Synergy of Catechol-Functionalized Zinc Oxide Nanorods and Porphyrins in Layer-by-Layer Assemblies

Alexandra Burger, Andreas Kunzmann, Rubén D. Costa, Rubitha Srikantharajah, Wolfgang Peukert, Dirk M. Guldi, Andreas Hirsch

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Catechol-functionalized, positively charged ZnO nanorods (NRs) and anionic porphyrins were integrated into layer-by-layer (LbL) assemblies. In general, this study focuses on the impact that different porphyrins, varying in size and number of negative charges, exert on the LbL architecture in terms of morphology and spectroscopy. In particular, through a combination of analytical methods, including UV/Vis spectroscopy, SEM, and profilometry, valuable insights into LbL assembly formation were gathered. A key feature was the surface coverage in the resulting films. Denser films and surface coverages were realized when highly negatively charged and sterically demanding porphyrins were employed. As a complement to basic characterization, the LbL assembled films were used to fabricate proof-of-concept solar cells.

Original languageEnglish
Pages (from-to)7896-7905
Number of pages10
JournalChemistry - A European Journal
Volume24
Issue number31
DOIs
Publication statusPublished - 2018 Jun 4
Externally publishedYes

Keywords

  • layer-by-layer assemblies
  • layered compounds
  • porphyrins
  • solar energy conversion
  • thin films
  • ZnO nanorods

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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