Investigation of NiOx-hole transport layers in triple cation perovskite solar cells

Stefan Weber, Thomas Rath*, Jimmy Mangalam, Birgit Kunert, Anna Maria Coclite, Martin Bauch, Theodoros Dimopoulos, Gregor Trimmel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Perovskite solar cells with a planar p-i-n device structure offer easy processability at low temperatures, suitable for roll-to-roll fabrication on flexible substrates. Herein we investigate different hole transport layers (solution processed NiOx, sputtered NiOx, PEDOT:PSS) in planar p-i-n perovskite solar cells using the triple cation lead halide perovskite Cs0.08(MA0.17FA0.83)0.92Pb(I0.83Br0.17)3 as absorber layer. Overall, reproducible solar cell performances with power conversion efficiencies up to 12.8% were obtained using solution processed NiOx as hole transport layer in the devices. Compared to that, devices with PEDOT:PSS as hole transport layer yield efficiencies of approx. 8.4%. Further improvement of the fill factor was achieved by the use of an additional zinc oxide nanoparticle layer between the PC60BM film and the Ag electrode.

Original languageEnglish
Pages (from-to)1847-1855
Number of pages9
JournalJournal of Materials Science: Materials in Electronics
Issue number3
Publication statusPublished - 1 Feb 2018

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fields of Expertise

  • Advanced Materials Science

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