Grafting Poly(3-hexylthiophene) from Silicon Nanocrystal Surfaces: Synthesis and Properties of a Functional Hybrid Material with Direct Interfacial Contact

Muhammad Amirul Islam, Tapas K. Purkait, Md Hosnay Mobarok, Ignaz M.D. Hoehlein, Regina Sinelnikov, Muhammad Iqbal, Doron Azulay, Isaac Balberg, Oded Millo, Bernhard Rieger, Jonathan G.C. Veinot*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Hybrid functional materials (HFMs) comprised of semiconductor nanoparticles and conjugated polymers offer the potential of synergetic photophysical properties. We have developed HFMs based upon silicon nanocrystals (SiNCs) and the conductive polymer poly(3-hexylthiophene) (SiNC@P3HT) by applying surface-initiated Kumada catalyst transfer polycondensation (SI-KCTP). One unique characteristic of the developed SiNC@P3HT is the formation of a direct covalent bonding between SiNCs and P3HT. The presented method for obtaining direct interfacial attachment, which is not accessible using other methods, may allow for the development of materials with efficient electronic communication at the donor–acceptor interfaces. Systematic characterization provides evidence of a core–shell structure, enhanced interfacial electron and/or energy transfer between the P3HT and SiNC components, as well as formation of a type-II heterostructure.

Original languageAmerican English
Pages (from-to)7393-7397
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number26
DOIs
StatePublished - 20 Jun 2016

Bibliographical note

Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • hybrid materials
  • interfaces
  • nanocrystals
  • poly(3-hexylthiophene)
  • silicon

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