702471 Sigma-Aldrich


a poly(triaryl amine) semiconductor

Synonym: Poly(triaryl amine), Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine]

  • CAS Number 1333317-99-9

  • Linear Formula [C6H4N(C6H2(CH3)3)C6H4]n

  •  NACRES NA.23



Related Categories Hole Transport (HT) & Hole Injection Layer (HIL) Materials, Hole Transport Materials, Materials Science, OLED and PLED Materials, Organic Field Effect Transistor (OFET) Materials,
mol wt   average Mn 7,000-10,000 (GPC)
mp   >400 °C
Mw/Mn   2‑2.2
semiconductor properties   P-type (mobility=10−3 - 10−2 cm2/V·s)


General description

PTAA, poly(triaryl amine), semiconductor is an organic p-type semiconductor with hole mobilities of 10−3 up to 10−2 cm2 V−1 s−1 which results in a high carrier mobility. It is a stable glassy polymer and has good ionization potential for thick film diodes.


Polytriarylamine Semiconductors

PTAA can be coated as a substrate material which is used for the transportation of hole in the fabrication of many devices like perovskite solar cells, polymeric light emitting diodes and organic field effect transistors.


1 g in glass bottle

100 mg in glass insert

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles


High-Performance Semiconductor Polymers Based on Diketopyrrolopyrrole and Thienothiophene

Tony Wigglesworth, Yiliang Wu, Cuong Vong and Matthew Heuft Xerox Research Centre of Canada, Mississauga ON, L5K 2L1 Email:
Keywords: Electronics, Nucleic acid annealing, Printed electronics, Semiconductor, Solar cells, Solvents

Organic and Hybrid Electronics in Optical Analytical Applications

1Microelectronics Research Center and Department of Electrical & Computer Engineering, Iowa State University, Ames, IA, 50011, USA 2Department of Physics & Astronomy, Iowa State University, Ames, IA,...
Keywords: Absorption, Cardiovascular, Catalysis, Chromatin immunoprecipitation, Diagnostic, Electronics, Evaporation, Infrared spectroscopy, Materials Science, Oxidations, Recombination, Semiconductor, Sol-gel, Solar cells

Perovskite Solar Cells

School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
Keywords: Crystallization, Degradations, Deposition, Materials Science, Nucleic acid annealing, Photovoltaics, Recombination, Reductions, Renewable energy, Solar cells

Polytriarylamine Semiconductors

Organic electronics is an emerging scientific field of potentially huge technological and commercial relevance1, and is an increasingly ubiquitous research activity globally. One important area is th...
Iain McCulloch, Martin Heeney
Material Matters 2009, 4.3, 70.
Keywords: Bacterial conjugations, Catalysis, Condensations, Deposition, Detergents, Electronics, Magnetic resonance spectroscopy, Nucleic acid annealing, Organic electronics, Oxidations, Purification, Semiconductor, Solvents, Sonication, Spin coating, Suzuki coupling

Progress for High Performance Tandem Organic Solar Cells

The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China State...
Keywords: Absorption, Nucleic acid annealing, Polymer science, Recombination, Renewable energy, Semiconductor, Separation, Solar cells

Ultra-High Efficiency Perovskite-Perovskite Tandem Solar Cells

Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA *Email:
Zhen Li and Kai Zhu*
Material Matters, 2018, 13.1
Keywords: Absorption, Adhesion, Degradations, Deposition, Diffraction, Evaporation, Infrared spectroscopy, Nanotubes, Nucleic acid annealing, Oxidations, Photovoltaics, Recombination, Renewable energy, Semiconductor, Solar cells, Solvents, Ultraviolet-Visible spectroscopy, X-Ray diffraction


Fabrication of Poly(triaryl amine) Field-effect Transistors

Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] is an amorphous p-type polymer semiconductor.1, 2 It may be used to fabricate field-effect transistors (FETs). PTAA is also useful as a hole transport ...
Keywords: Deposition, Magnetic resonance spectroscopy, Semiconductor

Peer-Reviewed Papers


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