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745901

Sigma-Aldrich

PBTTPD

Synonym(s):

Poly[[5-(2-ethylhexyl)-5,6-dihydro-4,6-dioxo-4H-thieno[3,4-c]pyrrole-1,3-diyl](4,4′-didodecyl[2,2′-bithiophene]-5,5′-diyl)]

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About This Item

Linear Formula:
(C46H69NO2S3)n
CAS Number:
1240372-42-2
UNSPSC Code:
12352103
NACRES:
NA.23

description

Band gap: 1.82 eV

form

solid

mol wt

average Mn 3,500-20,000 g/mol

λmax

572 nm (thin film)

Orbital energy

HOMO -5.56 eV 
LUMO -3.1 eV 

PDI

1.2‑2.5

General description

HOMO: -5.56 eV
LUMO: -3.10 eV
UV absorption: λmax = 572 nm;Eg = 1.82 eV
Solubility: This polymer can be dissolved easily in hot chloroform;hot chlorobenzene;hot dichlorobenzene
PBTTPD is a donor-acceptor based high crystalline conducting polymer. It has thieno[3,4-c]pyrrole-4,6-dione (TPD), which acts as the electron-withdrawing group. Bi(dodecyl)thiophene based donor groups facilitate the polymeric unit with crystallinity and low HOMO energy levels. It shows good hole mobility and open circuit voltage (VOC).

Application

  • High-Efficiency Organic Solar Cells (OPVs)
  • Power conversion efficiency (PCE): 7.3%
  • Open circuit voltage (Voc): 0.92 V
  • Short circuit current density (Jsc): 13.1 mA/cm2
  • Fill factor (FF): 0.61
PBTTPD is majorly used as a conjugating polymer in the fabrication of organic solar cells (OSCs) and organic photovoltaic cells (OPVs). It has a power conversion efficiency (PCE) of 7.3% and a VOC of 0.92V.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBR9502V

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Structural Evolution of Crystalline Conjugated Polymer/Fullerene Domains from Solution to the Solid State in the Presence and Absence of an Additive
Su Y, et al.
The Journal of Physical Chemistry C, 119(6), 3408-3417 (2015)
Crystalline donor-acceptor conjugated polymers for bulk heterojunction photovoltaics
Jiang J, et al.
Journal of Material Chemistry A, 1(14), 4415-4422 (2013)
A thieno [3, 4-c] pyrrole-4, 6-dione-based donor- acceptor polymer exhibiting high crystallinity for photovoltaic applications
Yuan M, et al.
Macromolecules, 43(17), 6936-6938 (2010)
Improving device efficiency of polymer/fullerene bulk heterojunction solar cells through enhanced crystallinity and reduced grain boundaries induced by solvent additives.
Ming-Shin Su et al.
Advanced materials (Deerfield Beach, Fla.), 23(29), 3315-3319 (2011-06-15)

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