Photoluminescence from donor-acceptor molecular systems via long distance energy transfer mediated by surface plasmons

Takayuki Shimada, Satoshi Tomita, Shu Hotta, Shinji Hayashi, Hisao Yanagi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We have studied the energy transfer from p-sexiphenyl (p-6P) to 5,5′-bis(4-biphenylyl)-2,2′-bithiophene (BP2T) mediated by surface plasmons (SPs) on a thin silver layer sandwiched between two MgF2 spacers. The SP-mediated fluorescence of the BP2T acceptor is observed at the donor-acceptor distance beyond 200 nm, which is much longer than the Förster distance. The photoluminescence of BP2T is maximized at silver thickness of roughly 40 nm, where the silver layer is transformed from segregated nanoparticles into a continuous film, at an MgF2 thickness of 10.5 to 52.5 nm.

Original languageEnglish
Article number042001
JournalJapanese journal of applied physics
Volume48
Issue number4
DOIs
Publication statusPublished - 2009 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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