposition: A New Additive Manufacturing Technique for Arbitrarily Patterned 3D Composites
journal, February 2014
  • Pascall, Andrew J.; Qian, Fang; Wang, Gongming
  • Advanced Materials, Vol. 26, Issue 14, p. 2252-2256
  • DOI: 10.1002/adma.201304953