Assessing the Use of Polyvinylidene Fluoride as a Binder Material for Producing Carbon Based Inks Suitable for HTM-Free Perovskite Solar Cells

  1. Llarena, E.
  2. González-Diaz, B. 1
  3. González-Pérez, S.
  4. Ocaña, L.
  5. Montes, C.
  1. 1 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

Actas:
38th European Photovoltaic Solar Energy Conference and Exhibition

Editorial: WIP

ISBN: 3-936338-78-7

Año de publicación: 2021

Páginas: 426-429

Tipo: Aportación congreso

DOI: 10.4229/EUPVSEC20212021-3BV.1.9 GOOGLE SCHOLAR lock_openAcceso abierto editor

Resumen

A process has been devised to develop pastes based on the use of polyvinylidene fluoride (PVDF), as a binder material, together with graphite and black carbon, as conductive materials to produce back contacts to HTMfree perovskite solar cells. Although the consistency of the pastes produced was not compatible with their spreading using Dr. Blade techniques, contacts were deposited by an alternative method, similar to cement rendering, as it was done in previous attempts, when ethylene-vinyl acetate (EVA) was being evaluated as binder material, resulting in a more than three-fold reduction in the measured contact resistance.