906344

PBDB-T-SF

M_w ≥80,000

• Synonym(s): OS0130, PDBD-TSF, Poly[(2,6-(4,8-bis(5-(2-ethylhexylthio)-4-fluorothiophen-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)]
• Linear Formula: (C₆₈H₇₆F₂O₂S₁₀)_n
• UNSPSC Code: 12352101
• NACRES: NA.23

Properties

• description: Band gap: 1.8 eV
• form: granular
• mol wt: M_w ≥80,000
• color: purple, Shine
• solubility: chlorobenzene: soluble; chloroform: soluble; soluble (o-dichlorobenzene)
• Orbital energy: HOMO -5.4 eV ; LUMO -3.6 eV
• PDI: ~2.5

Description

Application

PBDB-T-SF is a fluorinated wide-bandgap polymeric donor (n-type semiconductor) with relatively deep highest occupied molecular orbital (HOMO) energy level. It has been used in high performance polymer organic solar cells (PSCs).
HOMO =−5.40eV
LUMO =−3.60eV

Polymer organic solar cells (PSCs) device performance:

Device based on PBDB-T-SF:NCBDT-4Cl
Before any post-treatment
PCE= of 13.1%
After device optimizations
Voc = 0.85V
Jsc = 2.35 mA /cm²
FF = 74.3%
PCE >14%
Energy loss = 0.55 eV

The improved performance was attributed to the more efficient photo-electron conversion process in the optimal device.

Device performance based on PBDB-T-SF:ITIC-F as active layer
(ITO)/ZnO/active layer/MoO₃/Al
Voc = 0.88 V
Jsc = 20.50 mA/cm²
FF = 71.9%
PCE = 13.1%
Energy loss = 0.66 eV

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable