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

Quality Level


Band gap: 1.9 eV

mol wt

average Mw 100,000-140,000


0.5 wt. % TGA, 409 °C


270-300 °C

transition temp

Tm >400 °C


576 nm

Orbital energy

HOMO -5.5 eV 
LUMO -3.6 eV 

OPV Device Performance


  • 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 %

  • 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 %

  • 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

Soluble in THF, chloroform, chlorobenzene, dichlorobenzene, and 1,2,3-trichlorobenzene
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.


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.


100 mg in glass insert

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Nanomorphology of PCDTBT:PC70BM Bulk Heterojunction Solar Cells
Moon, J. S.; et al.
Advanced Engineering Materials, 2, 304-308 (2012)
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)
Stability of organic solar cells with PCDTBT donor polymer: An interlaboratory study
Ciammaruchi L, et al.
Journal of Materials Research, 1-16 (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...
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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