S Sinha
Electrophosphorescence And Delayed Electroluminescence From Pristine Polyfluorene Thin-film Devices At Low Temperature
Sinha, S; Rothe, C; Guntner, R; Scherf, U; Monkman, AP
Authors
C Rothe
R Guntner
U Scherf
AP Monkman
Abstract
Intrinsic long-lived electrophosphorescence and delayed electroluminescence from a conjugated polymer (polyfluorene) thin film is observed for the first time at low temperature. From bias offset voltage dependent measurements, it is concluded that the delayed fluorescence is generated via triplet-triplet annihilation. A fast and efficient triplet exciton quenching by charge carriers is found to occur in the active polymer layer of the working devices.
Citation
Sinha, S., Rothe, C., Guntner, R., Scherf, U., & Monkman, A. (2003). Electrophosphorescence And Delayed Electroluminescence From Pristine Polyfluorene Thin-film Devices At Low Temperature. Physical Review Letters, 90(12), https://doi.org/10.1103/physrevlett.90.127402
Journal Article Type | Article |
---|---|
Publication Date | 2003-03 |
Deposit Date | Nov 27, 2006 |
Publicly Available Date | Mar 28, 2024 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Electronic ISSN | 1079-7114 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 90 |
Issue | 12 |
DOI | https://doi.org/10.1103/physrevlett.90.127402 |
Keywords | Light-emitting diodes, Pi-conjugated polymers, Energy-transfer, Triplet energy, Singlet, Performance, Morphology, Dopants. |
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