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754005

Sigma-Aldrich

PCPDTBT

average Mw 7,000-20,000

Sinónimos:

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

Fórmula lineal:
(C31H38N2S3)n
Número de CAS:
920515-34-0
UNSPSC Code:
12352103
NACRES:
NA.23

description

Band gap: 1.75 eV

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

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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)
David Muhlbacher,
Advanced Materials, 18, 2884-2889 (2006)
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)
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
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