Understanding the mechanisms that change the conductivity of damaged ITO-coated polymeric films: A micro-mechanical investigation

Handle URI:
http://hdl.handle.net/10754/563814
Title:
Understanding the mechanisms that change the conductivity of damaged ITO-coated polymeric films: A micro-mechanical investigation
Authors:
Nasr Saleh, Mohamed; Lubineau, Gilles ( 0000-0002-7370-6093 )
Abstract:
Degradation from mechanical loading of transparent electrodes made of indium tin oxide (ITO) endangers the integrity of any material based on these electrodes, including flexible organic solar cells. However, how different schemes of degradation change the conductivity of ITO devices remains unclear. We propose a systematic micro-mechanics-based approach to clarify the relationship between degradation and changes in electrical resistance. By comparing experimentally measured channel crack densities to changes in electrical resistance returned by the different micro-mechanical schemes, we highlight the key role played by the residual conductivity in the interface between the ITO electrode and its substrate after delamination. We demonstrate that channel cracking alone does not explain the experimental observations. Our results indicate that delamination has to take place between the ITO electrode and the substrate layers and that the residual conductivity of this delaminated interface plays a major role in changes in electrical resistance of the degraded device. © 2014 Elsevier B.V.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Elsevier BV
Journal:
Solar Energy Materials and Solar Cells
Issue Date:
Nov-2014
DOI:
10.1016/j.solmat.2014.07.011
Type:
Article
ISSN:
09270248
Sponsors:
Funding for this study was provided by KAUST-OCRF. The authors are grateful to King Abdullah University of Science and Technology for its financial support (AEA Round 3 project "Hierarchically-based Adaptive and Flexible Electronic Energy Harvesting Membranes for Large Surface Area Deployment").
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorNasr Saleh, Mohameden
dc.contributor.authorLubineau, Gillesen
dc.date.accessioned2015-08-03T12:11:05Zen
dc.date.available2015-08-03T12:11:05Zen
dc.date.issued2014-11en
dc.identifier.issn09270248en
dc.identifier.doi10.1016/j.solmat.2014.07.011en
dc.identifier.urihttp://hdl.handle.net/10754/563814en
dc.description.abstractDegradation from mechanical loading of transparent electrodes made of indium tin oxide (ITO) endangers the integrity of any material based on these electrodes, including flexible organic solar cells. However, how different schemes of degradation change the conductivity of ITO devices remains unclear. We propose a systematic micro-mechanics-based approach to clarify the relationship between degradation and changes in electrical resistance. By comparing experimentally measured channel crack densities to changes in electrical resistance returned by the different micro-mechanical schemes, we highlight the key role played by the residual conductivity in the interface between the ITO electrode and its substrate after delamination. We demonstrate that channel cracking alone does not explain the experimental observations. Our results indicate that delamination has to take place between the ITO electrode and the substrate layers and that the residual conductivity of this delaminated interface plays a major role in changes in electrical resistance of the degraded device. © 2014 Elsevier B.V.en
dc.description.sponsorshipFunding for this study was provided by KAUST-OCRF. The authors are grateful to King Abdullah University of Science and Technology for its financial support (AEA Round 3 project "Hierarchically-based Adaptive and Flexible Electronic Energy Harvesting Membranes for Large Surface Area Deployment").en
dc.publisherElsevier BVen
dc.subjectChannel cracksen
dc.subjectConductivityen
dc.subjectDelaminationen
dc.subjectFlexible electronicsen
dc.subjectITOen
dc.titleUnderstanding the mechanisms that change the conductivity of damaged ITO-coated polymeric films: A micro-mechanical investigationen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)en
dc.identifier.journalSolar Energy Materials and Solar Cellsen
kaust.authorLubineau, Gillesen
kaust.authorNasr Saleh, Mohameden
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