Electroluminescence property of a novel dendritic polyfluorene derivative containing a triphenylamine group
Creators
- 1. State Key Laboratory for Artificial Microstructures and Mesoscopic Physics and Department of Physics, Peking University, 100871, People's Republic of (China)
- 2. State Key Laboratory for Artificial Microstructures and Mesoscopic Physics and Department of Physics, Peking University, 100871 (China)
- 3. School of Electronics and Information Engineering, Xian Jiaotong University, Xian, 710049 (China)
Description
A novel dendritic polyfluorene derivative containing triphenylamine, poly((9,9-dibutyl-2,7-diiodo-9H-fluorene)trisphenylamine) (PDFA) was synthesized by the Ni(0)-catalysed reaction of 9,9-dibutyl-2,7-diiodo-9H-fluorene and tris-(4-iodo-phenyl)-amine. PDFA has many advantages compared with polyfluorene (PF). It enhances the hole-injecting and transporting capabilities and the dendritic structure significantly, reduces aggregation and enhances the thermal stability. Single- and double-layer LED devices using PDFA showed a maximum luminescence intensity and quantum efficiency that was almost twice that of the device based on PF (poly(9,9-dibutyl)fluorene) and the emission colour was closer to standard blue. The experimental results indicated that the incorporation of the hole-transporting triphenylamine group into PF may provide a means of improving the thermal and electroluminescence characteristics of organic light-emitting diodes
Availability note (English)
Available online at http://stacks.iop.org/0022-3727/38/847/d5_6_010.pdf or at the Web site for the Journal of Physics. D, Applied Physics (ISSN 1361-6463) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0022-3727/38/847/d5_6_010.pdf; http://www.iop.org/;
- DOI
- 10.1088/0022-3727/38/6/010;
- PII
- S0022-3727(05)86755-5;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 38
- Journal Issue
- 6
- Journal Page Range
- p. 847-851
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36037027
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- AGGLOMERATION; AMINES; ELECTROLUMINESCENCE; FLUORENE; HOLES; LAYERS; LIGHT EMITTING DIODES; QUANTUM EFFICIENCY; STABILITY
- Descriptors DEC
- AROMATICS; CONDENSED AROMATICS; EFFICIENCY; EMISSION; HYDROCARBONS; LUMINESCENCE; ORGANIC COMPOUNDS; PHOTON EMISSION; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES