| ATOMIC AND MOLECULAR PHYSICS |
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Triplet Exciton Transition Induced Highly Efficient Fluorescent Channel in Organic Electroluminescence |
| CHEN Ren-Ai**, SUN Xin |
Department of Physics and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433
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| Cite this article: |
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CHEN Ren-Ai, SUN Xin 2015 Chin. Phys. Lett. 32 083601 |
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Abstract The injection of charge carriers from the electron/hole injection or transport layers in polymer light-emitting diodes potentially increases the device efficiency not by changing of charge intensity but by lattice distortion variation and quasi-particle interactions. From the low-dimensional condensed matter physics perspective, a valid mechanism is proposed to bring a type of novel channels that, under a proper external electric field, transition-forbidden triplet excitons are transformed and partially charged by charge carriers (polarons/bipolarons), thus are able to emit light and to enhance fluorescence greatly.
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Received: 03 June 2015
Published: 02 September 2015
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| PACS: |
36.20.-r
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(Macromolecules and polymer molecules)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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33.50.Dq
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(Fluorescence and phosphorescence spectra)
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