Continuous, Highly Flexible, and Transparent Graphene Films by Chemical Vapor Deposition for Organic Photovoltaics

Handle URI:
http://hdl.handle.net/10754/597850
Title:
Continuous, Highly Flexible, and Transparent Graphene Films by Chemical Vapor Deposition for Organic Photovoltaics
Authors:
Gomez De Arco, Lewis; Zhang, Yi; Schlenker, Cody W.; Ryu, Koungmin; Thompson, Mark E.; Zhou, Chongwu
Abstract:
We report the implementation of continuous, highly flexible, and transparent graphene films obtained by chemical vapor deposition (CVD) as transparent conductive electrodes (TCE) in organic photovoltaic cells. Graphene films were synthesized by CVD, transferred to transparent substrates, and evaluated in organic solar cell heterojunctions (TCE/poly-3,4- ethylenedioxythiophene:poly styrenesulfonate (PEDOT:PSS)/copper phthalocyanine/fullerene/bathocuproine/aluminum). Key to our success is the continuous nature of the CVD graphene films, which led to minimal surface roughness (∼ 0.9 nm) and offered sheet resistance down to 230 Ω/sq (at 72% transparency), much lower than stacked graphene flakes at similar transparency. In addition, solar cells with CVD graphene and indium tin oxide (ITO) electrodes were fabricated side-by-side on flexible polyethylene terephthalate (PET) substrates and were confirmed to offer comparable performance, with power conversion efficiencies (η) of 1.18 and 1.27%, respectively. Furthermore, CVD graphene solar cells demonstrated outstanding capability to operate under bending conditions up to 138°, whereas the ITO-based devices displayed cracks and irreversible failure under bending of 60°. Our work indicates the great potential of CVD graphene films for flexible photovoltaic applications. © 2010 American Chemical Society.
Citation:
Gomez De Arco L, Zhang Y, Schlenker CW, Ryu K, Thompson ME, et al. (2010) Continuous, Highly Flexible, and Transparent Graphene Films by Chemical Vapor Deposition for Organic Photovoltaics. ACS Nano 4: 2865–2873. Available: http://dx.doi.org/10.1021/nn901587x.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Nano
KAUST Grant Number:
KUS-C1-015-21
Issue Date:
25-May-2010
DOI:
10.1021/nn901587x
PubMed ID:
20394355
Type:
Article
ISSN:
1936-0851; 1936-086X
Sponsors:
This work was supported by the National Science Foundation under Grant CCF-0702204, by the Center for Advanced Molecular Photovoltaics (CAMP) (KUS-C1-015-21), made by King Abdullah University of Science and Technology (KAUST), and by Global Photonic Energy Corporation.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorGomez De Arco, Lewisen
dc.contributor.authorZhang, Yien
dc.contributor.authorSchlenker, Cody W.en
dc.contributor.authorRyu, Koungminen
dc.contributor.authorThompson, Mark E.en
dc.contributor.authorZhou, Chongwuen
dc.date.accessioned2016-02-25T12:57:46Zen
dc.date.available2016-02-25T12:57:46Zen
dc.date.issued2010-05-25en
dc.identifier.citationGomez De Arco L, Zhang Y, Schlenker CW, Ryu K, Thompson ME, et al. (2010) Continuous, Highly Flexible, and Transparent Graphene Films by Chemical Vapor Deposition for Organic Photovoltaics. ACS Nano 4: 2865–2873. Available: http://dx.doi.org/10.1021/nn901587x.en
dc.identifier.issn1936-0851en
dc.identifier.issn1936-086Xen
dc.identifier.pmid20394355en
dc.identifier.doi10.1021/nn901587xen
dc.identifier.urihttp://hdl.handle.net/10754/597850en
dc.description.abstractWe report the implementation of continuous, highly flexible, and transparent graphene films obtained by chemical vapor deposition (CVD) as transparent conductive electrodes (TCE) in organic photovoltaic cells. Graphene films were synthesized by CVD, transferred to transparent substrates, and evaluated in organic solar cell heterojunctions (TCE/poly-3,4- ethylenedioxythiophene:poly styrenesulfonate (PEDOT:PSS)/copper phthalocyanine/fullerene/bathocuproine/aluminum). Key to our success is the continuous nature of the CVD graphene films, which led to minimal surface roughness (∼ 0.9 nm) and offered sheet resistance down to 230 Ω/sq (at 72% transparency), much lower than stacked graphene flakes at similar transparency. In addition, solar cells with CVD graphene and indium tin oxide (ITO) electrodes were fabricated side-by-side on flexible polyethylene terephthalate (PET) substrates and were confirmed to offer comparable performance, with power conversion efficiencies (η) of 1.18 and 1.27%, respectively. Furthermore, CVD graphene solar cells demonstrated outstanding capability to operate under bending conditions up to 138°, whereas the ITO-based devices displayed cracks and irreversible failure under bending of 60°. Our work indicates the great potential of CVD graphene films for flexible photovoltaic applications. © 2010 American Chemical Society.en
dc.description.sponsorshipThis work was supported by the National Science Foundation under Grant CCF-0702204, by the Center for Advanced Molecular Photovoltaics (CAMP) (KUS-C1-015-21), made by King Abdullah University of Science and Technology (KAUST), and by Global Photonic Energy Corporation.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectChemical vapor depositionen
dc.subjectFlexible photovoltaicsen
dc.subjectFlexible solar cellen
dc.subjectGrapheneen
dc.subjectOrganic photovoltaicsen
dc.subjectTransparent conductoren
dc.subjectTransparent electrodeen
dc.titleContinuous, Highly Flexible, and Transparent Graphene Films by Chemical Vapor Deposition for Organic Photovoltaicsen
dc.typeArticleen
dc.identifier.journalACS Nanoen
dc.contributor.institutionUniversity of Southern California, Los Angeles, United Statesen
kaust.grant.numberKUS-C1-015-21en
kaust.grant.fundedcenterCenter for Advanced Molecular Photovoltaics (CAMP)en

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