只用于動物實驗研究等 General Information | CAS number | 138184-36-8 | | Chemical formula | (C18H28O2)n | | Molecular weight | Mw = 372,942, Mn = 72,485 (PDI = 5.15) | | Absorption | λmax 493 nm (toluene) | | Fluorescence | λem 554 nm (toluene) | | HOMO/LUMO | HOMO = 5.3 eV, LUMO = 3.0 eV | | Full name | Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] | | Solubility | Toluene or chlorobenzene | | Classification / Family | PPV derivatives, Hole-injection layer materials, Hole transport layer materials; Polymer light-emitting diodes (OLEDs), Organic photovoltaics (OPVs), Organic electronics |
Product Details| Purity | >99% | | Thermogravimetric Analysis (TGA) | 371 °C (5% weight loss) | | Colour | Red fibers |
Chemical Structure
Chemical Structure of MEH-PPV, Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]; CAS No. 138184-36-8; Chemical Formula (C18H28O2)n.
ApplicationsPoly[2-methoxy-5-(2’-ethylhexyloxy)-1,4- phenylene vinylene] (MEH-PPV) is a PPV derivative that is particularly favourable for device fabrication due to its great solubility in most of the common organic solvents owing to its asymmetric side chains. To date, MEH-PPV is possibly one of the most celebrated and studied polymer semiconductors, recognising its applications in OPV, OFETs, polymer light-emitting diodes (PLED) and perovskite solar cells. The first example of a polymer solar cell with a convincing understanding of the physics and chemistry involved was the bilayer heterojunction cell utilising the soluble polymer MEH-PPV and the Buckminsterfullerene C60 where a power conversion efficiency of 0.04% was obtained using monochromatic light.[1, 2] | Device structure | ITO/Al/PFNBrBTDZ05*/MEH-PPV/Au [3] | | Colour | Orange-Red  | | Max. EQE | 2.71% | | Max. Current Efficiency | 1.6 cd/A |
| Device structure | ITO/PEDOT:PSS/PPF-3,7SO10* (100 wt%):P-PPV (0.8 wt%): MEH–PPV (0.5 wt%)/Ba/Al [4] | | Colour | White  | | Max. EQE | 6.9% | | Max. Current Efficiency | 14.0 cd/A | | Max. Power Efficiency | 7.6 lm W−1 |
| Device structure | ITO/CFx/MEH-PPV/Ca/Al, ca [5] | | Colour | Orange-Red | | Max. Luminance | 24,000 cd/m2 | | Max. Current Efficiency | 5.1 cd/A |
| Device structure | ITO /PEDOT:PSS/PFO:0.25 wt% MEH-PPV/Cs2CO3/Al [6] | | Colour | White | | Max. EQE | 6% | | Max. Current Efficiency | 11.2 cd/A | | Max. Power Efficiency | 16 lm W−1 |
| Device structure | ITO/PEDOT/PVK:polyTPD (1:1 wt%) 50 nm/PFO:MEH-PPV*(95.5:0.5 wt%) 70 nm/Ca/Al [7] | | Colour | White | | Max. Luminance | ~ 5,000 cd/m2 | | Max. Current Efficiency | 3.15 cd/A |
| Device structure | ITO/PEDOT (30 nm)/ poly-TPD(40 nm)/ DNA-CTMA*(20 nm)/ PFO:MEH-PPV (70 nm)/Cs2CO3(1 – 2 nm)/Al [8] | | Colour | White | | Max. Luminance | 10,500 cd/m2 | | Max. Current Efficiency | 10 cd/A |
| Device structure | ITO/MEH-PPV/TPBI doped by 10 wt % Cs2CO3/Cs2CO3/Ca/Al [9] | | Colour | Orange-Red | | Max. EQE | 2.2% | | Max. Luminance | 62,000 cd/m2 | | Max. Current Efficiency | 5.7 cd/A |
*For chemical structure informations please refer to the cited references. Characterisation (HPLC)![MEH-PPV, Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene], 138184-36-8](https://cdn.shopify.com/s/files/1/0823/0287/files/HPLC-mehppv_large.jpg?8855999861121684693)
HPLC trace of MEH-PPV, Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]. Literature and Reviews- Photoinduced electron-transfer from a conducting polymer to buckminsterfullerene, N. Sariciftci et al., Science, 258, 1474–1476 (1992).
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- High-efficiency polymer light-emitting diodes based on poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene] with plasma-polymerized CHF3-modified indium tin oxide as an anode, C-C. Hsiao et al., Appl. Phys. Lett. 88, 033512 (2006); http://dx.doi.org/10.1063/1.2165192.
- Achieving High-Efficiency Polymer White-Light-Emitting Devices, J. Huang et al., Adv. Mater., 18, 114–117 (2006); DOI: 10.1002/adma.20050110.
- Enhanced performance of white polymer light-emitting diodes using polymer blends as hole-transporting layers, Q. Sun et al., Appl. Phys. Lett. 89, 153501 (2006); http://dx.doi.org/10.1063/1.2360248.
- Multilayer white polymer light-emitting diodes with deoxyribonucleic acid-cetyltrimetylammonium complex as a hole-transporting/electronblocking, Q.Sun et al., Appl. Phys. Lett. 92, 251108 (2008); doi: 10.1063/1.2948864 .
- Design of hole blocking layer with electron transport channels for high performance polymer light-emitting diode, C-C. Hsiao et al., Adv. Mater., 20, 1982–1988 (2008); DOI:10.1002/adma.200702150.
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