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
• 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

Description

General description

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.

Light-emitting conjugated polymer.

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. 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%. MEH-PPV can be blended with PCPDTBT for use as a sensitizer for dye sensitized photo sensors (DSPS).

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