PolyTPD

CAS Number 472960-35-3

Interface Polymers, Materials, OFET & OLED Polymer Materials, Perovskite Interface Materials, Perovskite Materials, Semiconducting Polymers

MSDS

PolyTPD, excellent HTL material for photovoltaics

High quality polymer available with free shipping on qualifying orders

Specifications | MSDS | Pricing and Options | Literature and Reviews

Poly(N,N'-bis-4-butylphenyl-N,N'-bisphenyl)benzidine, also known as polyTPD or Poly-TPD (CAS number 472960-35-3), is an excellent hole transport layer material used in photovoltaics such as perovskite solar cells. It has also proven polyTPD is a promising HTL candidate in multilayer WPLEDs because its HOMO level 5.2 eV is very close to the work function of the indium tin oxide ITO/PEDOT:PSS anode.

PolyTPD from Ossila was used in the high-impact paper (IF 13.281), Self-Powered Low-Cost UVC Sensor Based on Organic-Inorganic Heterojunction for Partial Discharge Detection, T. Park et al., Small, 2100695 (2021); DOI: 10.1002/smll.202100695.

As the highest occupied molecular orbital (HOMO) of polyTPD matches well with the VB of the perovskite, which allows for a good transport of holes towards the polyTPD, it is a popular semiconducting material candidate that is used in the HTL of the perovskite structures. And also as the LUMO of polyTPD is significantly closer to vacuum compared with that of the perovskite CB, polyTPD efficiently blocks the flow of electrons [5].

Like PTAA, polyTPD is one of the family members of poly(triaryl)amines.

General Information

CAS Number	472960-35-3
Chemical Formula	(C₂₂H₂₁N)_n
Molecular Weight	See batch information below
HOMO / LUMO	HOMO 5.2 eV LUMO 2.3 eV [1]
Recommended Solvents	Toluene, THF, Chloroform, Chlorobenzene
Synonyms	Poly[N,N’-bis(4-butylphenyl)-N,N’-bisphenylbenzidine] Poly(4-butylphenyldiphenylamine) polytpd poly-tpd
Classification / Family	Poly(triarylamines), Organic semiconducting materials, Hole transport layer materials (HTL), Electron block layer material (EBL), Organic Photovoltaics, Polymer Solar Cells, Light-emitting Diodes, Quantun Dot Light-emitting Diodes, OFETs and Perovskite hole transport layer materials

Chemical Structure

Device Structure(s)

Device Structure	ITO/PEDOT:PSS/PVK:polyTPD (1:1 wt%) 50 nm/PFO:MEH-PPV*(95.5:0.5 wt%) 70 nm/Ca/Al [4]
Colour	White
Max. Luminance	~ 5,000 cd/m²
Max. Current Efficiency	3.15 cd/A

Device Structure	ITO/P(VDF-TrFE-CFE) (1000 nm)/poly-TPD:F4TCNQ (7%, 70 nm)/ PVK:OXD-7:Ir(ppy)₃ (150 nm)/TmPyPB(40 nm)/LiF(1 nm)/Al(150 nm) [7]
Colour	Green
Max. Luminance	13,800 cd/m²
Max. Current Efficiency	76.2 cd/A
Max. Power Efficiency	17.1 lm W⁻¹

Device Structure	ITO/PEDOT:PSS(30 nm)/poly-TPD(40 nm)/DNA-CTMA*(20 nm)/PFO:MEH-PPV (70 nm)/Cs₂CO₃(1 – 2 nm)/Al [2]
Colour	White
Max. Luminance	10,500 cd/m²
Max. Current Efficiency	10 cd/A

*For chemical structure informations please refer to the cited references

Device Structure	ITO/polyTPD/CH₃NH₃PbI₃/PCBM/C60/BCP/Ag [6]	ITO/PEDOT:PSS/CH₃NH₃PbI₃/PCBM/C60/BCP/Ag [6]
J_SC (mA cm^-2)	22.0	11.3
V_OC (V)	1.0 (1.1^a)	0.79
FF (%)	69.7	62.7
PCE (best)	15.3	5.58

PolyTPD as a HTL to compare with PEDOT:PSS a) 1.0 V in the supporting information and 1.1 V in the body text of the cited lit. [6]

MSDS Documentation

PolyTPD MSDS Sheet

Pricing

Batch	Quantity	Price
M0521A	100 mg	£250
M0521A	250 mg	£500
M0521A	500 mg	£800
M0521A	1 g	£1250

Batch information

Batch	Mw	Mn	PDI	Stock info
M521	100 – 150 kDa			Discontinued
M522	44,797	25,374	1.77	Discontinued
M523	80,000	22,900	3.5	Discontinued
M524	52,000	20,800	2.5	Discontinued
M0521A1	15,000	6,000	2.5	Discontinued
M0521A2	41 kDa	16.4 kDa	2.5	Discontinued
M0521A3	15,268	8,290	1.84	Discontinued
M0521A4	19,345	7,620	2.54	In stock

Literature and Reviews

Bright, multicoloured light-emitting diodes based on quantum dots, Q. Sun et al., Nat. Photonics, 1, 717 - 722 (2007); doi:10.1038/nphoton.2007.226.
Multilayer white polymer light-emitting diodes with deoxyribonucleic acid-cetyltrimetylammonium complex as a hole-transporting/electronblocking layer, Q. Sun et al., Appl. Phys. Lett., 92, 251108 (2008); doi: 10.1063/1.2948864.
Electro-optics of perovskite solar cells, Q. Lin et al., Nat. Photonics, 9, 106–112 (2015); doi:10.1038/nphoton.2014.284.

Enhanced performance of white polymer light-emitting diodes using polymer blends as hole-transporting layers, Q. Sun et al., Appl. Phys. Lett., 89, 153501 (2006); http://dx.doi.org/10.1063/1.2360248.
Perovskite solar cells employing organic charge-transport layers, O. Malinkiewicz et al., Nat. Photonics 8, 128–132 (2014); doi:10.1038/nphoton.2013.341.
High-Efficiency Solution-Processed Planar Perovskite Solar Cells with a Polymer Hole Transport Layer, D. Zhao et al., Adv. Energy Mater., 5, 1401855 (2015); DOI: 10.1002/aenm.201401855.
Solution-Processed Highly Efficient Alternating CurrentDriven Field-Induced Polymer Electroluminescent Devices Employing High- k Relaxor Ferroelectric Polymer Dielectric, Y. Chen et al., Adv. Funct. Mater., 24, 1501–1508 (2014); DOI: 10.1002/adfm.201302587.
Pure Formamidinium-Based Perovskite Light-Emitting Diodes with High Efficiency and Low Driving Voltage, L. Meng et al., Adv. Mater., 29, 1603826 (2017); DOI: 10.1002/adma.201603826.