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753998

Sigma-Aldrich

PCDTBT

Synonym(s):

Poly[N-9′-heptadecanyl-2,7-carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)], Poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl]

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About This Item

Linear Formula:
(C43H47N3S3)nC12H10
CAS Number:
958261-50-2
UNSPSC Code:
12352103
NACRES:
NA.23

description

Band gap: 1.9 eV

form

solid

mol wt

average Mw 100,000-140,000

loss

0.5 wt. % TGA, 409 °C

mp

270-300 °C

transition temp

Tm >400 °C

λmax

576 nm

Orbital energy

HOMO -5.5 eV 
LUMO -3.6 eV 

OPV Device Performance

ITO/MoO3-Al/PCDTBT:PC71BM/MoO3/Al

  • Short-circuit current density (Jsc): 10.88 mA/cm2
  • Open-circuit voltage (Voc): 0.88 V
  • Fill Factor (FF): 0.71
  • Power Conversion Efficiency (PCE): 6.77 %

ITO/PEDOT:PSS/PCDTBT:PC71BM (1:4)/TiOxAl
  • Short-circuit current density (Jsc): 11.32 mA/cm2
  • Open-circuit voltage (Voc): 0.88 V
  • Fill Factor (FF): 0.69
  • Power Conversion Efficiency (PCE): 6.9 %

ITO/PEDOT:PSS/PCDTBT:PC71BM/Al
  • Short-circuit current density (Jsc): 9.7 mA/cm2
  • Open-circuit voltage (Voc): 0.82 V
  • Fill Factor (FF): 0.61
  • Power Conversion Efficiency (PCE): 5.3 %

semiconductor properties

P-type (mobility=6×10−5 cm2/V·s)

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General description

PCDTBT is a carbozole based semiconducting co-polymer that is used as a donor material with a low band gap and a power efficiency of 9%. It has a quantum efficiency close to 100% that makes it a viable alternative of P3HT for a wide range of photovoltaics based applications.
Soluble in THF, chloroform, chlorobenzene, dichlorobenzene, and 1,2,3-trichlorobenzene

Application

PCDTBT blend with PCBM as a nanocomposite can be used as a donor/acceptor material for the fabrication of photovoltaic solar cells and photovoltaic inks. It may also be used as an active layer that can be used in the development of organic field effect transistors (OFETs) for the parts per million (ppm) level detection of NO2 gas.

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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Modeling of gate bias controlled NO2 response of the PCDTBT based organic field effect transistor
Kumar A, et al.
Chemical Physics Letters, 698(2), 7-10 (2018)
Jung Hwa Seo et al.
Journal of the American Chemical Society, 133(22), 8416-8419 (2011-05-12)
The power conversion efficiencies of bulk heterojunction (BHJ) solar cells can be increased from 5 to 6.5% by incorporating an ultrathin conjugated polyelectrolyte (CPE) layer between the active layer and the metal cathode. Poly[N-9''-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) and [6,6]-phenyl C(71) butyric acid
Nanomorphology of PCDTBT:PC70BM Bulk Heterojunction Solar Cells
Moon, J. S.; et al.
Advanced Engineering Materials, 2, 304-308 (2012)
Stability of organic solar cells with PCDTBT donor polymer: An interlaboratory study
Ciammaruchi L, et al.
Journal of Materials Research, 1-16 (2018)
TBT Entirely Dominates the Electronic Structure of the Conjugated Copolymer PCDTBT: Insights from Time-Resolved Electron Paramagnetic Resonance Spectroscopy
Matt C, et al.
Macromolecules, 1-16 (2018)
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