An organic semiconductor laser based on star-shaped truxene-core oligomers for refractive index sensing

A. -M. Haughey, B. Guilhabert, A. L. Kanibolotsky, P. J. Skabara, G. A. Burley, M. D. Dawson, N. Laurand

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The sensing capabilities of an all-organic semiconductor distributed feedback laser based on star-shaped truxene-core molecules are described. Two assays are presented as a proof-of-principle demonstration. In the first, concentration changes in the range of 5-60% (v/v) glycerol solution in water were measured with a bulk detection sensitivity of 21 nm per refractive index unit. Secondly, layer-by-layer adsorption of polyelectrolytes to the laser surface, up to a thickness of ≈45 nm, was measured. The experimental results from both assays are compared to, and shown to agree with, a theoretical model. Organic semiconductor lasers of this type have a number of attractions including ease of large-scale fabrication, incorporation into existing assay equipment and no rigid optical alignment constraints for excitation and collection of emission, which makes them well-suited to sensing applications. Therefore, it is expected that this technology will be useful in biosensing applications where label-free samples are investigated.
LanguageEnglish
Pages132-139
Number of pages8
JournalSensors and Actuators B: Chemical
Volume185
DOIs
Publication statusPublished - Aug 2013

Fingerprint

organic lasers
Semiconducting organic compounds
organic semiconductors
oligomers
Oligomers
Stars
Semiconductor lasers
Assays
Refractive index
semiconductor lasers
refractivity
stars
Distributed feedback lasers
distributed feedback lasers
glycerols
Polyelectrolytes
Glycerol
attraction
Labels
Demonstrations

Keywords

  • thin-films
  • sensitivity
  • polymers
  • laser
  • biosensors
  • semiconductor
  • plastic
  • distributed-feedback
  • neutron
  • truxene
  • sensor
  • integrated optics
  • organic
  • organic semiconductor laser
  • star-shaped truxene-core oligomers
  • refractive index sensing

Cite this

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title = "An organic semiconductor laser based on star-shaped truxene-core oligomers for refractive index sensing",
abstract = "The sensing capabilities of an all-organic semiconductor distributed feedback laser based on star-shaped truxene-core molecules are described. Two assays are presented as a proof-of-principle demonstration. In the first, concentration changes in the range of 5-60{\%} (v/v) glycerol solution in water were measured with a bulk detection sensitivity of 21 nm per refractive index unit. Secondly, layer-by-layer adsorption of polyelectrolytes to the laser surface, up to a thickness of ≈45 nm, was measured. The experimental results from both assays are compared to, and shown to agree with, a theoretical model. Organic semiconductor lasers of this type have a number of attractions including ease of large-scale fabrication, incorporation into existing assay equipment and no rigid optical alignment constraints for excitation and collection of emission, which makes them well-suited to sensing applications. Therefore, it is expected that this technology will be useful in biosensing applications where label-free samples are investigated.",
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An organic semiconductor laser based on star-shaped truxene-core oligomers for refractive index sensing. / Haughey, A. -M.; Guilhabert, B.; Kanibolotsky, A. L.; Skabara, P. J.; Burley, G. A.; Dawson, M. D.; Laurand, N.

In: Sensors and Actuators B: Chemical, Vol. 185, 08.2013, p. 132-139.

Research output: Contribution to journalArticle

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AU - Guilhabert, B.

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AU - Burley, G. A.

AU - Dawson, M. D.

AU - Laurand, N.

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