Organic semiconductor laser biosensor: design and performance discussion

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6 Citations (Scopus)

Abstract

Organic distributed feedback lasers can detect nanoscale materials and are therefore an attractive sens- ing platform for biological and medical applications. In this paper, we present a model for optimizing such laser sensors and discuss the advantages of using an organic semiconductor as the laser material in comparison to dyes in a matrix. The structure of the sensor and its operation principle are described. Bulk and surface sensing exper- imental data using oligofluorene truxene macromolecules and a conjugated polymer for the gain region is shown to correspond to modeled values and is used to assess the biosensing attributes of the sensor. A comparison between organic semiconductor and dye-doped laser sensitivity is made and analyzed theoretically. Finally, experimental and theoretical specific biosensing data is provided and methods for improving sensitivity are discussed.
LanguageEnglish
Article number1300109
Number of pages9
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume22
Issue number1
Early online date12 Aug 2015
DOIs
Publication statusPublished - 31 Jan 2016

Fingerprint

organic lasers
Semiconducting organic compounds
organic semiconductors
bioinstrumentation
Biosensors
Semiconductor lasers
semiconductor lasers
Lasers
sensors
Sensors
Organic lasers
Dyes
dyes
Distributed feedback lasers
laser materials
sensitivity
Conjugated polymers
distributed feedback lasers
Medical applications
Macromolecules

Keywords

  • distributed feedback devices
  • biophotonics
  • organic semiconductors

Cite this

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abstract = "Organic distributed feedback lasers can detect nanoscale materials and are therefore an attractive sens- ing platform for biological and medical applications. In this paper, we present a model for optimizing such laser sensors and discuss the advantages of using an organic semiconductor as the laser material in comparison to dyes in a matrix. The structure of the sensor and its operation principle are described. Bulk and surface sensing exper- imental data using oligofluorene truxene macromolecules and a conjugated polymer for the gain region is shown to correspond to modeled values and is used to assess the biosensing attributes of the sensor. A comparison between organic semiconductor and dye-doped laser sensitivity is made and analyzed theoretically. Finally, experimental and theoretical specific biosensing data is provided and methods for improving sensitivity are discussed.",
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