fluoro-ptaa

Fluoro-PTAA

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SOL2446

Poly[bis(4-phenyl)(4-fluoro-2-methylphenyl)amine is one of the family members of poly(triaryl)amine, closely related to PTAA but with a deeper HOMO energy level of −5.52 eV (vs −5.14 eV for PTAA).

The use of this polymer can significantly improve the open-circuit voltage (VOC) and the fill factor (FF) of the cells in high-performance perovskite solar cells.

Fluoro-PTAA can be coated as a substrate material used for hole transport in the manufacture of many devices such as perovskite solar cells, organic light-emitting diodes (OLED), and organic field-effect transistors.

Four grades are available. Custom Mw and pdi available.

Or buy a specific: PTAA Polyrium batches

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Description

Fluoro-PTAA (SOL2446) – Deeper HOMO Hole Transport Polymer

Fluoro-PTAA (SOL2446), or Poly[bis(4-phenyl)(4-fluoro-2-methylphenyl)amine], is a fluorinated derivative of poly(triaryl)amine engineered with a deeper HOMO energy level of −5.52 eV (vs −5.14 eV for standard PTAA). Designed to efficiently transport holes and block electrons, Fluoro-PTAA significantly improves open-circuit voltage (VOC) and fill factor (FF) in high-performance perovskite solar cells, OLEDs, and OTFTs.

Key Advantages of Fluoro-PTAA

  • Deeper HOMO Energy Level (−5.52 eV): Minimizes energetic offset at the active layer interface to maximize VOC and fill factor (FF).
  • Robust Charge Transport & Electron Blocking: High hole mobility coupled with effective electron blocking properties.
  • Versatile Solution Processing: Excellent solubility in organic solvents (THF, Toluene, o-DCB) for uniform thin-film coating.
  • Multi-Device Compatibility: Ideal HTL substrate material for perovskite solar cells, OLEDs, and organic field-effect transistors (OTFTs).

Available Molecular Weight (Mw) Grades

Select the optimal molecular weight grade tailored to your device architecture and coating viscosity requirements:

  • Low Mw (5 – 20 kDa): Ref. SOL2446L
  • Medium Mw (20 – 50 kDa): Ref. SOL2446M
  • Medium-High Mw (50 – 100 kDa): Ref. SOL2446MH
  • High Mw (100 – 200 kDa): Ref. SOL2446H

Standard PTAA from your trusted manufacturer is also available upon request.

Technical Documentation & Promotional Flyers

Safety Data Sheet:
Download SDS-SOL2446 (PDF)

Promotional Materials:
Flyer (English – Full) |
Flyer (English – ECO)

Fluoro-PTAA (SOL2446) Technical Specifications

Property Specification / Value
Acronyms 4-fluoro-PTAA
Chemical Name Poly[bis(4-phenyl)(4-fluoro-2-methylphenyl)amine]
CAS Number N/A
Appearance Pale yellow powder
Absorption max (λmax) 372 nm
HOMO Energy Level −5.52 eV
LUMO Energy Level −2.55 eV
Optical Bandgap (Eg) 2.97 eV
Decomposition Temperature (Td) 522 °C (under inert atmosphere)
Solubility THF, Toluene, o-DCB

Peer-Reviewed Scientific Citation

“Sequentially Fluorinated PTAA Polymers for Enhancing VOC of High-Performance Perovskite Solar Cells”

Authors: Youngwoong Kim, Eui Hyuk Jung, Geunjin Kim, Donguk Kim, Bumjoon J. Kim*, Jangwon Seo.
Journal: Advanced Energy Materials

DOI: https://doi.org/10.1002/aenm.201801668

Frequently Asked Questions (FAQ)

What is the key advantage of Fluoro-PTAA over standard PTAA in solar cells?

Fluoro-PTAA (SOL2446) features a deeper HOMO energy level of -5.52 eV (compared to -5.14 eV for standard PTAA). This deeper HOMO level significantly reduces interfacial energy loss, boosting open-circuit voltage (VOC) and fill factor (FF) in high-performance perovskite solar cells.

What molecular weight grades of Fluoro-PTAA are available?

Solaris Chem offers four distinct molecular weight grades for Fluoro-PTAA: Low Mw 5-20 kDa (SOL2446L), Medium Mw 20-50 kDa (SOL2446M), Medium-High Mw 50-100 kDa (SOL2446MH), and High Mw 100-200 kDa (SOL2446H).

Request pricing for larger quantity

* Price subject to change without prior notice.

Notice: Products for Research and Development. Laboratory use only by qualified personnel. The user should read the available SDS and be aware of any precautions to take for the safe manipulation of these materials. Solaris Chem shall not be held responsible for any damage resulting from handling or use.

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