Inkjet-Printed TiO2/Fullerene Composite Films for Planar Perovskite Solar Cells

Aron J. Huckaba, Inés Garcia-Benito, Hiroyuki Kanda, Naoyuki Shibayama, Emad Oveisi, Sachin Kinge, Mohammad K. Nazeeruddin

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Perovskite solar cells have garnered and held international research interest, due to ever-climbing power conversion efficiency values, now >25 %. Some high efficiency configurations utilize a compact TiO2 layer underneath a mesoporous TiO2 layer, both of which require high temperature annealing steps that could hinder perovskite commercialization. To address the high thermal budget, we chose to use inkjet-printing to combine the two layers into a single TiO2 film, which incorporates both nanoparticle and molecular precursor as well as organic fullerene additives. We printed the ink on fluorine-doped tin oxide, and after annealing at various temperatures, we found that 400 °C was the optimum annealing temperature for the inkjet-printed electron transport layers, which is significantly lower than the 500 °C required to anneal typical mesoporous TiO2 films.

Original languageEnglish
Article numbere2000044
JournalHelvetica Chimica Acta
Issue number5
StatePublished - May 1 2020

Bibliographical note

Publisher Copyright:
© 2020 Wiley-VHCA AG, Zurich, Switzerland


  • composite transport layer
  • fullerenes
  • inkjet printing
  • nanoparticles
  • perovskite solar cells
  • solar cells

ASJC Scopus subject areas

  • Catalysis
  • Biochemistry
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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