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Product Code M0321A1-50mg
Price £330 ex. VAT

PDBPyBT, electron transporting material for OFETs and OPVs

High purity and available online for priority dispatch

Specifications | Pricing and Options | MSDS | Literature and Reviews

Poly(2,5-bis(2-octyldodecyl)-3,6-di(pyridin-2-yl)-pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-2,2’-bithiophene) (DPPDPyBT), CAS number 1455028-36-0, is a good electron transporting material used in the application of OFETs and OPVs.

DPPDPyBT contains a DPP unit which has been found to be an excellent electron accepting moiety for a large number of polymer semiconductors for OTFTs, OPVs and OLEDs. DPPDPyBT has been proven to have a planar structure, together with two five-membered rings having six π-electrons being shared, an electron rich moiety with DPP and two pyridyl units being excellent electron withdrawing ability, resulting in DPPDPyBT being an excellent candidate as an electron transporting material.

As one of promising high charge carrier mobility polymers (electron and hole mobility up to 6.3 cm2V-1s-1 and 2.78 cm2V-1s-1 respectively, has been reported [1]), these type of polymers are also used as blending material (low ratio) for OPV devices to facilitate electron collection from the active layer to PCBMs [2].

PDBPyBT, a high-mobility n-type polymer, is now back in stock with higher molecular weight.

General Information

CAS number 1455028-36-0
Chemical formula (C64H92N4O2S2)n
HOMO / LUMO HOMO = 5.69 eV, LUMO = 4.33 eV [1]
  • Poly(2,5-bis(2-octyldodecyl)-3,6-di(pyridin-2-yl)-pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-2,2’-bithiophene)
Suggesting solvents Chlorobenzene at elevated temperature ca. 100 °C
Classification / Family Pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione, Bithiophene, Heterocyclic five-membered ring, Organic semiconducting materials, Low band gap polymers, Organic Photovoltaics, Polymer Solar Cells, OFETs, All-polymer solar cells.

Chemical Structure

DPPDPyBT chemical structure  
Chemical structure of Poly(2,5-bis(2-octyldodecyl)-3,6-di(pyridin-2-yl)-pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-2,2’-bithiophene) (DPPDPyBT) 

Synthetic Route

PDBPyBT was synthesised engaging Stille Coupling reaction with 3,6-Bis(5-bromopyridin-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and 5,5′-bis(trimethylstannyl)-2,2-bithiophene as starting materials in chlorobenzene as solvent. Polymer was purified by Soxhlet extraction with methanol, acetone, hexane and chlorobenzene as washing and extracting solvents.

synthesis of DPPDPyBT
PDBPyBT synthesise engaging Stille Coupling reaction with 3,6-di(5-bromopyridin-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and 5,5-bis(trimethylstannyl)-2,2-bithiophene as starting materials


Batch Quantity Price
50 mg £330
M0321A 100 mg £600
M0321A 250 mg £1400
M0321A 500 mg £2500
M0321A 1 g / 5 g* Please enquire

*for 1 - 5 grams order quantity, the lead time is 4-6 weeks.

Batch Mw Mn PDI Stock Info
M321 20,310 12,030 1.69 Discontinued
M322 750,909 157,538 4.77 Discontinued
M323 113,973 44,551 2.56 Discontinued
M0321A1 472,567 90,532 5.22 In stock

MSDS Documentation


Literature and Reviews

  1. Record High Electron Mobility of 6.3 cm2V-1s-1 Achieved for Polymer Semiconductors Using a New Building Block, B. Sun et al., Adv. Mater., 26, 2636-2642 (2014)
  2. Enhanced efficiency of polymer solar cells by adding a high-mobility conjugated polymer, S. Liu et al., Energy Environ. Sci., 8, 1463-1470 (2015)
  3. A pyridine-flanked diketopyrrolopyrrole (DPP)-based donor–acceptor polymer showing high mobility in ambipolar and n-channel organic thin film transistors, B. Sun, Polym. Chem., 6, 938-945 (2015)
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