PBDB-T-2F (PM6)

PBDB-T-2F is a PBDB-T family member and, like others, has a high OPV device performance. Polymer solar cells with PBDB-T-2F as the donor and ITIC-2F as the acceptor have achieved a power conversion efficiency (PCE) of over 13%.

By introducing two fluorine atoms to each thiophene unit of the benzodithiophene (BDT) side chains in PBDB-T, the HOMO/LUMO energy levels are pulled. Complete phase separation is observed in the PBDB-T-2F:ITIC-2F blend due to the distinct surface tension difference between PBDB-T-2F and ITIC-2F, resulting in a high domain purity in the blend.

A certified efficiency of 14.9% has been demonstrated using PBDB-T-2F (PM6) as the electron donor and Y6 as an acceptor in a single junction non-fullerene polymer solar cell (NF-PSC) [2].

Luminosyn™ PBDB-T-2F

Luminosyn™ PBDB-T-2F is now available.

General Information

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-(1’,3’-di-2-thienyl-5’,7’-bis(2-ethylhexyl)benzo[1’,2’-c:4’,5’-c’]dithiophene-4,8-dione)]
Synonyms	PBDB-T-F, PBDB-TF, PM6
Chemical formula	(C68H76F2O2S8)n
CAS number	1802013-83-7
HOMO / LUMO	HOMO = -5.45 eV, LUMO = -3.65 eV [1]
Solubility	Chloroform, chlorobenzene and dichlorobenzene (solution processing solvent chlorobenzene or 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

MSDS Documentation

PBDB-T-2F MSDS sheet

Pricing

Batch	Quantity	Price
M2150A	100 mg	£300.00
M2150A	250 mg	£600.00
M2150A	500 mg	£1020.00
M2150A	1 g	£1820.00

Batch details

Batch	Mw	Mn	PDI	Stock Info
M2150A1	87,845	30,282	2.9	Discontinued
M2150A2	122,827	42,245	2.91	Discontinued
M2150A3	101,325	34,698	2.92	Discontinued
M2150A4	108,790	37,273	2.92	Discontinued
M2150A5*	126,690	60,551	2.09	In Stock
M2150A6	107,004	29,644	3.61	In stock

*M2150A5 has higher molecular weights and it is only processable in chlorobenzene:dichlorobenzene (v/v = 1:1). Please refer to technical data for further information.

Literature and Reviews

1. Over 14% Efficiency in Organic Solar Cells Enabled by Chlorinated Nonfullerene Small-Molecule Acceptors, H. zhang et al., Adv.Mater., 30, 1800613 (2018); DOI: 10.1002/adma.201800613.
2. Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core, J. Yuan et al., Joule (2019); doi: 10.1016/j.joule.2019.01.004.
3. Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor, S. Zhang et al., Adv. Mater., 30, 1800868 (2018); DOI: 10.1002/adma.201800868.
4. High efficiency non-fullerene organic solar cells without electron transporting layers enabled by Lewis base anion doping, R. Wang et al., Nano Energy 51, 736–744 (2018) ; doi: org/10.1016/j.nanoen.2018.07.022.
5. Fluorination vs. chlorination: a case study on high performance organic photovoltaic materials, Y. Zhang et al., Sci. China Chem., 61 (10), 1328–1337 (2018); doi: 10.1007/s11426-018-9260-2.
6. Highly Efficient Flexible Polymer Solar Cells with Robust Mechanical Stability, L. Tan et al., Adv. Sci., 1801180 (2019); DOI: 10.1002/advs.201801180 .
7. 15% Efficiency Tandem Organic Solar Cell Based on a Novel Highly Efficient Wide‐Bandgap Nonfullerene Acceptor with Low Energy Loss, G. Liu et al., Adv. Energy Mater., 1803657 92019); DOI: 10.1002/aenm.201803657.