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Product Code M2346A1-100mg
Price £400 ex. VAT

Fluoro-PTAA, HTL material for perovskite and polymer solar cells

Used to improve device efficiency and device operating lifetime

Fluoro-PTAA (specifically known as 1F-PTAA), or poly(bis(4-phenyl)(4-fluoro-2-methylphenyl)amine, is a mono-fluorinated poly(triaryl)amine which is used as a hole transporting layer (HTL) for perovskite and polymer solar cells.

With the substitution of the methyl to fluorine on the 4-postion, the HOMO energy level is significantly lowered from 5.14 eV to 5.52 eV, which is essential to increase the open voltage (VOC) thus to improve the device efficiency. Fluorination of PTAA also drastically improves device operating lifetime, moisture and thermal stress stability. Fluoro-PTAA is therefore considered a great alternative as a hole transporting layer material for PTAA and Spiro-OMeTAD.

PTAA from Ossila used in high impact paper

PTAA from Ossila was used in the high-impact paper (IF 30.85), Multiply Charged Conjugated Polyelectrolytes as a Multifunctional Interlayer for Efficient and Scalable Perovskite Solar Cells, E. Jung et al., Adv. Mater., 2002333 (2020); DOI: 10.1002/adma.202002333.

PTAA Semiconducting material

Improve stability

improve device efficiency and Stability

PTAA Lowered HOMO energy level

Lowered HOMO energy level

5.14 eV to 5.52 eV

Improve device operating lifetime Fluoro-PTAA

Improve lifetime

Improve device operating lifetime

Hole-transport layer Fluoro-PTAA

Hole-transport layer

improved device performance

Perovskite solar cells (PSCs) with hexyltrimethylammounium bromide (HTAB) cast perovskite quantum wells (PQWs) and 1F-PTAA as HTL demonstrated efficiencies exceeding 22% along with significantly improved device stability [2]

Device Structure(s)

Device structure

FTO/SnO2/Cs0.05FA0.81MA0.14PbI2.55Br0.45/1F-PTAA/Au [2]

JSC (mA cm-2) 23.11
VOC (V) 1.15
FF (%) 75.61
PCE 20.09
Device structure

FTO/SnO2/Cs0.05FA0.81MA0.14PbI2.55Br0.451F-PTAA/Au [2]

JSC (mA cm-2) 23.72
VOC (V) 1.21
FF (%) 77.21
PCE 22.16

General Information

CAS number N.A.
Chemical formula (C19H14NF)n
Full name Poly(bis(4-phenyl)(4-fluoro-2-methylphenyl)amine
Molecular weight  Please see batch details
HOMO / LUMO HOMO 5.52 eV, LUMO 2.55 eV [1]
Recommended solvents Chlorobenzene, chloroform, THF and toluene
Synonyms F-PTAA, FMe-PTAA, 1F-PTAA
Classification / Family

Polyamines, Hole-transport layer materials, Electron-blocking layer materials, Organic semiconducting materials, Organic photovoltaics, Polymer solar cells, Perovskite solar cells, OLED materials

Chemical Structure

Fluoro-PTAA chemical structure
Chemical structure of Poly(bis(4-phenyl)(4-fluoro-2-methylphenyl)amine (Fluoro-PTAA)

MSDS Documentation

Fluoro-PTAA (1F-PTAA) MSDS Fluoro-PTAA (1F-PTAA) MSDS sheet


Batch Quantity Price
M2346A 100 mg £400
M2346A 250 mg £800
M2346A 500 mg £1400

Batch details

Batch Mw PDI Stock info
M2346A1 30,000 1.4 In Stock
M2346A2 90,000 1.9 In Stock
M2346A3 160,000 2.7 In Stock

Literature and Reviews

  1. Sequentially Fluorinated PTAA Polymers for Enhancing VOC of High-Performance Perovskite Solar Cells, Y. Kim et al., Adv. Energy Mater., 8 (29), 1801668 (2018); DOI: 10.1002/aenm.201801668.
  2. Perovskite Quantum Wells Formation Mechanism for Stable Efficient Perovskite Photovoltaics—A Real-Time Phase-Transition Study, H. Hu et al., Adv. Mater., 33 (17), 2006238 (2020); DOI: 10.1002/adma.202006238.
  3. New Strategies for Defect Passivation in High-Efficiency Perovskite Solar Cells, S. Akin et al., Adv. Energy Mater., 10 (13), 1903090 (2020); DOI: 10.1002/aenm.201903090..
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