| Publication Type |
Journal Article |
| School or College |
College of Science |
| Department |
Physics |
| Creator |
Lupton, John Mark |
| Title |
Frequency up-conversion as a temperature probe of organic opto-electronic devices |
| Date |
2002 |
| Description |
Frequency up-conversion is demonstrated in a polyfluorene-based conjugated polymer. Up-converted emission is observed upon excitation to the red of the 0-0 luminescence band. The emission intensity depends strongly on temperature and provides an accurate probe of the operating temperature of organic light-emitting diodes. Temperature rises of up to 30 K are observed at standard operating current densities of 225 mA/cm2. Due to the low thermal conductivity and heat capacity of the polymer film, the temperature of the film is found to rise slowly on a time-scale of seconds. Upon termination of the current, the temperature decreases again on a time-scale of minutes. |
| Type |
Text |
| Publisher |
American Institute of Physics (AIP) |
| Journal Title |
Applied Physics Letters |
| Volume |
80 |
| Issue |
2 |
| First Page |
186 |
| Last Page |
188 |
| DOI |
10.1063/1.1432766 |
| citatation_issn |
36951 |
| Subject |
Frequency up-conversion; Organic opto-electronic devices |
| Subject LCSH |
Conjugated polymers -- Optical properties; Polyfluorenes -- Optical properties; Optoelectronics |
| Language |
eng |
| Bibliographic Citation |
Lupton, J. M. (2002). Frequency up-conversion as a temperature probe of organic opto-electronic devices. Applied Physics Letters, 80(2), 186-8. |
| Rights Management |
(c)American Institute of Physics. The following article appeared in Lupton, J. M., Applied Physics Letters, 80(2), 2002 and may be found at http://dx.doi.org/10.1063/1.1432766 |
| Format Medium |
application/pdf |
| Format Extent |
63,488 bytes |
| Identifier |
ir-main,11911 |
| ARK |
ark:/87278/s67p9ghh |
| Setname |
ir_uspace |
| ID |
702404 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s67p9ghh |
