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907065

Sigma-Aldrich

Poly-TPD

greener alternative

Mw ≥20,000 g/mol

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Synonym(s):
4-Butyl-N,N-diphenylaniline homopolymer, Poly(4-butyl-N,N-diphenylaniline), Poly(4-butyltriphenylamine), Poly[N,N′-bis(4-butylphenyl) -N,N′-bis(phenyl)-benzidine]
Linear Formula:
(C22H21N)n
CAS Number:

description

Solution processable

form

powder

mol wt

Mw ≥20,000 g/mol

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

mp

>300 °C

Orbital energy

HOMO -5.2 eV 
LUMO -2.4 eV 

greener alternative category

storage temp.

15-25°C

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This Item
901099443263702471
Poly-TPD Mw ≥20,000 g/mol

Sigma-Aldrich

907065

Poly-TPD

PBDB-T

Sigma-Aldrich

901099

PBDB-T

PTAA a poly(triaryl amine) semiconductor

Sigma-Aldrich

702471

PTAA

mp

>300 °C

mp

>200 °C

mp

175-177 °C (lit.)

mp

>400 °C

storage temp.

15-25°C

storage temp.

-

storage temp.

-

storage temp.

-

description

Solution processable

description

Band gap: 1.8 eV, Limited solubility in CHCl3

description

-

description

-

mol wt

Mw ≥20,000 g/mol

mol wt

Mw >50,000 by GPC (GPC standard: PS)

mol wt

-

mol wt

average Mn 7,000-10,000 (GPC)

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with "Design for energy efficency". Hole transport organic materials allow perfect energy level alignment with the absorber layer and therefore efficient charge collection, are prone to degradation in ambient conditions.Click here for more information.

Application

In a recent study of a double-junction Quantum-Dot Light-Emitting Diodes (QD-LEDs), an impressive high quantum efficiency of 42.2% and a high current efficiency of 183.3 cd/A were achieved, which are comparable to those of the best vacuum-deposited tandem organic LEDs. Such high-efficiency devices are achieved by interface engineering of fully optimized single light-emitting units, which improves carriers′ transport/injection balance and suppresses exciton quenching induced by ZnO, and design of an effective interconnecting layer consisting of Poly-TPD mixed poly(9-vinylcarbazole) (PVK)/poly(3,4-ethylenedioxythiophene):polystyrene sulfonate/polyethylenimine ethoxylated-modified ZnO.

Indoor photovoltaics is one of the best sustainable and reliable energy source for low power consumption electronics such as the rapidly growing Internet of Things.
In another recent study, Perovskite photovoltaic (PPV) cells with a mesoporous PPV (mPPV) structure using typical Spiro-OMeTAD as the hole transport layer (HTL) shows the highest maximum power density (Pmax) of 19.9 μW/cm2 under 200 lux and 115.6 μWcm-2 under 1000 lux (without masking), which is among the best of the indoor PV. When PEDOT:PSS is replaced by Poly-TPD as HTL in the inverted PPV (iPPV) cell, the Pmax under indoor light improves significantly and is comparable to that of the best mesoporous mPPV cell.


Device performance:
iPPV-Poly-TPD
1. under one sun [Pin=100 mW/cm2]
Jsc=21.8 mA/cm2
Voc=1.07 V
FF=73.7%
PCE=17.2%

2. under 1000 lux [200 lux]
Jsc=172.3 mA/cm2
Voc=0.851 V
FF=75.9%
Pmax=111.3 mW/cm
Poly-TPD is a solution processable polymer hole transport material. It′s applications include:
  • Organic Light Emitting Diode (OLED): Hole transport layer / Electron blocking layer (HTL/EBL) Materials
  • Solution-Processed OLED : Polymer hole transport layer
  • Dye-Sensitized Solar Cell (DSSC):Hole transport materials
  • Perovskite Solar Cells:Hole transport material
  • Flexible Printed Electronics:Hole transport layer / Hole injection layer(HTL/HIL) Polymers

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Piaoyang Shen et al.
ACS applied materials & interfaces, 11(1), 1065-1070 (2018-12-20)
Despite the rapid development in quantum-dot light-emitting diodes (QD-LEDs) with a single junction, it remains a big challenge to make tandem QD-LEDs with high performance. Here, we report solution-processed double-junction tandem QD-LEDs with a high external quantum efficiency of 42.2%
Outstanding Indoor Performance of Perovskite Photovoltaic Cells - Effect of Device Architectures and Interlayers.
Lee H K H, et al.
Solar RRL, 3(1), 1800207-1800207 (2019)

Articles

Professor Chen (Nankai University, China) and his team explain the strategies behind their recent record-breaking organic solar cells, reaching a power conversion efficiency of 17.3%.

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