D18, narrow bandgap copolymer with high hole mobility
Higher degree of conjugation than DTBT
Specifications | MSDS | Literature and Reviews | Technical Support
D18 (CAS number 2433725-54-1), also referred to as PCE18, is a narrow bandgap copolymer with a backbone alternating electron donating benzodithiophene (BDT) and electron accepting fused-ring dithienobenzothiadiazole (DTBT) units. With a larger molecular plane structure and higher degree of conjugation from the fused ring DTBT, D18 has a high hole mobility of 1.59 × 10-3 cm2 V-1 s-1.
A device efficiency of 18.22% and certified efficiency of 17.6% have been achieved using D18 as the electron donor and Y6 as an acceptor in a single junction non-fullerene polymer solar cell (NF-PSC) [1].
D18 can also be processed in non-halogenated solvents, i.e. o-xylene, please see our collection of Green Energy Materials.
Narrow bandgap copolymer
For high efficient OPV applications
Luminosyn™
High purity, batch-specific GPC data, available larger batch orders and higher molecular weight
Worldwide shipping
Quick and reliable shipping
Green energy materials
Processable in non-halogenated solvents
The Luminosyn™ Range
High Purity Materials: Purified by Soxhlet extraction with methanol, hexane, and chlorobenzene under argon atmosphere.Batch-Specific Data: Confidence in your materials with batch-specific GPC data for your thesis or publications.Large Quantity Orders: Plan your experiments with confidence using polymers from the same batch.General Information
| CAS Number | 2433725-54-1 |
|---|---|
| Full Name | Poly[(2,6-(4,8-bis(5-(2-ethylhexyl)-4-fluoro)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 | (C76H92F2N2S9)n |
| HOMO / LUMO | HOMO = -5.51 eV, LUMO = -2.77 eV [1] |
| Soluble in | o-Xylene, chloroform, chlorobenzene and dichlorobenzene |
| Recommended Processing Solvents at 10mg/ml | Chlorobenzene |
| Synonyms | PCE18 |
| 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). |
Batch details
| Batch number | MW | Mn | PDI | Stock info |
|---|---|---|---|---|
| M2248A3 | 91,999 | 40,877 | 2.25 | In stock |
Chemical Structure
Device Structure
Device structure: ITO/PEDOT:PSS/D18:Y6 (1:1.6)/PDIN/Ag
| Thickness (nm) | VOC (V) | JSC (mA cm-2) | FF (%) | PCE (%) |
|---|---|---|---|---|
| 103 | 0.859 | 27.7 | 76.6 | 18.22 |
MSDS Documentation
D18 MSDS SheetLiterature and Reviews
- 18% Efficiency organic solar cells, Q. Liu et al., Sci. Bull., 65, 272 (2020); doi: 10.1016/j.scib.2020.01.001.
- Progress of the key materials for organic solar cells, Y. Tong et al., Sci. China Chem., 63, 758–765 (2020); DOI: 10.1007/s11426-020-9726-0.
- Multi-channel exciton dissociation in D18/Y6 complexes for high-efficiency organic photovoltaics, Z. Cao et al., J. Mater. Chem. A, 8, 20408-20413 (2020); doi: 10.1039/D0TA07996K.