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This content will become publicly available on September 29, 2018

Title: Design Parameters for Subwavelength Transparent Conductive Nanolattices

Recent advancements with the directed assembly of block copolymers have enabled the fabrication over cm 2 areas of highly ordered metal nanowire meshes, or nanolattices, which are of significant interest as transparent electrodes. Compared to randomly dispersed metal nanowire networks that have long been considered the most promising next-generation transparent electrode material, such ordered nanolattices represent a new design paradigm that is yet to be optimized. Here in this paper, through optical and electrical simulations, we explore the potential design parameters for such nanolattices as transparent conductive electrodes, elucidating relationships between the nanowire dimensions, defects, and the nanolattices’ conductivity and transmissivity. We find that having an ordered nanowire network significantly decreases the length of nanowires required to attain both high transmissivity and high conductivity, and we quantify the network’s tolerance to defects in relation to other design constraints. Furthermore, we explore how both optical and electrical anisotropy can be introduced to such nanolattices, opening an even broader materials design space and possible set of applications.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ; ORCiD logo [4]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Materials Science Division; Univ. of California, Santa Cruz, CA (United States). Baskin School of Engineering
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). National Ignition Facility
  3. Univ. of California, Santa Cruz, CA (United States). Baskin School of Engineering
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Materials Science Division
Publication Date:
Report Number(s):
LLNL-JRNL-732399
Journal ID: ISSN 1944-8244
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 9; Journal Issue: 40; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; 77 NANOSCIENCE AND NANOTECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; defect effects; electrical and optical anisotropy; metal nanowires; subwavelength periodicity; transparent conductive nanolattice; transparent electrodes
OSTI Identifier:
1410005