541443

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]

average M_n 40,000-70,000

• Synonym(s): MEH-PPV
• Linear Formula: (C₁₈H₂₈O₂)_n
• CAS Number: 138184-36-8
• MDL number: MFCD03093943
• UNSPSC Code: 12352103
• NACRES: NA.23

Properties

• description: Band gap: 2.3 eV
• Quality Level: 100
• mol wt: average M_n 40,000-70,000
• fluorescence: λ_ex 493 nm; λ_em 554 nm in toluene
• Orbital energy: HOMO -5.3 eV ; LUMO -3 eV
• OLED Device Performance: ITO/PEDOT:PSS/MEH-PPV/Al;
  • Color: orange-red
  • Max. Luminance: 220 Cd/m²
  • Max. EQE: 0.3 %
  • Turn-On Voltage: 3.8 V
  ; ITO/PEDOT:PSS/MEH-PPV/PBO/Al;
  • Color: orange-red
  • Max. Luminance: 970 Cd/m²
  • Max. EQE: 1.9 %
  • Turn-On Voltage: 2.9 V
  ; ITO/PEDOT:PSS/MEH-PPV/PBZT/Al;
  • Color: orange-red
  • Max. Luminance: 1400 Cd/m²
  • Max. EQE: 2.5 %
  • Turn-On Voltage: 2.8 V
• OPV Device Performance: ITO/MEH-PPV/BBL/Al;
  • Short-circuit current density (J_sc): 1.98 mA/cm²
  • Open-circuit voltage (V_oc): 0.93 V
  • Fill Factor (FF): 0.47
  • Power Conversion Efficiency (PCE): 1.1 %
  ; ITO/MEH-PPV:PC61BM(1:4)/Ca;
  • Short-circuit current density (J_sc): 2 mA/cm²
  • Open-circuit voltage (V_oc): 0.8 V
  • Fill Factor (FF): 0.25
  • Power Conversion Efficiency (PCE): 1.5 %
• Mw/Mn: ~6
• storage temp.: 2-8°C
• SMILES string: O(CC(CCCC)CC)c1cc(c(cc1)OC)C=C
• InChI: 1S/C17H26O2/c1-5-8-9-14(6-2)13-19-16-10-11-17(18-4)15(7-3)12-16/h7,10-12,14H,3,5-6,8-9,13H2,1-2,4H3
• InChI key: CTUSWJPWMNVXEE-UHFFFAOYSA-N

Description

General description

Light-emitting conjugated polymer.

MEH-PPV is a conducting organic semiconductor which has low molecular weight and hydrophobic characteristics. It is a poly(phenylenevinylene) (PPV) derivative and a conjugating polymer with highest occupied molecular orbital (HOMO) below the fermi level of gold.[1][2][3]

Application

Organic Semiconductor Laser Materials

Conducting polymer in solar cells and carbon nanotube OLEDs. Useful in producing bright and efficient white polymeric light emitting diodes.
Filter before application.

MEH-PPV can form a nanocomposite with carbon nanotubes (CNTs) by spin coating that can be used for H₂S gas sensors.[4] It can also be used as a conducting polymer which results in the formation of a low-cost dopant free hole transporting material (HTM) for the fabrication of perovskite solar cells with a power efficiency of 9.65%.[5] MEH-PPV can be blended with PCPDTBT for use as a sensitizer for dye sensitized photo sensors (DSPS).[6]

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves