Morphology and interdiffusion control to improve adhesion and cohesion properties in inverted polymer solar cells

Handle URI:
http://hdl.handle.net/10754/598891
Title:
Morphology and interdiffusion control to improve adhesion and cohesion properties in inverted polymer solar cells
Authors:
Dupont, Stephanie R.; Voroshazi, Eszter; Nordlund, Dennis; Dauskardt, Reinhold H.
Abstract:
© 2014 Elsevier B.V. All rights reserved. The role of pre-electrode deposition annealing on the morphology and the fracture properties of polymer solar cells is discussed. We found an increase in adhesion at the weak P3HT:PCBM/PEDOT:PSS interface with annealing temperature, caused by increased interdiffusion between the organic layers. The formation of micrometer sized PCBM crystallites, which occurs with annealing above the crystallization temperature of PCBM, initially weakened the P3HT:PCBM layer itself. Further annealing improved the cohesion, due to a pull-out toughening mechanism of the growing PCBM clusters. Understanding how the morphology, tuned by annealing, affects the adhesive and cohesive properties in these organic films is essential for the mechanical integrity of OPV devices.
Citation:
Dupont SR, Voroshazi E, Nordlund D, Dauskardt RH (2015) Morphology and interdiffusion control to improve adhesion and cohesion properties in inverted polymer solar cells. Solar Energy Materials and Solar Cells 132: 443–449. Available: http://dx.doi.org/10.1016/j.solmat.2014.09.013.
Publisher:
Elsevier BV
Journal:
Solar Energy Materials and Solar Cells
KAUST Grant Number:
KUS-C1-015-21
Issue Date:
Jan-2015
DOI:
10.1016/j.solmat.2014.09.013
Type:
Article
ISSN:
0927-0248
Sponsors:
This research was supported by the Center for Advanced Molecular Photovoltaics (CAMP) supported by King Abdullah University of Science and Technology (KAUST) under Award no. KUS-C1-015-21. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a Directorate of SLAC National Accelerator Laboratory and an Office of Science User Facility operated for the U.S. Department of Energy Office of Science by Stanford University.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorDupont, Stephanie R.en
dc.contributor.authorVoroshazi, Eszteren
dc.contributor.authorNordlund, Dennisen
dc.contributor.authorDauskardt, Reinhold H.en
dc.date.accessioned2016-02-25T13:43:11Zen
dc.date.available2016-02-25T13:43:11Zen
dc.date.issued2015-01en
dc.identifier.citationDupont SR, Voroshazi E, Nordlund D, Dauskardt RH (2015) Morphology and interdiffusion control to improve adhesion and cohesion properties in inverted polymer solar cells. Solar Energy Materials and Solar Cells 132: 443–449. Available: http://dx.doi.org/10.1016/j.solmat.2014.09.013.en
dc.identifier.issn0927-0248en
dc.identifier.doi10.1016/j.solmat.2014.09.013en
dc.identifier.urihttp://hdl.handle.net/10754/598891en
dc.description.abstract© 2014 Elsevier B.V. All rights reserved. The role of pre-electrode deposition annealing on the morphology and the fracture properties of polymer solar cells is discussed. We found an increase in adhesion at the weak P3HT:PCBM/PEDOT:PSS interface with annealing temperature, caused by increased interdiffusion between the organic layers. The formation of micrometer sized PCBM crystallites, which occurs with annealing above the crystallization temperature of PCBM, initially weakened the P3HT:PCBM layer itself. Further annealing improved the cohesion, due to a pull-out toughening mechanism of the growing PCBM clusters. Understanding how the morphology, tuned by annealing, affects the adhesive and cohesive properties in these organic films is essential for the mechanical integrity of OPV devices.en
dc.description.sponsorshipThis research was supported by the Center for Advanced Molecular Photovoltaics (CAMP) supported by King Abdullah University of Science and Technology (KAUST) under Award no. KUS-C1-015-21. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a Directorate of SLAC National Accelerator Laboratory and an Office of Science User Facility operated for the U.S. Department of Energy Office of Science by Stanford University.en
dc.publisherElsevier BVen
dc.subjectAdhesion and delaminationen
dc.subjectAnnealingen
dc.subjectCohesionen
dc.subjectNEXAFSen
dc.subjectPolymer solar cellsen
dc.subjectReliabilityen
dc.titleMorphology and interdiffusion control to improve adhesion and cohesion properties in inverted polymer solar cellsen
dc.typeArticleen
dc.identifier.journalSolar Energy Materials and Solar Cellsen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
dc.contributor.institutionIMEC Vzw, Leuven, Belgiumen
dc.contributor.institutionStanford Linear Accelerator Center, Menlo Park, United Statesen
kaust.grant.numberKUS-C1-015-21en
kaust.grant.fundedcenterCenter for Advanced Molecular Photovoltaics (CAMP)en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.