Skip to content

Research at St Andrews

Sensitive Explosive Vapor Detection with Polyfluorene Lasers

Research output: Contribution to journalArticle

DOI

Abstract

Distributed feedback organic semiconductor lasers based on polyfluorene are shown to be suitable for use as chemical sensors for the detection of nitroaromatic-based explosive vapors. The laser threshold is increased by a factor of 1.8 and the slope efficiency is reduced by a factor of 3 after exposure to the vapor. The sensing efficiency depends strongly on the excitation energy with a maximum efficiency of 85%. The temporal dynamics of the laser response to the analyte have been investigated. The laser emission falls to 60% of its initial value in 46s. A model is developed to offer some insight into the diffusion of the vapor molecules inside the polymer layer.

Close

Details

Original languageEnglish
Pages (from-to)2093-2097
Number of pages5
JournalAdvanced Functional Materials
Volume20
Issue number13
DOIs
StatePublished - 9 Jul 2010

    Research areas

  • DISTRIBUTED-FEEDBACK LASER, CASE-II DIFFUSION, CONJUGATED POLYMERS, CONDUCTING POLYMER, OPTICAL GAIN, SPECTROSCOPY, SENSORS, FILMS, DYE

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Polymer colour converter with very high modulation bandwidth for visible light communications

    Vithanage, D. A., Kanibolotsky, A. L., Rajbhandari, S., Manousiadis, P. P., Sajjad, M. T., Chun, H., Faulkner, G., O'Brien, D. C., Skabara, P. J., Samuel, I. D. W. & Turnbull, G. A. 21 Sep 2017 In : Journal of Materials Chemistry C. 5, 35, p. 8916-8920 5 p.

    Research output: Contribution to journalArticle

  2. Green perovskite distributed feedback lasers

    Harwell, J. R., Whitworth, G. L., Turnbull, G. A. & Samuel, I. D. W. 15 Sep 2017 In : Scientific Reports. 7, 8 p., 11727

    Research output: Contribution to journalArticle

  3. Intermolecular states in organic dye dispersions: excimers vs aggregates

    Musser, A. J., Rajendran, S. K., Georgiou, K., Gai, L., Grant, R. T., Shen, Z., Cavazzini, M., Ruseckas, A., Turnbull, G. A., Samuel, I. D. W., Clark, J. & Lidzey, D. G. 5 Jul 2017 In : Journal of Materials Chemistry C. 10 p.

    Research output: Contribution to journalArticle

  4. Single cell induced optical confinement in biological lasers

    Karl, M., Dietrich, C. P., Schubert, M., Samuel, I. D. W., Turnbull, G. A. & Gather, M. C. 1 Mar 2017 In : Journal of Physics D : Applied Physics. 50, 8, 9 p., 084005

    Research output: Contribution to journalArticle

Related by journal

  1. Ultrafast switching in avalanche-driven ferroelectrics by supersonic kink movements

    Salje, E. K. H., Wang, X., Ding, X. & Scott, J. F. 6 Jun 2017 In : Advanced Functional Materials. 27, 21, 6 p., 1700367

    Research output: Contribution to journalArticle

  2. Nano-Domain Pinning in Ferroelastic-Ferroelectrics by Extended Structural Defects

    Ivry, Y., Durkan, C., Chu, D. & Scott, J. F. 17 Sep 2014 In : Advanced Functional Materials. 24, 35, p. 5567-5574 8 p.

    Research output: Contribution to journalArticle

  3. Studies of the Room-Temperature Multiferroic Pb(Fe0.5Ta0.5)0.4(Zr0.53Ti0.47)0.6O3: Resonant Ultrasound Spectroscopy, Dielectric, and Magnetic Phenomena

    Schiemer, J., Carpenter, M. A., Evans, D. M., Gregg, J. M., Schilling, A., Arredondo, M., Alexe, M., Sanchez, D., Ortega, N., Katiyar, R. S., Echizen, M., Colliver, E., Dutton, S. & Scott, J. F. May 2014 In : Advanced Functional Materials. 24, 20, p. 2993-3002 10 p.

    Research output: Contribution to journalArticle

  4. We Want Our Photons Back: Simple Nanostructures for White Organic Light-Emitting Diode Outcoupling

    Kim, Y. H., Lee, J., Kim, W. M., Fuchs, C., Hofmann, S., Chang, H-W., Gather, M. C., Mueller-Meskamp, L. & Leo, K. May 2014 In : Advanced Functional Materials. 24, 17, p. 2553-2559 7 p.

    Research output: Contribution to journalArticle

  5. Influence of cavity thickness and emitter orientation on the efficiency roll-off of phosphorescent organic light-emitting diodes

    Murawski, C., Liehm, P., Leo, K. & Gather, M. C. 26 Feb 2014 In : Advanced Functional Materials. 24, 8, p. 1117-1124

    Research output: Contribution to journalArticle

Related by journal

  1. Advanced Functional Materials (Journal)

    Cole-Hamilton, D. J. (Editor)
    19911999

    Activity: Publication peer-review and editorial workEditor of research journal

ID: 5263261