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Hole injection materials

High-φ PEDOT:PSS

AH-PHAH-PHAAH-PHBAH-PH-S

Water-based PEDOT:PSS with an exceptionally high work function, for efficient hole injection in organic, perovskite and stretchable devices. AH-PH-S is a stretchable grade for devices that need to stretch.

Catalog PDF
High-φ PEDOT:PSS solution in a vial
Applications
  • Hole injection layers for organic and stretchable electronics
  • Displays (OLEDs and more)
  • Solar cells (organic and perovskite)
Features
  • Coats glass, PET, PEN and more
  • Excellent processability
  • Exceptionally high work function

Specifications

Typical properties

PropertyUnitAH-PHAH-PHAAH-PHB
Work functioneV5.3–5.4> 5.4> 5.7
ConductivityS/cm~10⁻³~10⁻³~10⁻³
Solvent–WaterWaterWater
Appearance–Dark blueDark blueDark blue

Reference PEDOT:PSS (Company H): work function ~5.0 eV. Please contact us for AH-PH-S (stretchable grade) specifications.
Values are typical and may vary with processing conditions.

Perovskite LED performance

Perovskite LEDs using each grade as the hole injection layer, compared with a reference PEDOT:PSS.

ReferenceAH-PHAH-PHAAH-PHB
Max. luminance cd/m² (at V)80 (7.2)124 (6.9)202 (6.9)181 (6.3)
Max. luminous efficiency cd/A2.743.053.555.48
Luminance versus voltage for perovskite LEDs with Reference, AH-PH, AH-PHA and AH-PHB hole injection layers
Luminance–voltage curves. Perovskite LEDs using each grade as the hole injection layer. All three grades reach a higher maximum luminance than the reference.
Resistance change (R/R₀) of AH-PH and AH-PH-S at 0 to 60 % strain
Stretch test. Resistance change under strain (R/R₀): AH-PH vs. the stretchable grade AH-PH-S. AH-PH-S shows a much smaller rise in resistance when stretched.

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