Highly efficient organic solar Cells based on a robust room-temperature solution-processed copper iodide hole transporter

Handle URI:
http://hdl.handle.net/10754/561611
Title:
Highly efficient organic solar Cells based on a robust room-temperature solution-processed copper iodide hole transporter
Authors:
Zhao, Kui ( 0000-0001-9348-7943 ) ; Ngongang Ndjawa, Guy Olivier ( 0000-0001-7400-9540 ) ; Jagadamma, Lethy Krishnan ( 0000-0003-4226-017X ) ; El Labban, Abdulrahman ( 0000-0001-9891-0851 ) ; Hu, Hanlin ( 0000-0001-5617-0998 ) ; Wang, Qingxiao; Li, Ruipeng; Abdelsamie, Maged ( 0000-0002-4631-5409 ) ; Beaujuge, Pierre; Amassian, Aram ( 0000-0002-5734-1194 )
Abstract:
Achieving high performance and reliable organic solar cells hinges on the development of stable and energetically suitable hole transporting buffer layers in tune with the electrode and photoactive materials of the solar cell stack. Here we have identified solution-processed copper(I) iodide (CuI) thin films with low-temperature processing conditions as an effective hole–transporting layer (HTL) for a wide range of polymer:fullerene bulk heterojunction (BHJ) systems. The solar cells using CuI HTL show higher power conversion efficiency (PCE) in standard device structure for polymer blends, up to PCE of 8.8%, as compared with poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL, for a broad range of polymer:fullerene systems. The CuI layer properties and solar cell device behavior are shown to be remarkably robust and insensitive to a wide range of processing conditions of the HTL, including processing solvent, annealing temperature (room temperature up to 200 °C), and film thickness. CuI is also shown to improve the overall lifetime of solar cells in the standard architecture as compared to PEDOT:PSS. We further demonstrate promising solar cell performance when using CuI as top HTL in an inverted device architecture. The observation of uncommon properties, such as photoconductivity of CuI and templating effects on the BHJ layer formation, are also discussed. This study points to CuI as being a good candidate to replace PEDOT:PSS in solution-processed solar cells thanks to the facile implementation and demonstrated robustness of CuI thin films.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)
Citation:
Highly efficient organic solar Cells based on a robust room-temperature solution-processed copper iodide hole transporter 2015 Nano Energy
Publisher:
Elsevier BV
Journal:
Nano Energy
Issue Date:
30-Jul-2015
DOI:
10.1016/j.nanoen.2015.07.018
Type:
Article
ISSN:
22112855
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S2211285515003110
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorZhao, Kuien
dc.contributor.authorNgongang Ndjawa, Guy Olivieren
dc.contributor.authorJagadamma, Lethy Krishnanen
dc.contributor.authorEl Labban, Abdulrahmanen
dc.contributor.authorHu, Hanlinen
dc.contributor.authorWang, Qingxiaoen
dc.contributor.authorLi, Ruipengen
dc.contributor.authorAbdelsamie, Mageden
dc.contributor.authorBeaujuge, Pierreen
dc.contributor.authorAmassian, Aramen
dc.date.accessioned2015-08-02T10:25:01Zen
dc.date.available2015-08-02T10:25:01Zen
dc.date.issued2015-07-30en
dc.identifier.citationHighly efficient organic solar Cells based on a robust room-temperature solution-processed copper iodide hole transporter 2015 Nano Energyen
dc.identifier.issn22112855en
dc.identifier.doi10.1016/j.nanoen.2015.07.018en
dc.identifier.urihttp://hdl.handle.net/10754/561611en
dc.description.abstractAchieving high performance and reliable organic solar cells hinges on the development of stable and energetically suitable hole transporting buffer layers in tune with the electrode and photoactive materials of the solar cell stack. Here we have identified solution-processed copper(I) iodide (CuI) thin films with low-temperature processing conditions as an effective hole–transporting layer (HTL) for a wide range of polymer:fullerene bulk heterojunction (BHJ) systems. The solar cells using CuI HTL show higher power conversion efficiency (PCE) in standard device structure for polymer blends, up to PCE of 8.8%, as compared with poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL, for a broad range of polymer:fullerene systems. The CuI layer properties and solar cell device behavior are shown to be remarkably robust and insensitive to a wide range of processing conditions of the HTL, including processing solvent, annealing temperature (room temperature up to 200 °C), and film thickness. CuI is also shown to improve the overall lifetime of solar cells in the standard architecture as compared to PEDOT:PSS. We further demonstrate promising solar cell performance when using CuI as top HTL in an inverted device architecture. The observation of uncommon properties, such as photoconductivity of CuI and templating effects on the BHJ layer formation, are also discussed. This study points to CuI as being a good candidate to replace PEDOT:PSS in solution-processed solar cells thanks to the facile implementation and demonstrated robustness of CuI thin films.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S2211285515003110en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Nano Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Nano Energy, 30 July 2015. DOI: 10.1016/j.nanoen.2015.07.018en
dc.subjectOrganic photovoltaicsen
dc.subjectOrganic solar cellsen
dc.subjectCopper iodideen
dc.subjectHole transporting layeren
dc.subjectBuffer layeren
dc.subjectSolution processeden
dc.titleHighly efficient organic solar Cells based on a robust room-temperature solution-processed copper iodide hole transporteren
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.identifier.journalNano Energyen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZhao, Kuien
kaust.authorJagadamma, Lethy Krishnanen
kaust.authorBeaujuge, Pierreen
kaust.authorAmassian, Aramen
kaust.authorNgongang Ndjawa, Guy Olivieren
kaust.authorEl Labban, Abdulrahmanen
kaust.authorHu, Hanlinen
kaust.authorWang, Qingxiaoen
kaust.authorLi, Ruipengen
kaust.authorAbdelsamie, Mageden
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