Fine control of photoluminescence and optical waveguiding characteristics of organic rubrene nanorods using focused electron-beam irradiation

Hyeon Jung Park, Min Su Kim, Jeongyong Kim, Jinsoo Joo

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We demonstrate the fine control of the nanoscale photoluminescence (PL) and optical waveguiding characteristics of light-emitting organic rubrene nanorods (NRs) through focused electron-beam (E-beam) irradiation. Nanoscale laser confocal microscope PL intensity and spectra of the focused E-beam-treated compartments of the rubrene NR drastically varied with E-beam dose, and yellow-white light emission from those compartments with a specific E-beam dose was observed. In optical waveguiding experiments, the propagation characteristics of optical signals along the single NR were dependent on the crystalline structure of the rubrene. For the E-beam treated NR, the waveguiding PL signals along the crystalline a-axis had relatively higher output, indicating the major axis for the optical energy transfer. Additionally, the waveguiding characteristics such as decay constant along the crystalline b-axis and c-axis of the NR considerably varied at the boundary of the E-beam treatment.

Original languageEnglish
Pages (from-to)30179-30186
Number of pages8
JournalJournal of Physical Chemistry C
Volume118
Issue number51
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Nanorods
nanorods
Electron beams
Photoluminescence
Irradiation
electron beams
photoluminescence
irradiation
compartments
Crystalline materials
dosage
Light emission
Energy transfer
light emission
optical communication
rubrene
Microscopes
energy transfer
microscopes
propagation

ASJC Scopus subject areas

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

Cite this

Fine control of photoluminescence and optical waveguiding characteristics of organic rubrene nanorods using focused electron-beam irradiation. / Park, Hyeon Jung; Kim, Min Su; Kim, Jeongyong; Joo, Jinsoo.

In: Journal of Physical Chemistry C, Vol. 118, No. 51, 01.01.2014, p. 30179-30186.

Research output: Contribution to journalArticle

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