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Product Code M0511A8-100mg
Price $313 ex. VAT

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PTAA, to substantially improve PCE of perovskite solar cells

High quality HTL and EBL semiconducting material

Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine (PTAA), one of the family members of poly(triaryl)amine, is an excellent hole-transporting and electron-blocking semiconducting material due to its electron-rich components. It is a popular choice for perovskite solar cell devices, due to its:

  • Easy processibility
  • Good hole transport and electron blocking qualities
  • High thermal stability
  • Use in both regular and inverted devices
Ossila's PTAA was used in a high impact paper (IF 30.85)

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

Semiconducting material

High quality HTL and EBL semiconducting material

Reduced electron-hole recombination

Improve open circuit voltage

(Voc) and fill factor (FF)

High Quality PTAA for Perovskite Applications

High Quality

High quality & Electron Rich

Hole-transport layer Perovskite Applications

Hole-transport layer

improved device performance

General Information

CAS number 1333317-99-9
Chemical formula (C21H19N)n
Molecular weight Please see batch details
HOMO / LUMO HOMO 5.25 eV      LUMO 2.30 eV [6]
Recommended solvents Chlorobenzene, chloroform, dichlorobenzene and toluene
  • Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine
  • Poly(triarylamine)
Classification / Family Polyamines, Hole-transport layer materials, Electron-blocking layer materials, Organic semiconducting materials, Organic photovoltaics, Polymer solar cells, OLED materials

Chemical Structure

Chemical structure of Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine
Chemical structure of Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine

Notable Device Performances using PTAA

16.5 mA/cm2 0.997 V 72.7% 12.0% (Heo et al., 2013)
21.84 mA/cm2 1.114 73.6% 17.91% (Jeon et al., 2015)
24.7 mA/cm2 1.06 77.5% 20.2% (Yang et al., 2015)
25.7 mA/cm2 1.118 82.3% 25.0% (Li et al., 2022)

MSDS Documentation

PTAA (Perovskite) MSDSPTAA (Perovskite) MSDS sheet


Batch Quantity Price
M0511A 100 mg £250
M0511A 250 mg £500
M0511A 500 mg £900
M0511A 1 g £1500

Free worldwide shipping on qualifying orders.

Batch details

Batch* Mw Mn PDI Stock info
M0511A5 25,000 12,500 2.0 Discontinued
M0511A6 13,000 8,667 1.5 Discontinued
M0511A7 30 kDa 12.5 kDa 2.4 Discontinued
M0511A8 56 kDa 19.5 kDa 2.87 In Stock
M0511A9 11 kDa 6.9 kDa 1.6 In Stock

*Older batch information available on request.

Literature and Reviews

  1. Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors, J. Heo et al., Nat. Photonics 7, 486–491 (2013) doi:10.1038/nphoton.2013.80.
  2. Compositional engineering of perovskite materials for high-performance solar cells, N. Jeon et al., Nature 517, 476–480 (2015), doi:10.1038/nature14133.
  3. High-performance photovoltaic perovskite layers fabricated through intramolecular exchange, W-S. Yang et al., Science, 348 (6240), 1234-1237 (2015). DOI: 10.1126/science.aaa9272.
  4. High-efficient solid-state perovskite solar cells without lithium salt in the hole transport material, NANO 09, 1440001 (2014). DOI: 10.1142/S1793292014400013.
  5. Chemical Management for Colorful, Efficient, and Stable Inorganic−Organic Hybrid Nanostructured Solar Cells, J. Noh et al., Nano Lett., 13, 1764−1769 (2013),
  6. Achieving a stable time response in polymeric radiation sensors under charge injection by X-rays, A. Intaniwet et al., ACS Appl Mater Interfaces. 2(6), 1692-9 (2010). doi: 10.1021/am100220y.
  7. Enhanced Charge Separation in Ternary P3HT/PCBM/CuInS2 Nanocrystals Hybrid Solar Cells, A. Lefrançois et al., Sci Rep. 2015; 5: 7768. doi: 10.1038/srep07768.
  8. Dopant-Free Spiro-Triphenylamine/Fluorene as Hole-Transporting Material for Perovskite Solar Cells with Enhanced Efficiency and Stability, Y. Wang et al., Adv. Funct. Mater., 26, 1375–1381 (2016); DOI: 10.1002/adfm.201504245.
  9. Multiply charged conjugated polyelectrolytes as a multifunctional interlayer for efficient and scalable perovskite solar cellsJung, E.D. et al. Advanced Materials, 32(30). (2020). doi: 10.1002/adma.202002333.
  10. Li, Z. et al. (2022b) 'Organometallic-functionalized interfaces for highly efficient inverted perovskite solar cells,' Science, 376(6591), pp. 416–420.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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