Bromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Losses

Handle URI:
http://hdl.handle.net/10754/561080
Title:
Bromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Losses
Authors:
Mansour, Ahmed ( 0000-0002-3411-6808 ) ; Dey, Sukumar; Amassian, Aram ( 0000-0002-5734-1194 ) ; Tanielian, Minas H.
Abstract:
The unique optical and electrical properties of graphene have triggered great interest in its application as a transparent conducting electrode material and significant effort has been invested in achieving high conductivity while maintaining transparency. Doping of graphene has been a popular route for reducing its sheet resistance, but this has typically come at a significant cost in optical transmission. We demonstrate doping of few layers graphene with bromine as a means of enhancing the conductivity via intercalation without major optical losses. Our results demonstrate the encapsulation of bromine leads to air-stable transparent conducting electrodes with five-fold improvement of sheet resistance reaching at the cost of only 2-3% loss of optical transmission. The remarkably low tradeoff in optical transparency leads to the highest enhancements in the figure of merit reported thus far for FLG. Furthermore, we tune the workfunction by up to 0.3 eV by tuning the bromine content. These results should help pave the way for further development of graphene as a potential substitute to transparent conducting polymers and metal oxides used in optoelectronics, photovoltaics and beyond.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)
Citation:
Bromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Losses 2015:150722102326006 ACS Applied Materials & Interfaces
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
22-Jul-2015
DOI:
10.1021/acsami.5b03274
Type:
Article
ISSN:
1944-8244; 1944-8252
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acsami.5b03274
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorMansour, Ahmeden
dc.contributor.authorDey, Sukumaren
dc.contributor.authorAmassian, Aramen
dc.contributor.authorTanielian, Minas H.en
dc.date.accessioned2015-07-27T12:22:45Zen
dc.date.available2015-07-27T12:22:45Zen
dc.date.issued2015-07-22en
dc.identifier.citationBromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Losses 2015:150722102326006 ACS Applied Materials & Interfacesen
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.doi10.1021/acsami.5b03274en
dc.identifier.urihttp://hdl.handle.net/10754/561080en
dc.description.abstractThe unique optical and electrical properties of graphene have triggered great interest in its application as a transparent conducting electrode material and significant effort has been invested in achieving high conductivity while maintaining transparency. Doping of graphene has been a popular route for reducing its sheet resistance, but this has typically come at a significant cost in optical transmission. We demonstrate doping of few layers graphene with bromine as a means of enhancing the conductivity via intercalation without major optical losses. Our results demonstrate the encapsulation of bromine leads to air-stable transparent conducting electrodes with five-fold improvement of sheet resistance reaching at the cost of only 2-3% loss of optical transmission. The remarkably low tradeoff in optical transparency leads to the highest enhancements in the figure of merit reported thus far for FLG. Furthermore, we tune the workfunction by up to 0.3 eV by tuning the bromine content. These results should help pave the way for further development of graphene as a potential substitute to transparent conducting polymers and metal oxides used in optoelectronics, photovoltaics and beyond.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.5b03274en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsami.5b03274.en
dc.titleBromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Lossesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.identifier.journalACS Applied Materials & Interfacesen
dc.eprint.versionPost-printen
dc.contributor.institutionBoeing Research and Technology, Seattle, WA 9812432 499, United Statesen
kaust.authorAmassian, Aramen
kaust.authorMansour, Ahmeden
kaust.authorDey, Sukumaren
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