Quantitative nanoscale surface voltage measurement on organic semiconductor blends

Alexandre Cuenat* (Corresponding Author), Andrés Mũiz-Piniella, Miguel Mũoz-Rojo, Wing C. Tsoi, Craig E. Murphy

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

We report on the validation of a method based on Kelvin probe force microscopy (KPFM) able to measure the different phases and the relative work function of polymer blend heterojunctions at the nanoscale. The method does not necessitate complex ultra-high vacuum setup. The quantitative information that can be extracted from the topography and the Kelvin probe measurements is critically analysed. Surface voltage difference can be observed at the nanoscale on poly(3-hexyl-thiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) blends and dependence on the annealing condition and the regio-regularity of P3HT is observed.

Original languageEnglish
Article number045703
JournalNanotechnology
Volume23
Issue number4
DOIs
Publication statusPublished - 3 Feb 2012
Externally publishedYes

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