PTAA for Perovskite Applications

Order Code: M515
Not in stock

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]

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


    Classification / Family

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

    trimethylphenyl amine ptaa poly(triaryl)amine
    Chemical structure of Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine, PTAA, CAS No. 1333317-99-9
    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


    Batch Quantity Price
    M515 100 mg £192.00 £383.00 £634.00 £987.00 £1730.00

    To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.