Hot electron-induced electrochemiluminescence at polyetherimide-carbon black-based electrodes

Kalle Salminen*, Päivi Grönroos, Leena Sisko Johansson, Joseph Campbell, Sakari Kulmala

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Various luminophores produce strong electrogenerated chemiluminescence during cathodic pulse polarization of the present insulating film-covered carbon paste electrodes in fully aqueous solutions. First electrodes made of a commercial conductive carbon paste were successfully utilized as working electrodes and their surface was characterized by ESCA. Then custom in-laboratory made improved composite electrodes were manufactured from the same insulating polymer and conducting carbon black particles. The relationship between the amount of carbon present on the composite electrode, in the bulk and on the surface, and the intensity of electrogenerated chemiluminescence was studied further. The overall performance of these composite electrodes makes them viable low-cost replacements for metal/insulator type electrodes such as oxide-coated silicon electrodes.

Original languageEnglish
Pages (from-to)185-191
Number of pages7
JournalElectrochimica Acta
Volume237
DOIs
Publication statusPublished - 20 May 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Bioaffinity assays
  • Carbon paste electrodes
  • Electrochemiluminescence
  • Hot electron electrochemistry
  • Lanthanide luminescence

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