D18

CAS Number 2433725-54-1

Green Energy Materials, Luminosyn™ Polymers, Materials, OPV Polymers, Organic Conductors, Semiconducting Polymers

D18, narrow bandgap copolymer with high hole mobility

Higher degree of conjugation than DTBT

Specifications | MSDS | Literature and Reviews

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

Luminosyn™ D18 (PCE18)

Luminosyn™ D18 (PCE18) is now available.

High purity

D18 (PCE18) 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

CAS Number	2433725-54-1
Full Name	Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-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	M_W	M_n	PDI	Stock info
M2248A3	91,999	40,877	2.25	In stock

Previous Batch Details

Batch number	M_W	M_n	PDI	Stock info
M2248A1	74,586	31,378	2.38	Discontinued
M2248A2	63,374	33,204	1.91	Discontinued

Chemical Structure

d18, pce18, CAS# 2433725-54-1 — Chemical structure of D18 (PCE18), CAS No. 2433725-54-1

Characterisations

UV-Vis Absorption

Cyclic Voltammetry

The cyclic voltammograms (CV) measurements were recorded on Ossila Potentiostat by using a three-electrode system with platinum disc as the working electrode, platinum wire as the counter electrode, Ag/Ag⁺electrode as the reference electrode with a scanning rate of 100 mV/s in a 0.1 M tetrabutylammonium perchlorate (Bu₄NClO₄) solution. The potential of Ag/Ag⁺ reference electrode was internally calibrated by using ferrocene/ferroncenium (Fc/Fc⁺) as the redox couple.

Device Structure

Device structure: ITO/PEDOT:PSS/D18:Y6 (1:1.6)/PDIN/Ag

Thickness (nm)	V_OC(V)	J_SC (mA cm^-2)	FF (%)	PCE (%)
103	0.859	27.7	76.6	18.22

MSDS Documentation

D18 MSDS Sheet

Literature 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.