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754005

Sigma-Aldrich

PCPDTBT

average Mw 7,000-20,000

Synonym(s):

Poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b′]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)]

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About This Item

Linear Formula:
(C31H38N2S3)n
CAS Number:
UNSPSC Code:
12352103
NACRES:
NA.23

description

Band gap: 1.75 eV

Quality Level

form

solid

mol wt

average Mw 7,000-20,000

loss

0.5 wt. % TGA, 350 °C

mp

>400 °C

λmax

700 nm

Orbital energy

HOMO -5.3 eV 
LUMO -3.55 eV 

OPV Device Performance

ITO/PEDOT:PSS/PCPDTBT:PC61BM/Al

  • Short-circuit current density (Jsc): 16.2 mA/cm2
  • Open-circuit voltage (Voc): 0.62 V
  • Fill Factor (FF): 0.55
  • Power Conversion Efficiency (PCE): 5.2 %

semiconductor properties

P-type (mobility=2×10−2 cm2/V·s)

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General description

PCPDTBT is a low band gap polymer that is used as a donor material with a high photovoltaic efficiency. It can form blends with a variety of conducting polymers which can be used to enhance the power conversion efficiency (PCE) in an electrochemical device.
Soluble in cyclohexane, toluene, chloroform, and THF

Application

PCPDTBT can form a donor/acceptor blend with PCBM which can be used as a polymeric backbone for use in the fabrication of organic solar cells.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Small Bandgap Polymers for Organic Solar Cells (Polymer Material Development in the Last 5 Years)
Kroon, R.; Lenes, M.; Hummelen, J.; et al.
Polymer Reviews, 48, 531-582 (2008)
Bulk heterojunction bipolar field-effect transistors processed with alkane dithiol
Cho S, et al.
Organic Electronics, 9(6), 1107-1111 (2008)
J Peet et al.
Nature materials, 6(7), 497-500 (2007-05-29)
High charge-separation efficiency combined with the reduced fabrication costs associated with solution processing and the potential for implementation on flexible substrates make 'plastic' solar cells a compelling option for tomorrow's photovoltaics. Attempts to control the donor/acceptor morphology in bulk heterojunction
An integrated experimental/theoretical study of structurally related poly-thiophenes used in photovoltaic systems
Vanossi D, et al.
Molecules (Basel), 21(1), 110-110 (2016)
Efficiency enhancement for bulk-heterojunction hybrid solar cells based on acid treated CdSe quantum dots and low bandgap polymer PCPDTBT
Zhou Y, et al.
Solar Energy Materials and Solar Cells, 95(4), 1232-1237 (2011)

Articles

The development of high-performance conjugated organic molecules and polymers has received widespread attention in industrial and academic research.

Organic materials in optoelectronic devices like LEDs and solar cells are of significant academic and commercial interest.

Organic materials in optoelectronic devices like LEDs and solar cells are of significant academic and commercial interest.

Organic materials in optoelectronic devices like LEDs and solar cells are of significant academic and commercial interest.

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