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  • Urbina, AntonioAdvanced Materials for Production and Storing of Energy, Technical University of Cartagena, Plaza del Hospital 1, Cartagena, 30202, Spain (author)

Neutron reflectometry and hard X-ray photoelectron spectroscopy study of the vertical segregation of PCBM in organic solar cells

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • Elsevier,2019
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:mau-4938
  • https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-4938URI
  • https://doi.org/10.1016/j.solmat.2018.10.004DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The composition of the active layer of a benchmark functional glass/ITO/[P3HT:PCBM][1.1:1]/Al organic solar cell has been studied by neutron reflectometry (NR) and hard X-ray photoelectron spectroscopy (HAXPES). Thermal annealing was performed in several steps and NR and HAXPES were recorded for every temperature. By fitting the NR results to a model composed of several layers, the scattering length density (SLD) distribution through the sample was obtained, and from this SLD profile, the evolution of the composition of the active layer as a function of temperature was established. For the outer layers, HAXPES results confirm the composition evolution. The results show that PCBM tends to segregate reducing the initial concentration of PCBM in the central part of the active layer and increasing its concentration towards both interfaces. The effect of the Al electrode as studied by HAXPES on the nearest zone of the active layer (up to 50 nm) is to stabilize the P3HT depletion in this area, an effect which is not affected by thermal annealing.

Subject headings and genre

  • Organic solar cells
  • Neutron reflectometry
  • Hard X-ray photoelectron spectroscopy
  • Conjugated polymers
  • P3HT:PCBM

Added entries (persons, corporate bodies, meetings, titles ...)

  • Abad, JoseAdvanced Materials for Production and Storing of Energy, Technical University of Cartagena, Plaza del Hospital 1, Cartagena, 30202, Spain (author)
  • Fernandez Romero, Antonio J.Advanced Materials for Production and Storing of Energy, Technical University of Cartagena, Plaza del Hospital 1, Cartagena, 30202, Spain (author)
  • Lacasa, Jesus S.Departament of Physics, Instituto Universitario de Investigación en Óptica y Nanofísica (IUIOyN), University of Murcia, Campus de Espinardo, Murcia, 30100, Spain (author)
  • Colchero, JaimeDepartament of Physics, Instituto Universitario de Investigación en Óptica y Nanofísica (IUIOyN), University of Murcia, Campus de Espinardo, Murcia, 30100, Spain (author)
  • Gonzalez-Martinez, Juan FMalmö universitet,Institutionen för biomedicinsk vetenskap (BMV),Biofilms Research Center for Biointerfaces(Swepub:mau)ah5106 (author)
  • Rubio-Zuazo, JuanSpLine CRG BM25 Beamline, European Synchrotron Radiation Facility, 71 Avenue des Martys, Grenoble, 38000, France; Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (ICMM-CSIC), Madrid, 28049, Spain (author)
  • Castro, German R.SpLine CRG BM25 Beamline, European Synchrotron Radiation Facility, 71 Avenue des Martys, Grenoble, 38000, France; Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (ICMM-CSIC), Madrid, 28049, Spain (author)
  • Gutfreund, PhilippInstitut Laue-Langevin, Grenoble Cedex, 38042, France (author)
  • Advanced Materials for Production and Storing of Energy, Technical University of Cartagena, Plaza del Hospital 1, Cartagena, 30202, SpainDepartament of Physics, Instituto Universitario de Investigación en Óptica y Nanofísica (IUIOyN), University of Murcia, Campus de Espinardo, Murcia, 30100, Spain (creator_code:org_t)

Related titles

  • In:Solar Energy Materials and Solar Cells: Elsevier191, s. 62-700927-02481879-3398

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