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Product Code M2281A1
Price £349.00

D18-Cl, a chlorinated version of D18, is another highly efficient polymer semiconductor that is demonstrating over 18% PCE in non-fullerene polymer solar cells (NF-PSCs).

When compared with D18, which has fluorinated thiophene side chains, shows both deeper HOMO and LUMO energy levels. A device efficiency of 18.12% and certified efficiency of 17.6% have been achieved using D18-Cl as the electron donor and N3 as an acceptor in a single junction non-fullerene polymer solar cell (NF-PSC) [1]. Further improvement of device performance to an outstanding PCE of 18.69% was obtained while a second acceptor PC61BM was used in the active layer [2].

Device structure 1: ITO/PEDOT:PSS/D18-Cl:N3 (1:1.4)/PDIN/Ag

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%)
108 0.859 27.85 75.7 18.13

Device structure 2:
ITO/PEDOT:PSS/D18-Cl:N3:PC61BM (1:1.4:0.1)/PDIN/Ag

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%)
114 0.849 28.22 78 18.69


Luminosyn™ D18-Cl

Luminosyn™ D18-Cl is now available.

High purity
D18-Cl is purified via Soxhlet extraction with acetone, hexane, and chlorobenzene under an argon atmosphere

Large quantity orders
Plan your experiments with polymers from the same batch

General Information

Full name Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-chloro)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-5,5'-(5,8-bis(4-(2-butyloctyl)thiophen-2-yl)dithieno[3',2':3,4;2'',3'':5,6]benzo[1,2-c][1,2,5]thiadiazole)]
Chemical formula (C76H92Cl2N2S7)n
CAS number n.a.
HOMO / LUMO HOMO = -5.56 eV, LUMO = -2.78 eV [1]
Solubility THF, o-xylene, chloroform, chlorobenzene and dichlorobenzene
Processing solvents THF, o-xylene, chloroform, chlorobenzene and dichlorobenzene
Classification / Family Organic semiconducting materials, Medium bandgap polymers, Organic photovoltaics, Polymer solar cells, Perovskite solar cells, Hole-transport layer materials, NF-PSCs, All-polymer solar cells (all-PSCs).

Chemical Structure

Chemical structure of D18-Cl

MSDS Documentation

D18-Cl MSDSD18-Cl MSDS sheet


Batch Quantity Price
M2281A1 100 mg £349.00
M2281A1 250 mg £698.00
M2281A1 500 mg £1190.00
M2281A1 1 g £2100.00
M2281A1 5 g / 10 g* Please contact us for details

*for 5 - 10 grams order quantity, the lead time is 4-6 weeks.

Batch details

Batch Mw Mn PDI Stock Info
M2281A1 31,139 16,456 1.89 In stock

Literature and Reviews

  1. A chlorinated copolymer donor demonstrates a 18.13% power conversion efficiency, J. Qin et al., J. Semicond., 42 (1), 010501 (2021); DOI: 10.1088/1674-4926/42/1/010501.
  2. 18.69% PCE from organic solar cells, K. Jin et al., J. Semicond., 42(6), 060502 (2021); DOI: 10.1088/1674-4926/42/6/060502.
  3. Approaching 18% efficiency of ternary organic photovoltaics with wide bandgap polymer donor and well compatible Y6 : Y6-1O as acceptor, X. Ma et al., Natl. Sci. Rev. 8, nwaa305 (2021); DOI: 10.1093/nsr/nwaa305.


UV-Vis Absorption

d18-cl uv-vis absorption in chloroform and in fim

UV-Vis absorption of of D18-Cl in chloroform (CF) and in film (as-cast film on glass) and its solubility in THF at 8 mg/ml.



To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.