Enhanced photocurrent generation by förster resonance energy transfer between phospholipid-assembled conjugated oligoelectrolytes and nile red

Yebin Lee, Ilseung Yang, Jung Eun Lee, Sunjin Hwang, Jong Woo Lee, Seung Soo Um, Thanh Luan Nguyen, Pil J. Yoo, Han Young Woo, Juhyun Park, Seong Keun Kim

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28 Citations (Scopus)

Abstract

We show that Förster resonance energy transfer (FRET) between a conjugated oligoelectrolyte based on distyrylstilbene (DSSN+) and Nile red can enhance photocurrent generation when the photoagents are assembled vertically on gold electrodes. DSSN+ and Nile red intercalated into phospholipid membranes of unilamellar vesicles were found to form a useful FRET system because of the solvatochromic properties of DSSN+, and the accompanying photophysical properties were suitable for FRET with Nile red. As a result, a FRET efficiency of 93-94% was achieved, as shown by steady-state and time-resolved spectra in vesicle solutions. When Nile red was tethered in a self-assembled monolayer of 11-mercaptoundecanoic acid (MUA) on gold electrodes and phospholipid-assembled DSSN+ was sequentially organized on the MUA layer, the anodic photocurrent increased notably, reaching about 815 nA/cm2 by virtue of FRET between the vertically aligned dyes.

Original languageEnglish
Pages (from-to)3298-3307
Number of pages10
JournalJournal of Physical Chemistry C
Volume117
Issue number7
DOIs
Publication statusPublished - 2013 Feb 21

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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    Lee, Y., Yang, I., Lee, J. E., Hwang, S., Lee, J. W., Um, S. S., Nguyen, T. L., Yoo, P. J., Woo, H. Y., Park, J., & Kim, S. K. (2013). Enhanced photocurrent generation by förster resonance energy transfer between phospholipid-assembled conjugated oligoelectrolytes and nile red. Journal of Physical Chemistry C, 117(7), 3298-3307. https://doi.org/10.1021/jp3117193