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PTAA for Perovskite Applications

Product Code M0511A6-100mg
Price $253.00 ex. VAT

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 has been reported that the use of PTAA can substantially improve the open-circuit voltage (VOC) and fill factor (FF) of the cells. Perovskite solar cells based on the use of the hole-transporting materials exhibit a short-circuit current density JSC of 16.5 mA/cm2VOC of 0.997 V and FF of 0.727.[1]

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.

With PTAA as the hole-transport layer (HTL), best results have shown that the incorporation of MAPbBr3 into FAPbI3 stabilizes the perovskite phase of FAPbI3, improving the power conversion efficiency of the solar cell to more than 18% under a standard illumination of 100 milliwatts/cm2 [2]. This makes PTAA the best polymer HTL yet for perovskites. Later on, 20.2% was achieved in 2015 with PTAA as the HTL [3].

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

Device Structure(s)

Device structure FTO/bl-TiO2/mp-TiO2/CH3NH3PbI3/PTAA/Au [1] FTO/bl-TiO2/mp-TiO2/CH3NH3PbI3/Au [1]
JSC (mA cm-2) 16.4 6.8
VOC (V) 0.9 0.68
FF (%) 61.4 53.8
PCE 9.0 2.5
Device structure FTO/TiO2/(FAPbI3)0.85(MAPbBr3)0.15/PTAA/Au [2]
JSC (mA cm-2) 22.5
VOC (V) 1.11
FF (%) 73.2
PCE 18.4
Device structure FTO/bl-TiO2/mp-TiO2/FAPbI3 (DMSO)/PTAA/Au [3]
JSC (mA cm-2) 24.7
VOC (V) 1.06
FF (%) 77.5
PCE 20.2

MSDS Documentation

PTAA (Perovskite) MSDSPTAA (Perovskite) MSDS sheet


Batch Quantity Price
M0511A 100 mg £230
M0511A 250 mg £460
M0511A 500 mg £800
M0511A 1 g £1350

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Batch details

Batch Mw Mn PDI Stock info
M512 27,371 13,514 2.02 Discontinued
M513 28,422 17,437 1.63 Discontinued
M514 14,000 9,150 1.53 Discontinued
M515 33,000 12,220 2.7 Discontinued
M0511A1 103,141 62,891 1.64 Discontinued
M0511A2 55,000 20,370 2.7 Discontinued
M0511A3 13,000 9,286 1.4 Discontinued
M0511A4 30,000 15,000 2.0 Discontinued
M0511A5 25,000 12,500 2.0 Discontinued
M0511A6 13,000 8,667 1.5 In Stock
M0511A7 30,000 12,500 2.4 In Stock

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.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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