Photophysical, amplified spontaneous emission and charge transport properties of oligofluorene derivatives in thin films

E. Y. Choi, L. Mazur, L. Mager, M. Gwon, D. Pitrat, J. C. Mulatier, C. Monnereau, A. Fort, A. J. Attias, K. Dorkenoo, J. E. Kwon, Y. Xiao, K. Matczyszyn, M. Samoc, D. W. Kim, A. Nakao, B. Heinrich, D. Hashizume, M. Uchiyama, S. Y. Park & 6 others Fabrice Dominique Mathevet, T. Aoyama, C. Andraud, J. W. Wu, A. Barsella, Jean Charles Maurice Ribierre

Research output: Contribution to journalArticle

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Abstract

We investigate the photophysical and amplified spontaneous emission properties of a series of monodisperse solution-processable oligofluorenes functionalized with hexyl chains at the C9 position of each fluorene unit. Thin films of these oligofluorenes are then used in organic field-effect transistors and their charge transport properties are examined. We have particularly focused our attention on the influence of oligofluorene length on the absorption and steady-state fluorescence spectra, on the HOMO/LUMO energy levels, on the photoluminescence lifetime and quantum yield as well as on the amplified spontaneous emission properties and the charge carrier mobilities. Differential scanning calorimetry and X-ray diffraction measurements demonstrate that, among all oligofluorene derivatives used in this study, only the structure and morphology of the pentafluorene film is significantly modified by a thermal treatment above the glass transition temperature, resulting in a 9 nm blue-shift of the fluorescence spectrum without significant changes in the photoluminescence quantum yield and in the amplified spontaneous emission threshold. In parallel, hole field-effect mobility is significantly increased from 8.6 × 10-7 to 3.8 × 10-5 cm2 V-1 s-1 upon thermal treatment, due to an increase of crystallinity. This study provides useful insights into the morphological control of oligofluorene thin films and how it affects their photophysical and charge transport properties. Moreover, we provide evidence that, because of the low threshold, the tunability of the amplified spontaneous emission and the photostability of the films, these oligofluorenes are promising candidates for organic solid-state laser applications.

Original languageEnglish
Pages (from-to)16941-16956
Number of pages16
JournalPhysical Chemistry Chemical Physics
Volume16
Issue number32
DOIs
Publication statusPublished - Jul 23 2014

Fingerprint

Spontaneous emission
Transport properties
spontaneous emission
Charge transfer
transport properties
Derivatives
Thin films
Quantum yield
thin films
Photoluminescence
Fluorescence
Heat treatment
organic lasers
photoluminescence
Organic field effect transistors
organic solids
Laser applications
fluorescence
thresholds
laser applications

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Choi, E. Y., Mazur, L., Mager, L., Gwon, M., Pitrat, D., Mulatier, J. C., ... Ribierre, J. C. M. (2014). Photophysical, amplified spontaneous emission and charge transport properties of oligofluorene derivatives in thin films. Physical Chemistry Chemical Physics, 16(32), 16941-16956. https://doi.org/10.1039/c4cp01134a

Photophysical, amplified spontaneous emission and charge transport properties of oligofluorene derivatives in thin films. / Choi, E. Y.; Mazur, L.; Mager, L.; Gwon, M.; Pitrat, D.; Mulatier, J. C.; Monnereau, C.; Fort, A.; Attias, A. J.; Dorkenoo, K.; Kwon, J. E.; Xiao, Y.; Matczyszyn, K.; Samoc, M.; Kim, D. W.; Nakao, A.; Heinrich, B.; Hashizume, D.; Uchiyama, M.; Park, S. Y.; Mathevet, Fabrice Dominique; Aoyama, T.; Andraud, C.; Wu, J. W.; Barsella, A.; Ribierre, Jean Charles Maurice.

In: Physical Chemistry Chemical Physics, Vol. 16, No. 32, 23.07.2014, p. 16941-16956.

Research output: Contribution to journalArticle

Choi, EY, Mazur, L, Mager, L, Gwon, M, Pitrat, D, Mulatier, JC, Monnereau, C, Fort, A, Attias, AJ, Dorkenoo, K, Kwon, JE, Xiao, Y, Matczyszyn, K, Samoc, M, Kim, DW, Nakao, A, Heinrich, B, Hashizume, D, Uchiyama, M, Park, SY, Mathevet, FD, Aoyama, T, Andraud, C, Wu, JW, Barsella, A & Ribierre, JCM 2014, 'Photophysical, amplified spontaneous emission and charge transport properties of oligofluorene derivatives in thin films', Physical Chemistry Chemical Physics, vol. 16, no. 32, pp. 16941-16956. https://doi.org/10.1039/c4cp01134a
Choi, E. Y. ; Mazur, L. ; Mager, L. ; Gwon, M. ; Pitrat, D. ; Mulatier, J. C. ; Monnereau, C. ; Fort, A. ; Attias, A. J. ; Dorkenoo, K. ; Kwon, J. E. ; Xiao, Y. ; Matczyszyn, K. ; Samoc, M. ; Kim, D. W. ; Nakao, A. ; Heinrich, B. ; Hashizume, D. ; Uchiyama, M. ; Park, S. Y. ; Mathevet, Fabrice Dominique ; Aoyama, T. ; Andraud, C. ; Wu, J. W. ; Barsella, A. ; Ribierre, Jean Charles Maurice. / Photophysical, amplified spontaneous emission and charge transport properties of oligofluorene derivatives in thin films. In: Physical Chemistry Chemical Physics. 2014 ; Vol. 16, No. 32. pp. 16941-16956.
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AU - Choi, E. Y.

AU - Mazur, L.

AU - Mager, L.

AU - Gwon, M.

AU - Pitrat, D.

AU - Mulatier, J. C.

AU - Monnereau, C.

AU - Fort, A.

AU - Attias, A. J.

AU - Dorkenoo, K.

AU - Kwon, J. E.

AU - Xiao, Y.

AU - Matczyszyn, K.

AU - Samoc, M.

AU - Kim, D. W.

AU - Nakao, A.

AU - Heinrich, B.

AU - Hashizume, D.

AU - Uchiyama, M.

AU - Park, S. Y.

AU - Mathevet, Fabrice Dominique

AU - Aoyama, T.

AU - Andraud, C.

AU - Wu, J. W.

AU - Barsella, A.

AU - Ribierre, Jean Charles Maurice

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