PDBPyBT (DPPDPyBT, high-mobility n-type polymer)

Order Code: M322
MSDS sheet


(excluding Taxes)


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


Batch Quantity Price
M322 50 mg £249
M322 100 mg £448.2
M322 250 mg £1038.5
M322 500 mg £1885.2
M322 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 Out of stock
M322 750,909 157,538 4.77 In stock


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 Dichlorobenzene at elevated temperature ca. 110 °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.


dppdpybt, PDBPyBT, 1455028-36-0, chemical structure  
Chemical structure and product image 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). 


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) is a good electron transporting materials 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].


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.


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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