Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Vardeny, Zeev Valentine |
Other Author |
Shkunov, M. N.; Osterbacka, R.; Fujii, A.; Yoshino, K. |
Title |
Laser action in polydialkylfluorene films: influence of low-temperature thermal treatment |
Date |
1999 |
Description |
We have used a variety of optical probes to investigate the changes occurring upon low-temperature thermal treatment to the emissive properties of dialkyl substituted polyfluorene thin films. We found that the low-temperature-driven morphological changes involving aggregates formation, which are observed in the absorption and photoluminescence spectra at low excitation intensities, give rise at high excitation intensities to laser action in the blue spectral range. In some cases, switching We have used a variety of optical probes to investigate the changes occurring upon low-temperature thermal treatment to the emissive properties of dialkyl substituted polyfluorene thin films. We found that the low-temperature-driven morphological changes involving aggregates formation, which are observed in the absorption and photoluminescence spectra at low excitation intensities, give rise at high excitation intensities to laser action in the blue spectral range. In some cases, switching between two stimulated emission bands was also observed. between two stimulated emission bands was also observed. |
Type |
Text |
Publisher |
American Institute of Physics (AIP) |
Journal Title |
Applied Physics Letters |
Volume |
74 |
Issue |
12 |
First Page |
1648 |
Last Page |
1650 |
DOI |
10.1063/1.123642 |
citatation_issn |
36951 |
Subject |
Laser action; Polydialkylfluorene films; pi-conjugated polymers; Thermal treatment |
Subject LCSH |
Thin films -- Optical properties |
Language |
eng |
Bibliographic Citation |
Shkunov, M. N., Osterbacka, R., Fujii, A., Yoshino, K., & Vardeny, Z. V. (1999). Laser action in polydialkylfluorene films: influence of low-temperature thermal treatment. Applied Physics Letters, 74(12), 1648-50. |
Rights Management |
(c)American Institute of Physics. The following article appeared in Shkunov, M. N., Osterbacka, R., Fujii, A., Yoshino, K., & Vardeny, Z. V., Applied Physics Letters, 74(12), 1999 and may be found at http://dx.doi.org/10.1063/1.123642 |
Format Medium |
application/pdf |
Identifier |
ir-main,9912 |
ARK |
ark:/87278/s6m90t6t |
Setname |
ir_uspace |
ID |
706369 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6m90t6t |