Enhancement of the hole transport in poly(p-phenylene vinylene) based light-emitting diodes
| Autor: | Tanase, C, Wildeman, J, Blom, PWM, Heremans, PL, Muccini, M, Hofstraat, H |
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| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Electron mobility Materials science business.industry Computer Science::Information Retrieval polyp-phenylene vinylene) Poly(p-phenylene vinylene) Heterojunction hole mobility Polymer Electroluminescence Molecular physics law.invention charge transport chemistry.chemical_compound chemistry law Electric field CHARGE-TRANSPORT ELECTROLUMINESCENCE Optoelectronics business CONJUGATED POLYMERS Diode Light-emitting diode |
| Zdroj: | ORGANIC OPTOELECTRONICS AND PHOTONICS, 351-355 STARTPAGE=351;ENDPAGE=355;TITLE=ORGANIC OPTOELECTRONICS AND PHOTONICS |
| Popis: | The hole transport in various polyp-phenylene vinylene (PPV) derivatives has been investigated in hole-only diodes as function of temperature T and applied electric field E. A difference of three decades has been found in the hole mobility between a random copolymer with asymmetric sidechains and a PPV-derivative with symmetric sidechains. The temperature dependence of the hole mobility has been analysed within the correlated Gaussian disorder model. The large differences in the mobility values of these PPV derivatives are governed by a strong decrease of the energetic disorder. The high mobility PPV-based polymers are interesting candidates for being used as hole transport layers in heterojunction light-emitting diodes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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