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Title: Transparent Conductive Anodes for Solid-State Lighting, Topic 9b. Final Technical Report

Abstract

The overall goal of this SBIR program is to develop improved, scalable manufacturing processes for highly conductive reduced Graphene Oxide (rGO) based nano-scale layers possessing suppressed inter-sheet resistivity for highly conductive and transparent coatings. The method is based on (a) enveloping individual GO sheets in a nanometer thick polymer layer (EVL) allowing for nearly-perfect formation of GO monolayers by scalable conventional wet processing and (b) incorporation into the bi-layer GO structure a polymer interlayer (polymer linker layer, PLL) providing carbon atoms that “weld” together rGO sheets during the GO reduction. During Phase I of the project GO films on Si wafers and glass substrates were made and characterized. Mono- bi-, tri and six-layered GO films were made. To prepare GO films GO flakes were coated with monolayer of a copolymer. Polymer coated flakes were dip-coated onto substrates to form monolayers. To form bi- or trilayers of GO, PLL interlayer was deposited between GO films. PLL with various molecular weights was utilized to prepare bi-layered GO films. To form 6-layered GO films, graphene flakes were coated with another custom copolymer and deposited onto substrates. GO films deposited onto Si and glass substrates were reduced in a plasma environment. Films were characterizedmore » with AFM, UV-Vis spectroscopy and 4 probe conductivity measurements. Electrical conductivity measurements of the reduced samples did not show any measurable conductivity. Based on the technical results of the phase I of the project, Tetramer decided not to apply for Phase II.« less

Authors:
Publication Date:
Research Org.:
Tetramer Technologies, LLC
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Science (SC)
OSTI Identifier:
1506995
Report Number(s):
DOE-TT-18814-1
DOE Contract Number:  
SC0018814
Type / Phase:
SBIR (Phase I)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; solid-state lighting, transparent anodes, graphene, LED

Citation Formats

Zdyrko, Bogdan. Transparent Conductive Anodes for Solid-State Lighting, Topic 9b. Final Technical Report. United States: N. p., 2019. Web.
Zdyrko, Bogdan. Transparent Conductive Anodes for Solid-State Lighting, Topic 9b. Final Technical Report. United States.
Zdyrko, Bogdan. Mon . "Transparent Conductive Anodes for Solid-State Lighting, Topic 9b. Final Technical Report". United States.
@article{osti_1506995,
title = {Transparent Conductive Anodes for Solid-State Lighting, Topic 9b. Final Technical Report},
author = {Zdyrko, Bogdan},
abstractNote = {The overall goal of this SBIR program is to develop improved, scalable manufacturing processes for highly conductive reduced Graphene Oxide (rGO) based nano-scale layers possessing suppressed inter-sheet resistivity for highly conductive and transparent coatings. The method is based on (a) enveloping individual GO sheets in a nanometer thick polymer layer (EVL) allowing for nearly-perfect formation of GO monolayers by scalable conventional wet processing and (b) incorporation into the bi-layer GO structure a polymer interlayer (polymer linker layer, PLL) providing carbon atoms that “weld” together rGO sheets during the GO reduction. During Phase I of the project GO films on Si wafers and glass substrates were made and characterized. Mono- bi-, tri and six-layered GO films were made. To prepare GO films GO flakes were coated with monolayer of a copolymer. Polymer coated flakes were dip-coated onto substrates to form monolayers. To form bi- or trilayers of GO, PLL interlayer was deposited between GO films. PLL with various molecular weights was utilized to prepare bi-layered GO films. To form 6-layered GO films, graphene flakes were coated with another custom copolymer and deposited onto substrates. GO films deposited onto Si and glass substrates were reduced in a plasma environment. Films were characterized with AFM, UV-Vis spectroscopy and 4 probe conductivity measurements. Electrical conductivity measurements of the reduced samples did not show any measurable conductivity. Based on the technical results of the phase I of the project, Tetramer decided not to apply for Phase II.},
doi = {},
url = {https://www.osti.gov/biblio/1506995}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

Technical Report:
This technical report may be released as soon as April 15, 2023
Other availability
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