Quaternized Pyridyloxy Phthalocyanines Render Aqueous Electron-Donor Carbon Nanotubes as Unprecedented Supramolecular Materials for Energy Conversion

Eduardo Anaya-Plaza, María Moreno Oliva, Andreas Kunzmann, Carlos Romero-Nieto, Rubén D. Costa, Andrés De La Escosura, Dirk M. Guldi, Tomás Torres

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Exploring new properties in known materials, sometimes even achieving behaviors opposite to those traditionally encountered, is a fundamental aspect of innovation in materials science. In the field of energy conversion, for example, the development of water-processed organic solar cells provides environmentally friendlier materials, which contribute to reduce health risks. Herein, a novel approach is described to produce water-soluble electron-donor single wall carbon nanotube (SWCNT) hybrids based on the noncovalent immobilization of quaternized pyridyloxy zinc phthalocyanines (ZnPc) with a varying number of pyridyl substituents. Moreover, the excellent electron-accepting ability of the latter ZnPcs is reported. The introduction of tert-butylphenyl groups at the pyridines enables for the first time a complete characterization. The electron-acceptor nature of the ZnPcs enables switching the role of SWCNTs within the resulting supramolecular hybrids. Finally, a proof-of-concept demonstration of the SWCNT/ZnPc hybrids' capacity for energy conversion is presented, paving their way to possible use as active layer material in solar cells processed entirely from aqueous solutions.

Original languageEnglish
Pages (from-to)7418-7427
Number of pages10
JournalAdvanced Functional Materials
Volume25
Issue number48
DOIs
Publication statusPublished - 2015 Dec 22
Externally publishedYes

Keywords

  • carbon nanotubes
  • phthalocyanines
  • supramolecular aqueous photovoltaics

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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