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Product Code M125-50ml
Price £260 ex. VAT

Toluene-Based PEDOT Formulation

Used for applications in OPV and perovskite solar cells

The future production of HTL Solar 3 PEDOT Complex has been discontinued. We can only supply HTL Solar 3 PEDOT Complex as stock lasts. It will be replaced by HTL Solar 4 PEDOT (M1214) Complex in anisole as an alternative with similar properties.


HTL Solar 3 PEDOT Complex is a toluene-based PEDOT formulation using an alternative counter ionomer to PSS, allowing for the dispersion in toluene. HTL Solar 3 is ideal for use with materials, or in environments, that are water sensitive. Examples include in glove box environments or for use with perovskite inks or perovskite precursor materials.

Increased Wettability PEDOT

Increased Wettability

Ideal for perovskite solar cells or with materials dissolved in or degraded by water.

Versatile use for OPV, OLED and perovskite solar cells

Versatile use

ideal for use with water sensitive materials or environments

High quality PEDOT

High quality

Quality Formulation

Low Conductivity PEDOT

Low Conductivity

Low conductivity 0.002 – 0.2 S/cm

PEDOT:PSS from Ossila was featured in the high-impact paper (IF 30.85)

PEDOT Complex (HTL Solar 3) from Ossila was featured in the high-impact paper (IF 39.8), Efficient, stable, and fully printed carbon-electrode perovskite solar cells enabled by hole-transporting bilayers, T. Du et al., Joule, 7 (8), 1920-1937 (2023); DOI: 10.1016/j.joule.2023.06.005; and paper (IF 22.0), Carbazole-Based Hole Transport Polymer for Methylammonium-Free Tin–Lead Perovskite Solar Cells with Enhanced Efficiency and Stability, J. Wang et al., ACS Energy Lett., 7 (10), 3353–3361 (2022); DOI: 10.1021/acsenergylett.2c01578.

Technical Data


Product Name Clevios™ HTL Solar 3
Solvent Toluene
Composition PEDOT complex
Solid Content 1.5 – 2.5 wt.%
Work Function 4.4 – 4.8 eV
Resistivity 5 – 500 Ω/cm
Sheet Resistance +10E6 Ω/sq
Conductivity Low conductivity 0.002 – 0.2 S/cm
Particle Size Distribution N/A
Viscosity <30 mPa.s
pH Value N/A
Packaging 2 x 25 ml of solution sealed in light resistant bottles with temperature indicators
Storage 3 – 5 °C

Spin Speed Data


HTL Solar 3 Spin Speed / Film ThicknessHTL Solar 3 Spin Speed / Film Thickness

MSDS Document


HTL Solar 3 MSDS SheetHTL Solar 3 PEDOT Complex MSDS Sheet

Further Content Information


What is PEDOT:PSS? What is PEDOT:PSS?

PEDOT:PSS is a blend of two distinct polymers: poly(3,4-ethylenedioxythiophene) (PEDOT) and polystyrene sulfonate (PSS).

Read more...
PEDOT and PEDOT:PSS Synthesis PEDOT and PEDOT:PSS Synthesis

PEDOT synthesis involves the oxidative chemical or electrochemical polymerization of EDOT monomer. The choice of counterions and polymerization method significantly affects the conductivity, work function, and stability of the resulting PEDOT polymer.

Read more...
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